Anomalous Transport through the p-Wave Superconducting Channel in the 3-K Phase of Sr2RuO4 (2008)
Kambara, H., Kashiwaya, S., Yaguchi, H., Asano, Y., Tanaka, Y., Maeno, Y.
Using micro fabrication techniques, we extracted individual channels of 3-Kelvin (3-K) phase superconductivity in Sr2RuO4-Ru eutectic systems and confirmed odd-parity superconductivity in the 3-K...
Possible observation of energy level quantization in an intrinsic Josephson junction (2008)
Kashiwaya, H., Matsumoto, T., Kashiwaya, S., Shibata, H., Eisaki, H., Yoshida, Y., ...
Energy level quantization (ELQ) is studied to clarify the macroscopic quantum dynamics of the d-wave Josephson junction (JJ). The influences of the nodal quasiparticles of d-wave superconductivity on...
Odd-frequency pairing and Josephson effect at superconducting interfaces (2006)
Tanaka, Y., Golubov, A. A., Kashiwaya, S., Ueda, M.
We demonstrate that, quite generally, the spin-singlet even-parity (spin-triplet odd-parity) pair potential in a superconductor induces the odd-frequency pairing component with spin-singlet...
Kashiwaya, H., Matsumoto, T., Shibata, H., Kashiwaya, S., Eisaki, H., Yoshida, Y., ...
The switching dynamics of current-biased Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ intrinsic Josephson junctions (IJJs) was studied to clarify the effect of d-wave superconductivity and the stack...
Sugimoto, A., Kashiwaya, S., Eisaki, H., Kashiwaya, H., Tsuchiura, H., Tanaka, Y., ...
Nanoscale electronic inhomogeneity in optimally doped single-layer Bi_2Sr_{1.6}L_{0.4}CuO_{6+delta}, (L-Bi2201, L=La and Gd) as well as bilayer Bi_2Sr_2CaCu_2O_{8+delta} (Bi2212), superconductors has...
Theory of tunneling spectroscopy in the Larkin-Ovchinnikov state (2006)
Tanaka, Y., Asano, Y., Ichioka, M., Kashiwaya, S.
A theory of the tunneling spectroscopy of normal metal / Larkin-Ovchinnikov (LO) state is presented by fully taking account of the periodic modulation of pair potentials in real space. The resulting...
Anomalous features of the proximity effect in triplet superconductors (2005)
Tanaka, Y., Asano, Y., Golubov, A. A., Kashiwaya, S.
Anomalous features of the proximity effect specific to diffusive normal metal / triplet superconductor (DN/TS) junctions are studied within the quasiclassical Green's function formalism. The pair...
Josephson interferometer in a ring topology as a symmetry prove of Sr_2RuO_4 (2005)
Asano, Y., Tanaka, Y., Sigrist, M., Kashiwaya, S.
The Josephson effect is theoretically studied in two types of SQUIDs consisting of $s$ wave superconductor and Sr$_2$RuO$_4$. Results show various response of the critical Josephson current to...
Anomalous features of the proximity effect in triplet superconductors (2005)
Tanaka, Y., Asano, Y., Golubov, A., Kashiwaya, S.
Anomalous features of the proximity effect specific to diffusive normal metal (DN) / triplet superconductor junctions are studied within the quasiclassical Green¿s function formalism. The pair...
Anomalous features of the proximity effect in triplet superconductors (2005)
Tanaka, Y., Asano, Y., Golubov, Dr. A., Kashiwaya, S.
Anomalous features of the proximity effect specific to diffusive normal metal (DN) / triplet superconductor junctions are studied within the quasiclassical Green¿s function formalism. The pair...
Anomalous features of the proximity effect in triplet superconductors (2005)
Tanaka, Y., Asano, Y., Golubov, A.A., Kashiwaya, S.
Anomalous features of the proximity effect specific to diffusive normal metal (DN) / triplet superconductor junctions are studied within the quasiclassical Green¿s function formalism. The pair...
Tanuma, Y., Tanaka, Y., Kashiwaya, S.
Superconducting proximity effect in normal metal (N) / $d_{x^2-y^2}$-wave superconductor (D) junctions in the presence of attractive interelectron potentials which can induce subdominant s-wave pair...
Tanaka, Y., Kashiwaya, S., Yokoyama, T.
Enhanced proximity effect by mid gap Andreev resonant state (MARS) in a diffusive normal metal / insulator / triplet superconductor (DN/TS) junction is studied based on the Keldysh-Nambu...
Tanaka, Y., Nazarov, Y.V., Golubov, A., Kashiwaya, S.
We analyze the transport properties of contacts between unconventional superconductor and normal diffusive metal in the framework of the extended circuit theory. We obtain a general boundary...
Tanaka, Y., Nazarov, Y.V., Golubov, Dr. A., Kashiwaya, S.
