Timir Datta is an
Indian-American
Indian Americans or Indo-Americans are citizens of the United States with ancestry from India. The United States Census Bureau uses the term Asian Indian to avoid confusion with Native Americans, who have also historically been referred to ...
physicist
A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe.
Physicists generally are interested in the root or ultimate ca ...
specializing in high transition temperature
superconductors
Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material. Any material exhibiting these properties is a superconductor. Unlike ...
and a professor of physics in the department of Physics and Astronomy at the
University of South Carolina, in
Columbia, South Carolina
Columbia is the capital of the U.S. state of South Carolina. With a population of 136,632 at the 2020 census, it is the second-largest city in South Carolina. The city serves as the county seat of Richland County, and a portion of the ci ...
.
Early life and education
Datta grew up in India along with elder brother Jyotirmoy Datta a noted journalist; his father B.N. Dutt a scion of two land owning families from Khulna and Jessore in south central Bengal (British India) was an eminent sugar-refining engineer and on his mother's side a relative of
Michael Madhusudan Dutt
Michael Madhusudan Dutt ((Bengali: মাইকেল মধুসূদন দত্ত); (25 January 1824 – 29 June 1873) was a Bengali poet and playwright. He is considered one of the pioneers of Bengali literature.
Early life
Dutt ...
, the famed poet. He received a master's degree in theoretical plasma physics from
Boston College
Boston College (BC) is a private Jesuit research university in Chestnut Hill, Massachusetts. Founded in 1863, the university has more than 9,300 full-time undergraduates and nearly 5,000 graduate students. Although Boston College is classifi ...
in 1974 under the direction of
Gabor Kalman
Gabor J. Kalman (December 12, 1929 – December 10, 2022) was a Hungarian-American physicist, academic, and author. He was a Distinguished Research Professor Emeritus at Boston College.
Kalman lead research focused on Strongly Coupled Coulomb Sy ...
.
[G. Kalman, T. Datta, KI Golden, Approximation schemes for strongly coupled plasmas, Physical Review A 12 (3), 1125] Datta also worked at the Jet Propulsion laboratory (JPL) in Pasadena, California, as a pre-doctoral NASA research associate of Robert Somoano. He also collaborated with
Carl H. Brans
Carl Henry Brans (; born December 13, 1935) is an American mathematical physicist best known for his research into the theoretical underpinnings of gravitation elucidated in his most widely publicized work, the Brans–Dicke theory.
Biography
...
at
Loyola University New Orleans
Loyola University New Orleans is a private Jesuit university in New Orleans, Louisiana
New Orleans ( , ,[John Perdew
John P. Perdew (born August 30, 1943) is a theoretical condensed matter physicist known for his contributions to the fields of solid-state physics and quantum chemistry. His work on density functional theory has led to him being one of the world's ...]
on the behavior of charge density waves in
jellium. Datta is of
Bengali
Bengali or Bengalee, or Bengalese may refer to:
*something of, from, or related to Bengal, a large region in South Asia
* Bengalis, an ethnic and linguistic group of the region
* Bengali language, the language they speak
** Bengali alphabet, the ...
origin.
Work and research history
Datta was a NSF post-doctoral fellow with Marvin Silver and studied charge propagation in non-crystalline systems
[T Datta, M Silver Schottky‐barrier profile in a‐silicon alloys
Applied Physics Letters 38 (11), 903-905] at the
University of North Carolina
The University of North Carolina is the multi-campus public university system for the state of North Carolina. Overseeing the state's 16 public universities and the NC School of Science and Mathematics, it is commonly referred to as the UNC Sys ...
in Chapel Hill. At UNC-CH he continued his theoretical interests and worked on retarded Vander Waals potential
[T Datta, LH Ford, Retarded Van der Waals potential between a conducting plane and a polarizable particle, Physics Letters A 83 (7), 314-316] with L. H. Ford. Since 1982, he has been on the faculty of the University of South Carolina in Columbia.
