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{{Short description|Indian theoretical physicist (1929–2023)}}
{{Use dmy dates|date=September 2018}}
{{Use Indian English|date=September 2018}}
{{Infobox scientist
| name = Krityunjai Prasad Sinha
| image =
| alt =
| caption =
| birth_date = {{Birth date|df=yes|1929|07|05}}
| birth_place = Akhtiyarpur, [[Bihar]], India
| death_date = {{Death date and age|df=yes|2023|01|23|1929|07|05}}
| death_place = [[Bengaluru]], India
| residence =
| fields = {{ublist | [[Theoretical physics]] }}
| workplaces = {{ublist | [[National Chemical Laboratory]] | [[Bell Labs]] | [[Indian Institute of Science]] | [[North Eastern Hill University]] | [[Harvard University]] | [[Massachusetts Institute of Technology]] }}
| alma_mater = {{ublist | [[Allahabad University]] | [[Savitribai Phule Pune University]] | [[University of Bristol]] }}
| doctoral_advisor = {{ublist | G. I. Finch | [[Maurice Pryce]] }}
| doctoral_students =
| known_for = Studies on [[Solid state physics]] and [[Cosmology]]
| awards = {{ublist| 1974 [[Shanti Swarup Bhatnagar Prize]] | 1975  [[Maharishi University of Management|MUM]] Physics Award | 1977 [[University of Bristol|UoB]] Distinguished Alumnus award | 1984 [[Indian Institute of Science|IISc]] Platinum Jubilee Distinguished Alumni Award }}
}}

'''Krityunjai Prasad Sinha''' (5 July 1929 – 23 January 2023) was an Indian theoretical physicist and an emeritus professor at the [[Indian Institute of Science]]. Known for his research in [[solid state physics|solid-state physics]] and [[cosmology]], Sinha was elected a fellow of all the three major Indian science academies – the [[Indian National Science Academy]], the [[Indian Academy of Sciences]], and the [[National Academy of Sciences, India]]. In 1974, the [[Council of Scientific and Industrial Research]], the apex agency of the Government of India for scientific research, awarded him the [[Shanti Swarup Bhatnagar Prize for Science and Technology]], one of the highest honors in Indian science, in recognition of his contributions to the field of physical sciences.<ref name="View Bhatnagar Awardees">{{cite web|url=http://ssbprize.gov.in/Content/AwardeeList.aspx |title=View Bhatnagar Awardees |publisher=Shanti Swarup Bhatnagar Prize |date=2016 |access-date=12 November 2016 |url-status=live |archive-url=https://web.archive.org/web/20161016194310/http://ssbprize.gov.in/Content/AwardeeList.aspx |archive-date=16 October 2016 }}</ref>{{Refn|group=note|Long link – please select award year to see details}}

== Biography ==
[[File:University of Pune -Main Building 1.JPG|thumb|235px|left|University of Pune]]
Born in Akhtiyarpur, in the Indian state of [[Bihar]], KP Sinha passed his matriculation examination in 1944 and completed the intermediate studies in 1946 before joining [[Allahabad University]] to earn a BSc in 1948.<ref name="Faculty Profile">{{Cite web|url=http://www.physics.iisc.ernet.in/~sinha/ |title=Faculty profile |date=2017 |publisher=Indian Institute of Science |url-status=live |archive-url=https://web.archive.org/web/20161028100621/http://www.physics.iisc.ernet.in/~sinha/ |archive-date=2016-10-28 }}</ref> Subsequently, on completion of his MSc in 1950 from the same institution, he enrolled at [[Savitribai Phule Pune University]] for his doctoral studies under the guidance of GI Finch and secured a PhD in solid state physics in 1956.<ref name="Indian fellow-K.P. Sinha">{{Cite web |url=http://insaindia.res.in/detail/N79-0778 |title=Indian fellow-K.P. Sinha |date=2017-11-03 |publisher=Indian National Science Academy |archive-url=https://web.archive.org/web/20170427003559/http://insaindia.res.in/detail/N79-0778 |archive-date=2017-04-27 |url-status=live |access-date=2017-11-03}}</ref> Moving to the UK, Sinha did his post-doctoral work at the laboratory of [[Maurice Pryce|Maurice Henry Lecorney Pryce]] during 1957–59, and his studies there in theoretical physics earned him a second PhD from the [[University of Bristol]] in 1965.<ref name="Faculty Profile" />

