Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Seiji Higashitani"'
Autor:
Nobumi Miyawaki, Seiji Higashitani
Publikováno v:
Journal of Low Temperature Physics. 187:545-552
When Andreev bound states are formed at the surfaces of a superconducting film, there may arise, as the ground state of the film, a superconducting state with broken time-reversal symmetry ( $$\mathcal {T}$$ ). In this state, Cooper pairs with a fini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e8723b75f66563c9cb8f50c78aa8edf
https://doi.org/10.1007/s10909-016-1685-7
https://doi.org/10.1007/s10909-016-1685-7
Autor:
Seiji Higashitani, Nobumi Miyawaki
Publikováno v:
Physical Review B. 98
We report a theoretical study on the phase transition between superconducting states with and without spontaneous surface current. The phase transition takes place due to the formation of surface Andreev bound states in unconventional superconductors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12fa332997d7b5f574f1da281b06b65c
https://doi.org/10.1103/physrevb.98.134516
https://doi.org/10.1103/physrevb.98.134516
The subgap structure in the surface bound states spectrum of superfluid $$^3$$ He-B with rough surface is discussed. The subgap is formed by the level repulsion between the surface bound state and the continuum states in the course of multiple scatte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf7d430ac7aca8366db62cd1c141fbf0
Autor:
Osamu Ishikawa, T. Matsukura, Tohru Hata, Katsuhiko Nagai, C. Kato, Hideo Yano, Ken Obara, Y. Nago, Seiji Higashitani
Publikováno v:
Journal of Low Temperature Physics. 158:182-187
Recently, we revealed that the motion of the normal fluid component in the aerogel is well described by the frictional relaxation model (Higashitani et al. in Phys. Rev. B 71:134508, 2005). To clarify the origin of the friction between the quasiparit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a74574ebdb6ad09429284844f5647f0
https://doi.org/10.1007/s10909-009-0003-z
https://doi.org/10.1007/s10909-009-0003-z
Publikováno v:
Journal of Low Temperature Physics. 155:83-97
The proximity effect in superfluid 3He partly filled with high porosity aerogel is discussed. This system can be regarded as a dirty Fermi liquid/spin-triplet p-wave superfluid junction. Our attention is mainly paid to the case when the dirty layer i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c5c1977e38af92942a97db5e24e7e23
https://doi.org/10.1007/s10909-009-9868-0
https://doi.org/10.1007/s10909-009-9868-0
Publikováno v:
Journal of Low Temperature Physics. 149:294-313
A microscopic theory of transverse acoustic impedance of superfluid 3He is presented. We calculate the stress tensor of superfluid 3He as a response to the oscillating rough wall. For that purpose, we extend a quasi-classical theory with the random S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afa0e900aa550f96b4fbae3feb89b326
https://doi.org/10.1007/s10909-007-9514-7
https://doi.org/10.1007/s10909-007-9514-7
Autor:
Satoshi Murakawa, Yasushi Nagato, M. Arai, Hidehiko Ishimoto, Seiji Higashitani, Y. Okuda, Masahiro Wasai, Yuya Aoki, Katsuhiko Nagai, Ryuji Nomura, Akira Yamaguchi
Publikováno v:
Physical Review Letters. 114
The transverse acoustic impedance of superfluid $^{3}\mathrm{He}$ was measured in the ${A}_{1}$ and ${A}_{2}$ phases up to 13 T to investigate the surface states in nonunitary superfluids. The temperature dependence of the impedance was much larger i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4d9ea138e5ca7383a973be16b50c496
https://doi.org/10.1103/physrevlett.114.105304
https://doi.org/10.1103/physrevlett.114.105304
Publikováno v:
Journal of Physics and Chemistry of Solids. 66:1334-1338
Sound propagation in superfluid 3 He confined in aerogel is studied on the basis of the Keldysh Green's function theory, taking into account the dragged aerogel motion due to collisions with 3 He-quasiparticles. The collision drag effect is important
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ea338b95d259647e35f5f6a58b9999e
https://doi.org/10.1016/j.jpcs.2005.05.007
https://doi.org/10.1016/j.jpcs.2005.05.007
Publikováno v:
Journal of Low Temperature Physics. 138:349-354
A microscopic theory of transverse acoustic impedance of superfluid 3He at low temperatures is presented. we calculate the stress tensor of superfluid 3He as a response to the oscillating rough wall. For that purpose, we extend a quasi-classical theo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f8fd5bc05753bf4c7bd3fcc8953cba4
https://doi.org/10.1007/s10909-005-1576-9
https://doi.org/10.1007/s10909-005-1576-9
Publikováno v:
Journal of Low Temperature Physics. 138:153-157
We discuss the NMR properties of a non-unitary state which has recently been proposed by Fomin as a candidate for the A-like phase of superfluid 3He in aerogel. The new state is robust against the anisotropic scattering by the aerogel strands. We sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7007ba63e6ec052be92159ad271648ba
https://doi.org/10.1007/s10909-005-1543-5
https://doi.org/10.1007/s10909-005-1543-5