He collaborated with several laboratories involved with the early discoveries of high temperature superconductivity, especially the team at NRL, led by Donald U Gubser and Stuart Wolf. This research group at USC was the also first to observe
[ZZ Sheng, AM Hermann, A El Ali, C Almasan, J Estrada, T Datta, RJ Matson, Superconductivity at 90 K in the Tl-Ba-Cu-O system, Physical review letters 60 (10), 937-940] (i) bulk Meissner effect in Tl-copper oxides and thus confirm the discovery by Allen Herman's team at the University of Arkansas of high temperature superconductivity in these compounds. He coined the term "triple digit superconductivity", and his group was the first to observe (ii) fractional quantum hall effect in 3-dimensional carbon.
[T. Datta et al, Observing Quantum Hall States in the Extreme Soft Limit - arxiv.org/pdf/cond-mat/0503166.][M Bleiweiss, M Yin, J Amirzadeh, H Preston, T Datta Extreme Soft Limit Observation of Quantum Hall Effect in a 3-d Semiconductor APS Meeting Abstracts 1, 11012 (2004)]
In a paper with
Raphael Tsu
Raphael Tsu (born December 27, 1931) is a Fellow of the American Physical Society and is Professor Emeritus of electrical engineering at the University of North Carolina at Charlotte, Charlotte, NC.
Early life and education
Tsu was born to a C ...
he derived the first quantum mechanical wave impedance formula for Schrödinger wave functions.
[T Datta, R Tsu, Quantum Wave Resistance of Schrodinger Functions arXiv preprint cond-mat/0311479] He was also the first to show that Bragg's law of X-ray scattering from crystals is a direct consequence of Euclidean length invariance of the incident wave vector; in fact Max von Laue's three diffraction equations are not independent but related by length conservation.
[T Datta, Laue: right or wrong?, Physica Scripta 90(3) 2015 DOI:10.1088/0031-8949/90/3/038002]
Datta is an active researcher, with over 100 papers listed in the SAO/NASA Astrophysics Data System (ADS) as of 2014.
Patents
Datta was issued one US patent in 1995: "Flux-trapped superconducting magnets and method of manufacture", with two co-inventors.
Anti-gravity work
Datta was involved in the university-funded development of a "Gravity Generator" in 1996 and 1997, with then-fellow university researcher
Douglas Torr
Douglas may refer to:
People
* Douglas (given name)
* Douglas (surname)
Animals
*Douglas (parrot), macaw that starred as the parrot ''Rosalinda'' in Pippi Longstocking
* Douglas the camel, a camel in the Confederate Army in the American Civil ...
. According to a leaked document from the Office of Technology Transfer at the University of South Carolina and confirmed to
''Wired'' reporter Charles Platt in 1998, the device would create a "force beam" in any desired direction and the university planned to patent and license this device. Neither information about this university research project nor any "Gravity Generator" device was ever made public.
Despite the apparent less than successful outcome of the "Gravity Generator" development effort with Torr, Datta became interested in the effects of electric fields on gravitation, expanding on Torr's theoretical work on the subject.
A Gravitational Experiment Involving Inhomogeneous Electric Fields (2002)
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Selected publications
See also
* Eugene Podkletnov
Eugene Podkletnov (russian: Евгений Подклетнов, Yevgeny Podkletnov) is a Russian ceramics engineer known for his claims made in the 1990s of designing and demonstrating gravity shielding devices consisting of rotating discs const ...
* Ning Li (physicist)
Ning Li (January 14, 1943 – July 27, 2021) was an Han Chinese scientist holding dual citizenship in both the USA and her birth country of China. She is known for her physics and anti-gravity research. In the 1990s, Li worked as a research scie ...
References
External links
Department of Physics and Astronomy at the University of South Carolina
Timir Datta's page at the University of South Carolina
{{DEFAULTSORT:Datta, Timir
University of South Carolina faculty
Morrissey College of Arts & Sciences alumni
American people of Indian descent
General relativity
Gravity
Quantum mechanics
Superconductivity
Anti-gravity
Year of birth missing (living people)
Living people