In 1959, Sinha had returned to India to join the [[National Chemical Laboratory]] as a group leader at the ''Solid State and Molecular Physics Unit''. He carried out research there until 1968, when he had an opportunity to join [[Bell Labs]] in [[New Jersey]]. Sinha's stay at the [[Murray Hill, New Jersey|Murray Hill]] facility lasted two years. On his return to India in 1970, he joined the [[Indian Institute of Science]] as a senior professor at the department of physics, commencing a service which would last over three and a half decades. During this period, Sinha chaired a number of divisions such as the Division of Applied Mathematics (1971–73 and 1975–77) and the Centre for Theoretical Studies (1972–73 and 1981–87) for two terms each, and the Division of Physics and Mathematics from 1972 to 1976. On his superannuation from regular service in 1990, Sinha continued his association with IISc as a senior scientist of the [[Indian National Science Academy]] (INSA) during 1990–93, as a distinguished scientist of the [[Council of Scientific and Industrial Research]] from 1996 to 1998, and as an INSA honorary scientist since 2006.<ref name="Faculty Profile"/>

Besides holding the directorship of the ''Institute of Fundamental Research on Complex System'' of [[North Eastern Hill University]] during 1991–94,<ref name="Faculty Profile" /> Sinha had two sabbaticals, starting with a summer stint at [[Lyman Laboratory of Physics]] of [[Harvard University]] in 1999. Later, he was associated with [[Charles Stark Draper Laboratory]] as a consultant and with [[Massachusetts Institute of Technology]] as a visiting scientist, both assignments running concurrently from 2000 to 2003. Sinha also served as a visiting faculty at [[International Centre for Theoretical Physics]] on four occasions (1970, 72, 76 and 83), at H. H. Wills Physics Lab of [[University of Bristol]] and Cavendish Laboratory of [[University of Cambridge]] during 1977–78, at [[University of Grenoble]] and [[University of Paris]] in 1983 and 1984, at [[Institute for Physical Problems]] and Institute of Theoretical Physics, Goteborg in 1986 and [[University of Western Ontario]] during 1987–88).<ref name="Faculty Profile" />

Sinha, who held the position of emeritus professor of the Indian Institute of Science since his superannuation,<ref name="Emeritus Professor">{{Cite web|url=http://www.physics.iisc.ernet.in/people-faculty.php |title=Emeritus Professor |date=2017 |publisher=Indian Institute of Science |url-status=live |archive-url=https://web.archive.org/web/20130622204619/http://www.physics.iisc.ernet.in/people-faculty.php |archive-date=2013-06-22 }}</ref> lived in Dollars Colony, in [[Bengaluru]].<ref name="NASI fellows">{{Cite web|url=http://www.nasi.org.in/fellows.asp?RsFilter=S |title=NASI fellows |date=2017 |publisher=National Academy of Sciences, India |url-status=dead |archive-url=https://web.archive.org/web/20160316043224/http://nasi.org.in/fellows.asp?RsFilter=S |archive-date=2016-03-16 }}</ref> He died there on 23 January 2023, at the age of 93.<ref>{{cite web |title=Krityunjai Prasad Sinha (1929–2023) |url=https://www.currentscience.ac.in/Volumes/125/02/0212.pdf |website=Current Science |access-date=17 November 2023}}</ref>

