Electronic heat capacity of some vanadium compounds at low temperatures | Izvestiya vuzov. Fizika. 2021. № 3. DOI: 10.17223/00213411/64/3/8

Electronic heat capacity of some vanadium compounds at low temperatures

The paper presents the results of a study of the temperature dependence of molar heat capacity at constant pressure in the range (from 5 to 300 K) for vanadium-based materials. For all the studied materials, the values of the density of States near the Fermi level are calculated. It was found that for V3Si and V3Ge materials, the values of the state density μ( E ) correlate with the transition temperatures to the superconducting state. For materials V2O3 and V1.973Me0.027O3 (Me - Al, Fe, Cr), it was found that the temperatures of metal-dielectric phase transitions decrease with increasing values of the density of States.

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Keywords

vanadium oxide, molar heat capacity, density of States, superconductor

Authors

NameOrganizationE-mail
Surikov Vad.I.Omsk State Technical Universitysurikovvadim@gmail.com
Surikov Val.I.Omsk State Technical Universitysurval@mail.ru
Kuznetsova Y.V.Surgut State Universitykuznecova_yv@surgu.ru
Semenyuk N.A.Omsk State Technical Universitysem-natal@mail.ru
Lyakh O.V.Omsk State Technical Universityljach@mail.ru
Prokudina N.A.Omsk State Technical Universityomgtu_physics@mail.ru
Всего: 6

References

Штольц А.К., Суриков В.И., Гельд П. В. // ФНТ. - 1976. - Т. 2. - № 7. - С. 849-855.
Мотт Н.Ф. Переходы металл - изолятор. - М.: Наука, 1979. - 343 с.
Савицкий Е.М., Барон В.В., Ефимов Ю.В. и др. Металловедение сверхпроводящих материалов. - М.: Наука, 1969. - 263 с.
Гельд П.В., Калишевич Г.И., Суриков В.И. и др. // Докл. АН СССР. - 1974. - Т. 215. - № 4. - С. 833-835.
Суриков Вад.И., Данилов С.В., Суриков Вал.И. // ФТТ. - 1983. - Т. 25. - № 5. - С. 1572- 1575.
Зоммерфельд А., Бете Г. Электронная теория металлов. - Л.; М.: ОНТИ, 1938. - 420 с.
Bannerot P.J. and Hallais J.J. // Phys. - 1969. - V. 30. - P. 701.
 Electronic heat capacity of some vanadium compounds at low temperatures | Izvestiya vuzov. Fizika. 2021. № 3. DOI: 10.17223/00213411/64/3/8

Electronic heat capacity of some vanadium compounds at low temperatures | Izvestiya vuzov. Fizika. 2021. № 3. DOI: 10.17223/00213411/64/3/8