研究者詳細 - 田仲　由喜夫

論文 - 田仲　由喜夫

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*Theory of the proximity effect in junctions with unconventional superconductors 招待有り査読有り

Y. Tanaka and A. A. Golubov

Physical Review Letters 98 巻 ( 3 ) 頁： 037003_1-4 2007年

記述言語：英語掲載種別：研究論文（学術雑誌）

We present a general theory of the proximity effect in junctions between diffusive normal metals (DN)
and superconductors. Various possible symmetry classes in a superconductor are considered: evenfrequency
spin-singlet even-parity (ESE) state, even-frequency spin-triplet odd-parity state, oddfrequency
spin-triplet even-parity (OTE) state and odd-frequency spin-singlet odd-parity state. It is shown
that the pair amplitude in a DN belongs, respectively, to an ESE, OTE, OTE, and ESE pairing state since
only the even-parity s-wave pairing is possible due to the impurity scattering.

Theory of Josephson effect in Sr2RuO4 / diffusive ferromagnet / Sr2RuO4 junctions 査読有り

Y. Sawa, T. Yokoyama, Y. Tanaka, A. A. Golubov

Journal of Low Temperature Physics 148 巻 ( 5-6 ) 頁： 887-891 2007年

Dependence of Josephson Current on Orientational Angle in Diffusive p -Wave Superconductor Junctions 査読有り

Y. Sawa, T. Yokoyama, Y. Tanaka, A. A. Golubov.

Journal of Low Temperature Physics 148 巻 ( 5-6 ) 頁： 881-886 2007年

Conductance spectroscopy of spin-triplet superconductors 査読有り

Y. Asano, Y. Tanaka, A. Golubov and S. Kashiwaya.

Physical Review Letters 99 巻 ( 6 ) 頁： 067005_1-4 2007年

Enhanced triplet superconductivity in noncentrosymmetric systems, 査読有り

T. Yokoyama, S. Onari and Y. Tanaka.

Physical Review B 75 巻 ( 17 ) 頁： 172511_1-4 2007年

Local density of states at zigzag edges of carbon nanotubes and graphene 査読有り

K. Sasaki, K. Sato, E. Saito, J. Jiang, S. Onari and Y.Tanaka.

Physical Review B 75 巻 ( 23 ) 頁： 235430_1-7 2007年

Andreev bound states and tunneling characteristics of a non-centrosymmetric superconductor 査読有り

C. Iniotakis, N. Hayashi, T. Sawa, T. Yokoyama, U. May, Y. Tanaka and M. Sigrist.

Physical Review B 76 巻 ( 1 ) 頁： 012501_1-4 2007年

Anomalous Josephson effect between even- and odd-frequency superconductors 査読有り

Y. Tanaka, A. Golubov, S. Kashiwaya and M. Ueda

Physical Review Letters 99 巻頁： 037005_1-4 2007年

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

We demonstrate that, contrary to standard wisdom, the lowest-order Josephson coupling is possible
between odd- and even-frequency superconductors. The origin of this effect is the induced odd- (even-
)frequency pairing component at the interface of bulk even- (odd-)frequency superconductors. The
resulting current-phase relation is found to be proportional to cos\phi, where \phi is the macroscopic phase difference between the two superconductors.

Theory of tunneling spectroscopy of ferromagnetic superconductors 査読有り

T. Yokoyama and Y. Tanaka

Physical Review B 75 巻 ( 13 ) 頁： 132503_1-4 2007年

Quasiclassical green's function theory of Josephson effect in chiral p-wave superconductor / diffusive normal metal / chiral p-wave superconductor junctions 査読有り

Y. Sawa, T. Yokoyama, Y. Tanaka and A. A. Golubov

Physical Review B 75 巻 ( 13 ) 頁： 134508_1-9 2007年

Angular dependence of Josephson currents in unconventional superconducting junctions 査読有り

T. Yokoyama, Y. Tanaka and A. A. Golubov.

Physical Review B, (Rapid Communications) 75 巻 ( 2 ) 頁： 020502_1-4 2007年

Theory of Superconductivity of Carbon Nanotubes and Graphene 査読有り

K. Sasaki, J. Jiang, R. Saito, S. Onari and Y. Tanaka

Journal of the Physical Society of Japan 76 巻 ( 3 ) 頁： 033702_1-4 2007年

Manifestation of the odd-frequency spin-triplet pairing state in diffusive ferromagnet / superconductor junctions 査読有り

T. Yokoyama, Y. Tanaka and A. A. Golubov.

Physical Review B 75 巻 ( 13 ) 頁： 134510_1-8 2007年

A unified origin for the 3D magnetism and superconductivity in NaxCoO2 査読有り

K. Kuroki, S. Ohkubo, T. Nojima, R. Arita, S. Onari and Y. Tanaka.

Physical Review Letters 98 巻 ( 13 ) 頁： 136401_1-4 2007年

Theory of the Josephson effect in unconventional superconducting junctions with diffusive barriers 査読有り

T. Yokoyama, Y. Tanaka and A. A. Golubov

Physical Review B 75 巻 ( 9 ) 頁： 094518_1-10 2007年

Josephson effect due to odd-frequency pairs in diffusive half metals 査読有り

Y. Asano, Y. Tanaka and A. A. Golubov.

Physical Review Letters 98 巻 ( 10 ) 頁： 107002_1-4 2007年

Theory of tunneling spectroscopy in the Larkin-Ovchinnikov state 招待有り査読有り

Y. Tanaka, Y. Asano, M. Ichioka and S. Kashiwaya

Physical Review Letters 98 巻 ( 7 ) 頁： 077001_1-4 2007年

Quantitative model for IcR product in d-wave Josephson junctions 査読有り

T. Yokoyama, Y. Sawa, Y. Tanaka, A. A. Golubov, A. Maeda and A. Fujimaki.

Physical Review B 76 巻頁： 052508_1-4 2007年

Theory of Josephson effect in d-wave superconductor / diffusive ferromagnet / d-wave superconductor junctions 査読有り

T. Yokoyama, Y. Tanaka and A. A. Golubov.

Journal of Magnetism and Magnetic Materials 310 巻頁： 498-500 2007年

Odd-frequency pairs and Josephson current through a strong ferromagnet 査読有り

Y. Asano, Y. Sawa. Y. Tanaka and A. A. Golubov

Physical Review B 77 巻 ( 22 ) 頁： 224525_1-11 2007年

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