== Legacy ==
[[File:E x e potential energy surfaces.jpg|thumb|235px|The potential energy surfaces of an E ⊗ e Jahn–Teller effect]]
Sinha's theoretical work covered various aspects of solid state physics and he has made significant contributions in the field of crystal magnetism.<ref name="Brief Profile of the Awardee">{{Cite web|url=http://ssbprize.gov.in/content/Detail.aspx?AID=66 |title=Brief Profile of the Awardee |date=2017 |publisher=Shanti Swarup Bhatnagar Prize |url-status=live |archive-url=https://web.archive.org/web/20170413235653/http://ssbprize.gov.in/content/Detail.aspx?AID=66 |archive-date=2017-04-13 }}</ref> His early work during his doctoral and post-doctoral days was based on [[condensed matter theory]], [[semiconductors]], [[quantum well]], [[Cold Fusion]], [[phonons]], and photon-induced effects in solids.<ref name="Faculty Profile" /> Later, Sinha worked on the origin of giant [[magnetic moment]]s as well as [[exciton]] and [[electron]] [[phase transitions]] in solids, and developed an electronic pairing mechanism related to [[bosons]] and biexcitons for predicting the phenomenon of photon. He elucidated [[superconductivity]] at high temperatures by way of a non-equilibrium mechanism<ref name="Handbook of Shanti Swarup Bhatnagar Prize Winners">{{cite web |url=http://www.csirhrdg.res.in/ssb.pdf |title=Handbook of Shanti Swarup Bhatnagar Prize Winners |publisher=Council of Scientific and Industrial Research |date=1999 |url-status=dead |archive-url=https://web.archive.org/web/20160304043957/http://www.csirhrdg.res.in/ssb.pdf |archive-date=4 March 2016 |access-date=13 April 2017 }}</ref> and also developed a statistical theory on the origin of [[ferroelectricity]] and structural phase transitions induced by cooperative [[Jahn-Teller Effect|Jahn-Teller effect]]; his work on the magnetism is described in one of his books.<ref name="Information1979">{{cite book|author=Reed Business Information |title=New Scientist |url=https://archive.org/details/bub_gb_UBWAQYm3rPMC |date=10 May 1979 |publisher=Reed Business Information |pages=[https://archive.org/details/bub_gb_UBWAQYm3rPMC/page/n99 464]– }}</ref> The [[luminescence]] efficiency of solids, [[Ricci scalar curvature]], super [[strong gravity]], [[Gravitational singularity|singularity]] free cosmology, and low energy nuclear reactions are some other areas he has worked on.<ref name="Indian fellow-K.P. Sinha" />