We analyze the transport properties of contacts between unconventional superconductor and normal diffusive metal in the framework of the extended circuit theory. We obtain a general boundary...
Tanaka, Y., Nazarov, Yu. V., Golubov, A.A., Kashiwaya, S.
We analyze the transport properties of contacts between unconventional superconductor and normal diffusive metal in the framework of the extended circuit theory. We obtain a general boundary...
Tanaka, Y., Nazarov, Yu. V., Golubov, A. A., Kashiwaya, S.
We analyze the transport properties of contacts between unconventional superconductor and normal diffusive metal in the framework of the extended circuit theory. We obtain a general boundary...
Zero-bias conductance peak splitting due to multiband effect in tunneling spectroscopy (2003)
Tanuma, Y., Kuroki, K., Tanaka, Y., Kashiwaya, S.
We study how the multiplicity of the Fermi surface affects the zero-bias peak in conductance spectra of tunneling spectroscopy. As case studies, we consider models for organic superconductors...
Tunneling Spectra of Skutterudite PrOs_4Sb_{12} (2003)
Asano, Y., Tanaka, Y., Matsuda, Y., Kashiwaya, S.
The tunnel conductance in normal-metal / insulator / PrOs$_4$Sb$_{12}$ junctions is theoretically studied, where skutterudite PrOs$_4$Sb$_{12}$ is considered to be an unconventional superconductor....
Josephson effect in d-wave superconductor junctions in a lattice model (2003)
Shirai, S., Tsuchiura, H., Asano, Y., Tanaka, Y., Inoue, J., Tanuma, Y., ...
Josephson current between two d-wave superconductors is calculated by using a lattice model. Here we consider two types of junctions, $i.e.$, the parallel junction and the mirror-type junction. The...
Kitaura, N., Itoh, H., Asano, Y., Tanaka, Y., Inoue, J., Tanuma, Y., ...
Effects of impurity scattering on tunneling conductance in dirty normal-metal/insulator/superconductor junctions are studied based on the Kubo formula and the recursive Green function method. The...
Split of zero-bias conductance peak in normal-metal / d-wave superconductor junctions (2003)
Yasano, Y., Tanaka, Y., Kashiwaya, S.
Effects of impurity scatterings on the conductance in normal-metal / $d$ wave superconductor junctions are discussed by using the single-site approximation. So far, the split of the zero-bias...
Possible anomalous Doppler shift effect in superconductor Sr$_{2}$RuO$_{4}$ (2003)
Tanaka, Y., Kuroki, K., Tanuma, Y., Kashiwaya, S.
The effect of the Doppler shift is studied in a model for the $\alpha$-$\beta$ bands of Sr$_2$RuO$_4$ consisting of two hybridized 1D bands. Assuming a superconducting gap with nodes in the diagonal...
Tanaka, Y., Kitaura, N., Itoh, H., Inoue, J., Golubov, A., Yoshida, N., ...
Tanaka, Y., Golubov, A., Kashiwaya, S.
Tunneling conductance in diffusive normal (DN) metal/insulator/s-wave superconductor junctions is calculated for various situations by changing the magnitudes of the resistance and Thouless energy in...
Tanaka, Y., Golubov, Dr. A., Kashiwaya, S.
Tunneling conductance in diffusive normal (DN) metal/insulator/s-wave superconductor junctions is calculated for various situations by changing the magnitudes of the resistance and Thouless energy in...
Tanaka, Y., Golubov, A.A., Kashiwaya, S.
Tunneling conductance in diffusive normal (DN) metal/insulator/s-wave superconductor junctions is calculated for various situations by changing the magnitudes of the resistance and Thouless energy in...
Josephson current in s-wave superconductor / Sr_2RuO_4 junctions (2002)
Asano, Y., Tanaka, Y., Sigrist, M., Kashiwaya, S.
The Josephson current between an s-wave and a spin-triplet superconductor Sr$_2$RuO$_4$ (SRO) is studied theoretically. In spin-singlet / spin-triplet superconductor junctions, there is no Josephson...
Tanaka, Y., Golubov, A. A., Kashiwaya, S.
Tunneling conductance in diffusive normal metal / insulator / s-wave superconductor (DN/I/S) junctions is calculated for various situations by changing the magnitudes of the resistance and Thouless...
Hirai, T., Tanaka, Y., Yoshida, N., Asano, Y., Inoue, J., Kashiwaya, S.
Tunneling conductance in ferromagnet / unconventional superconductor junctions is studied theoretically as a function of temperatures and spin-polarization in feromagnets. In d-wave superconductor...
Circuit theory of unconventional superconductor junctions (2002)
Tanaka, Y., Nazarov, Yu. V., Kashiwaya, S.
We extend the circuit theory of superconductivity to cover transport and proximity effect in mesoscopic systems that contain unconventional superconductor junctions. The approach fully accounts for...
