Werthamer–Helfand–Hohenberg theory
- Werthamer–Helfand–Hohenberg theory
This theory was proposed in 1966 [ N. R. Werthamer, E. Helfand, P. C. Hohenberg: Phys. Rev. 147 (1966) 295 ] to go beyond BCS theory of superconductivity and it provides predictions of upper critical field (Hc2) in type-II superconductors [http://prola.aps.org/abstract/PR/v147/i1/p295_1 Temperature and Purity Dependence of the Superconducting Critical Field, Hc2. III. Electron Spin and Spin-Orbit Effects ] [http://www.iop.org/EJ/abstract/0295-5075/41/2/207 Upper critical field in Ba1 - xKxBiO3: Magnetotransport vs. magnetotunneling ] . The theory predicts the upper critical field (Hc2) at 0 K from Tc and the slope of Hc2 at Tc.
eg Referred : re MgB2 [http://arxiv.org/abs/cond-mat/0102216 Strongly linked current flow in polycrystalline forms of the newsuperconductor MgB2 ]
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Гельфанд, Юджин — Юджин Гельфанд Eugene H. Helfand Дата рождения: 8 января 1934(1934 01 08) (78 лет) Место рождения: США Страна … Википедия
Вертхамер, Ричард — Натан Ричард Вертхамер англ. Nathan Richard Werthamer Дата рождения: 1935 год(1935) Место рождения: Милуоки, Висконсин, США … Википедия
WHH — or WHH may refer to *William Henry Harrison, American general and president *Werthamer–Helfand–Hohenberg theory of superconductivity … Wikipedia
Upper critical field — Upper critical field= The magnetic field (usually expressed in teslas (T)) which completely suppresses superconductivity in a Type II superconductor at 0K (absolute zero).More properly, the UCF is a function of temperature (and pressure) and if… … Wikipedia
Critical field — Upper critical field The upper critical field is the magnetic field (usually expressed in teslas (T)) which completely suppresses superconductivity in a Type II superconductor at 0K (absolute zero). More properly, the UCF is a function of… … Wikipedia