Sinha's studies have been documented by way of a number of articles,<ref name="Browse by Fellow">{{Cite web|url=http://repository.ias.ac.in/view/fellows/Sinha=3AKrityunjai_Prasad=3A=3A.html |title=Browse by Fellow |date=2017 |publisher=Indian Academy of Sciences |url-status=live |archive-url=https://web.archive.org/web/20170413235102/http://repository.ias.ac.in/view/fellows/Sinha%3D3AKrityunjai_Prasad%3D3A%3D3A.html |archive-date=2017-04-13 }}</ref>{{Refn|group=note|Please see ''Selected bibliography'' section}} and online article repositories such as [[Google Scholar]] and [[ResearchGate]] have listed many of them.<ref name="On Google Scholar">{{Cite web|url=https://scholar.google.com/citations?user=3J4FTKMAAAAJ&hl=en |title=On Google Scholar |date=2017 |publisher=Google Scholar |url-status=live |archive-url=https://web.archive.org/web/20170413235642/https://scholar.google.com/citations?user=3J4FTKMAAAAJ&hl=en |archive-date=2017-04-13 }}</ref><ref name="On ResearchGate">{{Cite web|url=https://www.researchgate.net/profile/Krityunjai_Sinha |title=On ResearchGate |date=2017 |url-status=live |archive-url=https://web.archive.org/web/20170414080831/https://www.researchgate.net/profile/Krityunjai_Sinha |archive-date=2017-04-14 }}</ref> He has published 6 books which included ''Foundry Technology'',<ref name="BaileySinha1968">{{cite book|author1=Gerald Duane Bailey |author2=Krityunjai Prasad Sinha |title=Foundry Technology |url=https://books.google.com/books?id=ZOwtHAAACAAJ |year=1968 |publisher=Roorkee Publishing House |url-status=live |archive-url=https://web.archive.org/web/20170414004448/https://books.google.com/books?id=ZOwtHAAACAAJ |archive-date=2017-04-14 }}</ref> ''Interactions in magnetically ordered solids'',<ref name="SinhaKumar1980">{{cite book|author1=Krityunjai Prasad Sinha |author2=Narendra Kumar |title=Interactions in magnetically ordered solids |url=https://books.google.com/books?id=pHsvAAAAIAAJ |year=1980 |publisher=Oxford University Press |isbn=9780198514237 |url-status=live |archive-url=https://web.archive.org/web/20170414080607/https://books.google.com/books?id=pHsvAAAAIAAJ |archive-date=2017-04-14 }}</ref> ''Aspects of Gravitational Interactions'',<ref name="SrivastavaSinha1998">{{cite book|author1=Dr. S. K. Srivastava |author2=Krityunjai Prasad Sinha |title=Aspects of Gravitational Interactions |url=https://books.google.com/books?id=YWssAAAAYAAJ |date=1 January 1998 |publisher=Nova Science Publishers |isbn=978-1-56072-575-6 |url-status=live |archive-url=https://web.archive.org/web/20170414004503/https://books.google.com/books?id=YWssAAAAYAAJ |archive-date=14 April 2017 }}</ref> ''High Temperature Superconductivity: Current Results and Novel Mechanisms''<ref name="SinhaKakani1994">{{cite book|author1=Krityunjai Prasad Sinha |author2=S. L. Kakani |title=High Temperature Superconductivity: Current Results and Novel Mechanisms |url=https://books.google.com/books?id=j6YsAAAAYAAJ |year=1994 |publisher=Nova Science Publishers |isbn=978-1-56072-133-8 |url-status=live |archive-url=https://web.archive.org/web/20170414002713/https://books.google.com/books?id=j6YsAAAAYAAJ |archive-date=2017-04-14 }}</ref> and ''Magnetic superconductors: recent developments'',<ref name="SinhaKankani1989">{{cite book|author1=Krityunjai Prasad Sinha |author2=S. L. Kankani |title=Magnetic superconductors: recent developments |url=https://books.google.com/books?id=YTBRAAAAMAAJ |year=1989 |publisher=Nova Science Publishers, Incorporated |isbn=978-0-941743-62-4 |url-status=live |archive-url=https://web.archive.org/web/20170414002852/https://books.google.com/books?id=YTBRAAAAMAAJ |archive-date=2017-04-14 }}</ref> and has contributed chapters to books published by others.