• Thumbnail for Yakov Frenkel
    Yakov Il'ich Frenkel (Russian: Яков Ильич Френкель; 10 February 1894 – 23 January 1952) was a Soviet physicist renowned for his works in the field of condensed-matter...
    12 KB (1,327 words) - 08:07, 5 November 2024
  • In crystallography, a Frenkel defect is a type of point defect in crystalline solids, named after its discoverer Yakov Frenkel. The defect forms when an...
    5 KB (600 words) - 19:57, 22 March 2024
  • trap-assisted electron transport in an electrical insulator. It is named after Yakov Frenkel, who published on it in 1938, extending the theory previously developed...
    22 KB (3,262 words) - 15:35, 7 July 2024
  • leader Yakov Frenkel (1894–1952), Soviet physicist Yakov Fliyer (1912–1977), Soviet pianist Yakov Gakkel (1901–1965), Soviet oceanographer Yakov "Yan" Gamarnik...
    3 KB (390 words) - 05:20, 18 November 2024
  • Thumbnail for Exciton
    Exciton (redirect from Frenkel exciton)
    in fullerenes. This Frenkel exciton, named after Yakov Frenkel, has a typical binding energy on the order of 0.1 to 1 eV. Frenkel excitons are typically...
    35 KB (4,628 words) - 22:00, 12 October 2024
  • wide range of different physical situations. Originally introduced by Yakov Frenkel and Tatiana Kontorova [ru] in 1938 to describe the structure and dynamics...
    15 KB (2,594 words) - 15:37, 2 November 2024
  • politician Stefan Frenkel (1902–1979), American violinist Yakov Frenkel (1894–1952), Russian physicist, known for the Frenkel defect Yan Frenkel (1920–1989)...
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  • 1930 by Soviet physicist Igor Tamm. The name phonon was suggested by Yakov Frenkel. It comes from the Greek word φωνή (phonē), which translates to sound...
    47 KB (6,913 words) - 21:30, 12 October 2024
  • such as phonons. Another approach to fluid properties was proposed by Yakov Frenkel. It is based on the assumption that at moderate temperatures, the particles...
    12 KB (1,384 words) - 18:00, 26 June 2024
  • Thumbnail for Abram Ioffe
    Aleksandrov, Pyotr Kapitsa, Pyotr Lukirsky, Isaak Kikoin, Igor Kurchatov, Yakov Frenkel, Nikolay Semyonov, Léon Theremin, Boris Davydov, and Lev Artsimovich...
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  • Thumbnail for Solid state ionics
    1914. Around 1930, the concept of point defects was established by Yakov Frenkel, Walter Schottky and Carl Wagner, including the development of point-defect...
    26 KB (3,262 words) - 13:48, 3 June 2024
  • Russia this model was introduced by the Soviet physicists Yakov Frenkel and T. Kontorova. The Frenkel defect became firmly fixed in the physics of solids and...
    4 KB (515 words) - 19:29, 19 July 2022
  • Thumbnail for Ioffe Institute
    entrance are S. N. Zhurkov, Yulii Borisovich Khariton, Anatoly Alexandrov, Yakov Frenkel, and V. M. Tuchkevich [ru]; right of the entrance - Igor Kurchatov,...
    12 KB (1,328 words) - 11:26, 22 October 2024
  • by the Soviet physicist Yakov Frenkel in 1928, together with some other remarks on the physics of degenerate matter. Frenkel's work, however, was ignored...
    34 KB (3,966 words) - 18:37, 18 September 2024
  • Thumbnail for Dirac sea
    Similar ideas on holes in crystals had been developed by Soviet physicist Yakov Frenkel in 1926, but there is no indication the concept was discussed with Dirac...
    14 KB (2,014 words) - 21:53, 23 August 2024
  • Thumbnail for Diffusion
    radioactive isotopes of lead in the liquid and solid lead. Yakov Frenkel (sometimes, Jakov/Jacob Frenkel) proposed, and elaborated in 1926, the idea of diffusion...
