Spin-polarized electron tunneling between charge-density-wave metals
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Spin-polarized electron tunneling between charge-density-wave metals
|
|
| Creator |
Ekino, T.
Gabovich, A.M. Voitenko, A.I. |
|
| Subject |
Электpонные свойства металлов и сплавов
|
|
| Description |
For junctions between metals partially gapped by charge density waves (CDWs), the quasiparticle tunnel currents J(V) and conductances G(V) in external magnetic fields H are calculated as functions of H, the bias voltage V, temperature T, the dielectric gaps ∑, and the gapped portions μ of the Fermi surface (FS). The paramagnetic effect of H is taken into account, whereas orbital effects are neglected. General expressions are obtained for different CDW metal electrodes. Analytical formulas are obtained for T = 0. Explicit numerical calculations are carried out for symmetrical junctions. The results are substantially unlike those for junctions between superconductors. It is shown that due to the interplay between quasiparticles from nested and non-nested FS sections the junction properties involve features appropriate to both symmetrical and asymmetrical setups. In particular, for H = 0 discontinuities at eV = ±2∑ and square-root singularities at eV = ±∑ should coexist. Here e is the elementary charge. For H ≠ 0 the former remain intact, while the latter split. It is suggested to use the splitting as a verification of the CDW nature of the pseudogap in high-Tc superconducting oxides. |
|
| Date |
2017-06-12T19:36:11Z
2017-06-12T19:36:11Z 2005 |
|
| Type |
Article
|
|
| Identifier |
Spin-polarized electron tunneling between charge-density-wave metals / T. Ekino, A.M. Gabovich, and A.I. Voitenko // Физика низких температур. — 2005. — Т. 31, № 1. — С. 77-93. — Бібліогр.: 93 назв. — англ.
0132-6414 PACS: 71.45.Lr, 73.40.Gk, 75.20.En, 75.47.Np http://dspace.nbuv.gov.ua/handle/123456789/120777 |
|
| Language |
en
|
|
| Relation |
Физика низких температур
|
|
| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
|
|