<ref name="PavunaBozovic1994">{{cite book|author1=Davor Pavuna |author2=Ivan Bozovic |title=Oxide Superconductor Physics and Nano-engineering |url=https://books.google.com/books?id=ExhRAAAAMAAJ |year=1994 |publisher=SPIE |isbn=9780819414533 |url-status=live |archive-url=https://web.archive.org/web/20170414002556/https://books.google.com/books?id=ExhRAAAAMAAJ |archive-date=2017-04-14 }}</ref><ref name="Reimer2005">{{cite book|author=Albert Reimer |title=Spacetime Physics Research Trends |url=https://books.google.com/books?id=vTX-AwyLJaIC&pg=PR2 |year=2005 |publisher=Nova Publishers |isbn=978-1-59454-322-7 |pages=2– |url-status=live |archive-url=https://web.archive.org/web/20170414083738/https://books.google.com/books?id=vTX-AwyLJaIC&pg=PR2 |archive-date=2017-04-14 }}</ref><ref name="Bangalore1984">{{cite book|author=Indian Institute of Science, Bangalore |title=Research and development in physics & mathematical sciences |url=https://books.google.com/books?id=vrHvAAAAMAAJ |year=1984 |publisher=Indian Institute of Science |url-status=live |archive-url=https://web.archive.org/web/20170414083735/https://books.google.com/books?id=vrHvAAAAMAAJ |archive-date=2017-04-14 }}</ref> His work has also drawn citations from a number of authors.<ref name="Madelung2013">{{cite book|author=O. Madelung |title=Advances in Solid State Physics: Festkörper Probleme |url=https://books.google.com/books?id=LJ83BQAAQBAJ&pg=PA231 |date=11 September 2013 |publisher=Elsevier Science |isbn=978-1-4831-5414-5 |pages=231– |url-status=live |archive-url=https://web.archive.org/web/20170414083737/https://books.google.com/books?id=LJ83BQAAQBAJ&pg=PA231 |archive-date=14 April 2017 }}</ref><ref name="TarozziMerwe2012">{{cite book|author1=Gino Tarozzi |author2=Alwyn van der Merwe |title=Open Questions in Quantum Physics: Invited Papers on the Foundations of Microphysics |url=https://books.google.com/books?id=AhIACQAAQBAJ&pg=PA212 |date=6 December 2012 |publisher=Springer Science & Business Media |isbn=978-94-009-5245-4 |pages=212– |url-status=live |archive-url=https://web.archive.org/web/20170414004559/https://books.google.com/books?id=AhIACQAAQBAJ&pg=PA212 |archive-date=14 April 2017 }}</ref><ref name="ProninObukhov1991">{{cite book|author1=P I Pronin |author2=Yu N Obukhov |title=Modern Problems of Theoretical Physics: Jubilee Volume of D Ivanenko's 85th Birthday |url=https://books.google.com/books?id=DoUGCwAAQBAJ&pg=PA173 |date=15 March 1991 |publisher=World Scientific |isbn=978-981-4506-87-8 |pages=173– |url-status=live |archive-url=https://web.archive.org/web/20170414004437/https://books.google.com/books?id=DoUGCwAAQBAJ&pg=PA173 |archive-date=14 April 2017 }}</ref><ref name="BaeriswylCampbell2013">{{cite book|author1=[[Dionys Baeriswyl]]|author2=David K. Campbell |author3=Jose M.P. Carmelo, Francisco Guinea, Enrique Louis |title=The Hubbard Model: Its Physics and Mathematical Physics |url=https://books.google.com/books?id=Dm31BwAAQBAJ&pg=PA88 |date=11 November 2013 |publisher=Springer Science & Business Media |isbn=978-1-4899-1042-4 |pages=88– |url-status=live |archive-url=https://web.archive.org/web/20170414002820/https://books.google.com/books?id=Dm31BwAAQBAJ&pg=PA88 |archive-date=14 April 2017 }}</ref> and he has supervised the doctoral and post doctoral studies of 45 scholars.<ref name="Faculty Profile" />