    56 KB (8,418 words) - 09:33, 21 November 2024
  • Thumbnail for Society and culture in Saint Petersburg
    Chagall; the scientists Dmitri Mendeleev, Nikolay Semyonov, Pyotr Kapitsa, Yakov Frenkel, Zhores Alferov, Leonid Kantorovich, Mikhail Lomonosov, Ivan Pavlov...
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  • Thumbnail for Nikolay Semyonov
    known as Stern–Gerlach experiment. In 1925, Semyonov, together with Yakov Frenkel, studied kinetics of condensation and adsorption of vapors. In 1927...
    15 KB (1,440 words) - 04:26, 24 October 2024
  • Thumbnail for Poromechanics
    Other important early contributors to the theory of poroelasticity were Yakov Frenkel and Fritz Gassmann. Energy conversion from fast compressional and shear...
    19 KB (2,496 words) - 06:55, 19 November 2024
  • Thumbnail for Soviet atomic bomb project
    creating an atomic bomb anytime soon.: 25  Early efforts were led by Yakov Frenkel (a physicist specialised on condensed matter), who did the first theoretical...
    70 KB (7,553 words) - 19:59, 3 October 2024
  • term tunnel effect entered the language in 1932 when it was used by Yakov Frenkel in his textbook. In 1957 Leo Esaki demonstrated tunneling of electrons...
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  • Bronstein, theoretical physicist Ilya Frank, physicist, Nobel Prize (1958) Yakov Frenkel, physicist Vitaly Ginzburg, physicist, Nobel Prize (2003) Emanuel Goldberg...
    90 KB (7,516 words) - 07:51, 17 November 2024
  • Thumbnail for Debye model
    intuition of Yakov Frenkel, have shown that transverse phonons do exist in liquids, albeit restricted to frequencies above a threshold called the Frenkel frequency...
    47 KB (9,148 words) - 14:58, 4 October 2024
  • }}}\right)=N_{C}N_{V}e^{-{\frac {E_{g}}{k_{\text{B}}T}}}=n_{i}^{2}} Yakov Frenkel represented diffusion process in condensed matter as an ensemble of...
    27 KB (3,433 words) - 03:31, 13 November 2024
  • Thumbnail for Rostov-on-Don
    S. Popov, and I. P. Pavlov, George Sedov, the Arctic Sea explorer, Yakov Frenkel (1894–1952), a solid-state physicist, Svyatoslav Fyodorov (1927–2000)...
    67 KB (5,847 words) - 07:51, 15 November 2024
  • Thumbnail for Peter the Great St. Petersburg Polytechnic University
    Yulii Khariton, Nikolay Dukhov, Abram Ioffe, Aleksandr Leipunskii, and Yakov Zeldovich, aircraft designers and aerospace engineers, such as Yulii Khariton...
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  • Thumbnail for List of Russian physicists
    liquid crystals Yakov Frenkel, coined the term electron hole, discovered the Frenkel defect of a crystal lattice, described the Poole–Frenkel effect in solid-state...
    13 KB (1,370 words) - 23:35, 9 August 2024
  • Thumbnail for Tavrida National V.I. Vernadsky University
    accredited; Listed on the International Association Of Universities UNESCO. Yakov Frenkel Igor Tamm Vladimir Obruchev Nikolay Mitrofanovich Krylov Abram Ioffe...
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  • Thumbnail for Condensed matter physics
    example, in the introduction to his 1947 book Kinetic Theory of Liquids, Yakov Frenkel proposed that "The kinetic theory of liquids must accordingly be developed...
    61 KB (6,702 words) - 21:23, 19 November 2024
  • active orbitals. Charlotte Froese Fischer Douglas Hartree Vladimir Fock Yakov Frenkel Hartree–Fock method Quantum chemistry computer programs G. Herzberg;...
    8 KB (1,120 words) - 01:27, 1 October 2024