Spin-polarized electron tunneling between charge-density-wave metals
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...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2005 |
| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/120777 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-120777 |
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| spelling |
Ekino, T. Gabovich, A.M. Voitenko, A.I. 2017-06-12T19:36:11Z 2017-06-12T19:36:11Z 2005 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 https://nasplib.isofts.kiev.ua/handle/123456789/120777 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. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Электpонные свойства металлов и сплавов Spin-polarized electron tunneling between charge-density-wave metals Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Spin-polarized electron tunneling between charge-density-wave metals |
| spellingShingle |
Spin-polarized electron tunneling between charge-density-wave metals Ekino, T. Gabovich, A.M. Voitenko, A.I. Электpонные свойства металлов и сплавов |
| title_short |
Spin-polarized electron tunneling between charge-density-wave metals |
| title_full |
Spin-polarized electron tunneling between charge-density-wave metals |
| title_fullStr |
Spin-polarized electron tunneling between charge-density-wave metals |
| title_full_unstemmed |
Spin-polarized electron tunneling between charge-density-wave metals |
| title_sort |
spin-polarized electron tunneling between charge-density-wave metals |
| author |
Ekino, T. Gabovich, A.M. Voitenko, A.I. |
| author_facet |
Ekino, T. Gabovich, A.M. Voitenko, A.I. |
| topic |
Электpонные свойства металлов и сплавов |
| topic_facet |
Электpонные свойства металлов и сплавов |
| publishDate |
2005 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| 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.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/120777 |
| citation_txt |
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. |
| work_keys_str_mv |
AT ekinot spinpolarizedelectrontunnelingbetweenchargedensitywavemetals AT gabovicham spinpolarizedelectrontunnelingbetweenchargedensitywavemetals AT voitenkoai spinpolarizedelectrontunnelingbetweenchargedensitywavemetals |
| first_indexed |
2025-11-28T13:39:04Z |
| last_indexed |
2025-11-28T13:39:04Z |
| _version_ |
1850853838028800000 |