Sinha is credited with initiating theoretical studies on [[condensed matter]] at a number of institutions in India<ref name="Indian fellow-K.P. Sinha" /> and delivered the ''Deshmukh lecture'' of the [[University of Nagpur]] in 1995.<ref name="Faculty Profile" /> He was an invited speaker at the 8th and 10th sessions of [[International Conference on Cold Fusion]]. Sinha served as the chapter chair of the Indian Physics Association during 1971–73 and as the president of Indian Cryogenic Council from 1990 to 1993. He is a member of the [[Indian Science Congress Association]], [[American Physical Society]], [[International Society on General Relativity and Gravitation]], Society for Scientific Values, [[New York Academy of Sciences]] and [[American Association for the Advancement of Science]].<ref name="Indian fellow-K.P. Sinha" />

== Awards and honours ==
Sinha, a founder fellow of the Indian Cryogenic Council, was elected as a fellow by the Indian Academy of Sciences in 1971<ref name="Fellow profile">{{Cite web|url=http://www.ias.ac.in/describe/fellow/Sinha,_Prof._Krityunjai_Prasad |title=Fellow profile |date=2017 |publisher=Indian Academy of Sciences |url-status=live |archive-url=https://web.archive.org/web/20170413235622/http://www.ias.ac.in/describe/fellow/Sinha%2C_Prof._Krityunjai_Prasad |archive-date=2017-04-13 }}</ref> and he was selected as a national professor by the [[University Grants Commission of India]] in 1972, a post he held for one year.<ref name="Indian fellow-K.P. Sinha" /> The Council of Scientific and Industrial Research awarded him the [[Shanti Swarup Bhatnagar Prize]], one of the highest Indian science awards in 1974.<ref name="CSIR list of Awardees">{{Cite web|url=http://www.csir.res.in/careeraward/prize-winner-indexdiscipline-wise |title=CSIR list of Awardees |date=2017 |publisher=Council of Scientific and Industrial Research |url-status=live |archive-url=https://web.archive.org/web/20170409021146/http://www.csir.res.in/careeraward/prize-winner-indexdiscipline-wise |archive-date=2017-04-09 }}</ref> Sinha received the Award for excellence in Physics of [[Maharishi University of Management]] in 1975 and H. H. Wills Physics Laboratory of [[University of Bristol]] honored him with the Distinguished Alumnus Award in 1977.<ref name="Faculty Profile" /> The elected fellowships of the Indian National Science Academy and the National Academy of Sciences, India reached him in 1979<ref name="INSA Year Book 2016">{{Cite web |url=http://www.insaindia.res.in/pdf/YearBook_2016.pdf |title=INSA Year Book 2016 |date=2017 |publisher=Indian National Science Academy |url-status=dead |archive-url=https://web.archive.org/web/20161104001952/http://www.insaindia.res.in/pdf/YearBook_2016.pdf |archive-date=4 November 2016 |access-date=13 April 2017 }}</ref> and 1982 respectively.<ref name="NASI Year Book 2015">{{Cite web|url=http://www.nasi.org.in/Year%20Book%202015.pdf |title=NASI Year Book 2015 |date=2017 |publisher=National Academy of Sciences, India |url-status=dead |archive-url=https://web.archive.org/web/20150806211716/http://www.nasi.org.in/Year%20Book%202015.pdf |archive-date=2015-08-06 }}</ref> Two years later, Sinha received the Platinum Jubilee Distinguished Alumnus Award of the Indian Institute of Science.<ref name="Indian fellow-K.P. Sinha" /> ''World Who's Who in Science from Antiquity to the Present'' has been featuring Sinha since its 1976–77 edition.<ref name="Faculty Profile" />

== Selected bibliography ==
=== Books ===
* {{cite book|author1=Gerald Duane Bailey|author2=Krityunjai Prasad Sinha|title=Foundry Technology|url=https://books.google.com/books?id=ZOwtHAAACAAJ|year=1968|publisher=Roorkee Publishing House}}
* {{cite book|author1=Krityunjai Prasad Sinha|author2=Narendra Kumar|title=Interactions in magnetically ordered solids|year=1980|publisher=Oxford University Press|isbn=978-0198514237}}
* {{cite book|author1=Krityunjai Prasad Sinha|author2=S. L. Kankani|title=Magnetic superconductors: recent developments|year=1989|publisher=Nova Science Publishers, Incorporated|isbn=978-0-941743-62-4}}
* {{cite book|author1=Krityunjai Prasad Sinha|author2=S. L. Kakani|title=High Temperature Superconductivity: Current Results and Novel Mechanisms|year=1994|publisher=Nova Science Publishers|isbn=978-1-56072-133-8}}
* {{cite book|author1=Dr. S. K. Srivastava|author2=Krityunjai Prasad Sinha|title=Aspects of Gravitational Interactions|date=1 January 1998|publisher=Nova Science Publishers|isbn=978-1-56072-575-6}}

=== Chapters ===
* {{cite book|author=Indian Institute of Science, Bangalore|title=Research and development in physics & mathematical sciences|year=1984|publisher=Indian Institute of Science}}
* {{cite book|author1=Davor Pavuna|author2=Ivan Bozovic|title=Oxide Superconductor Physics and Nano-engineering|url=https://books.google.com/books?id=ExhRAAAAMAAJ|year=1994|publisher=SPIE|isbn=9780819414533}}
* {{cite book|author=Albert Reimer|title=Spacetime Physics Research Trends|year=2005|publisher=Nova Publishers|isbn=978-1-59454-322-7|pages=2–}}

=== Articles ===
* {{Cite journal |last=K. P. Sinha, U. N. Upadhyaya |title=Phonon-Magnon Interaction in Magnetic Crystals |journal=Phys. Rev. D |date=1962 |volume=127 |issue=2 |pages=432–439 |doi=10.1103/PhysRev.127.432|bibcode=1962PhRv..127..432S }}
* {{Cite journal |last=G.C. Shukla. Author links open the author workspace.K.P. Sinha |title=Electron-phonon coupling in dielectrics |journal=Journal of Physics and Chemistry of Solids |date=1966 |volume=27 |issue=11–12 |pages=1837–1847 |doi=10.1016/0022-3697(66)90115-6|bibcode=1966JPCS...27.1837S }}
* {{Cite journal |last=N. Kumar, K. P. Sinha |title=Possibility of Photoinduced Superconductivity |journal=Physical Review |date=1968 |volume=174 |issue=482 |pages=482–488 |doi=10.1103/PhysRev.174.482|bibcode=1968PhRv..174..482K }}
* {{Cite journal |last=C. Sivaram, K. P. Sinha |title=Strong gravity, black holes, and hadrons |journal=Phys. Rev. D |date=1977 |volume=16 |issue=6 |pages=1975–1978 |doi=10.1103/PhysRevD.16.1975|bibcode=1977PhRvD..16.1975S }}
* {{Cite journal |last=K.N. Shrivastava, K.P. Sinha |title=Magnetic superconductors: Model theories and experimental properties of rare-earth compounds |journal=Physics Reports |date=1984 |volume=115 |issue=3 |pages=93–149 |doi=10.1016/0370-1573(84)90122-4|bibcode=1984PhR...115...93S }}

== See also ==
{{Div col}}
* [[Quantum well]]
* [[Spontaneous symmetry breaking]]
{{div col end}}
{{portal|India|Physics}}

== Notes ==
{{Reflist|group=note|2}}

== References ==
{{Reflist}}

== External links ==
* {{Cite web|url=http://www.physics.iisc.ernet.in/people-faculty.php |title=Krityunjai Prasad Sinha – Retired Professor |date=2017 |publisher=Indian Institute of Science |page=IISc faculty list |url-status=bot: unknown |archive-url=https://archive.today/20130730001311/http://www.physics.iisc.ernet.in/people-faculty.php |archive-date=2013-07-30 }}
* {{Cite web |url=http://catalogue.nla.gov.au/Record/1401636 |title=Listing on National Library of Australia catalogue |date=2017 |publisher=National Library of Australia}}

== Further reading ==
* {{Cite web |url=https://archive.org/details/InteractionsInMagneticallyOrderedSolids |title=Interactions in Magnetically Ordered Solids |last=Krityunjai Prasad Sinha, Narendra Kumar |year=1980 |publisher=Oxford University Press|work=E-Book}}
* {{Cite book |url=https://archive.org/details/worldwhoswhoinsc0000unse/page/1855 |title=World Who's Who in Science: From Antiquity to the Present |last=Allen G. Debus |year=1968 |pages=[https://archive.org/details/worldwhoswhoinsc0000unse/page/1855 1855] |publisher=Marquis-Who's Who, Incorporated |isbn=9780837910017 }}

{{SSBPST recipients in Physical Science}}
{{Authority control}}

{{DEFAULTSORT:Sinha, Krityunjai Prasad}}
[[Category:1929 births]]
[[Category:2023 deaths]]
[[Category:Scientists from Bihar]]
[[Category:Indian theoretical physicists]]
[[Category:Indian technology writers]]
[[Category:University of Allahabad alumni]]
[[Category:Savitribai Phule Pune University alumni]]
[[Category:Alumni of the University of Bristol]]
[[Category:Scientists at Bell Labs]]
[[Category:North-Eastern Hill University]]
[[Category:Harvard University alumni]]
[[Category:Massachusetts Institute of Technology faculty]]
[[Category:Academics of the University of Cambridge]]
[[Category:Academic staff of Grenoble Alpes University]]
[[Category:Academic staff of the University of Paris]]
[[Category:Academic staff of the University of Western Ontario]]
[[Category:Recipients of the Shanti Swarup Bhatnagar Award in Medical Science]]
[[Category:Fellows of the Indian Academy of Sciences]]
[[Category:Fellows of the Indian National Science Academy]]
[[Category:Fellows of the National Academy of Sciences, India]]
[[Category:Academics of the University of Bristol]]
[[Category:Rare earth scientists]]

Krityunjai Prasad Sinha - Revision history

Vinay at 23:44, 7 February 2026