Tanuma, Y., Tanaka, Y., Kuroki, K., Kashiwaya, S.
As a probe to determine the pairing symmetry of quasi-two-dimensional anisotropic superconductors, we propose tunneling spectroscopy in the presence of magnetic field, where the magnetic field is...
Theory of magnetotunneling spectroscopy in spin triplet p-wave superconductors (2002)
Tanaka, Y., Tanuma, Y., Kuroki, K., Kashiwaya, S.
We study the influence of a magnetic field $H$ on the zero-bias conductance peak (ZBCP) due to zero-energy Andreev bound state (ZES) in normal metal / unconventional superconductor. For p-wave...
Tanuma, Y., Kuroki, K., Tanaka, Y., Arita, R., Kashiwaya, S., Aoki, H.
We propose that anisotropic $p$-, $d$-, or $f$-wave pairing symmetries can be distinguished from a tunneling spectroscopy in the presence of magnetic fields, which is exemplified here for a model...
Tanaka, Y., Itoh, H., Tsuchiura, H., Inoue, J., Tanuma, Y., Kashiwaya, S.
The magnetic field responses of the zero-bias conductance peak (ZBCP) in tunneling spectra of high $T_{C}$ cuprate junctions are studied theoretically. Our calculation is based on the lattice Green's...
Komissinski, P. V., Il'ichev, E., Ovsyannikov, G. A., Grajcar, M., Hlubina, R., Kovtonyuk, S. A., ...
The superconducting current-phase relation (CPR) of Nb/Au/(001)YBa2Cu3Ox heterojunctions prepared on epitaxial c-axis oriented YBa2Cu3Ox thin films has been measured in a single-junction...
Tanuma, Y., Tanaka, Y., Kashiwaya, S.
In order to clarify the influence of (the presence of) the broken time-reversal symmetry state (BTRSS) induced near the interface, tunneling conductance spectra in normal metal /...
Parity-sensitive measurements based on ferromagnet/superconductor tunneling junctions (2001)
Hirai, T., Yoshida, N., Tanaka, Y., Inoue, J., Kashiwaya, S.
A method to identify the parity of unconventional superconductors is proposed based on tunneling spectroscopy. For a model of calculation, we adopt a ferromagnet/superconductor (F/S) junction of...
Tanuma, Y., Kuroki, K., Tanaka, Y., Kashiwaya, S.
Quasiparticle states near the surface of a quasi-one-dimensional organic superconductor $({TMTSF})_{2}{PF}_6$ are studied based on an extended Hubbard model on a quasi-one dimensional lattice at...
Tanaka, Y., Tanuma, Y., Kashiwaya, S.
Tunneling conductance spectra between a normal metal / d-wave superconductor junction under the presence of bulk impurities in the superconductor are studied. The quasiclassical theory has been...
Superconducting current-phase relation in Nb/Au/(001)YBa2Cu3Ox heterojunctions (2000)
Komissinski, P. V., Il'ichev, E., Ovsyannikov, G. A., Kovtonyuk, S. A., Grajcar, M., Ivanov, Z., ...
We probe directly the superconducting current-phase relations (CPR) of Nb/Au/(001) YBa2Cu3Ox heterojunctions prepared in epitaxial c-axis oriented YBa2Cu3Ox (YBCO) thin films. The measurements are...
Interface effects on the shot noise in normal metal- d-wave superconductor Junctions (1999)
Tanaka, Y., Asai, T., Yoshida, N., Inoue, J., Kashiwaya, S.
The current fluctuation in normal metal / d-wave superconductor junctions are studied for various orientation of the crystal by taking account of the spatial variation of the pair potentials. Not...
Spin-polarized tunneling of La0.67Sr0.33MnO3/YBa2Cu3O7-d junctions (1999)
Sawa, A., Kashiwaya, S., Obara, H., Yamasaki, H., Koyanagi, M., Yoshida, N., ...
The transport properties between ferromagnets and high-Tc superconductors are investigated in La0.67Sr0.33MnO3/YBa2Cu3O7-d (LSMO/YBCO)junctions in the geometry of cross-strip lines. The conductance...
Theory of the Josephson effect in superconductor / ferromagnet / superconductor junctions (1999)
To reveal the influence of the exchange interaction on the Josephson effect, the d.c. Josephson current in unconventional-superconductor / ferromagnet / unconventional-superconductor junctions is...
Spin current in ferromagnet/insulator/superconductor junctions (1998)
Kashiwaya, S., Tanaka, Y., Yoshida, N., Beasley, M. R.
A theory of spin polarized tunneling spectroscopy based on a scattering theory is given for tunneling junctions between ferromagnets and d-wave superconductors. The spin filtering effect of an...
Tanuma, Y., Tanaka, Y., Ogata, M., Kashiwaya, S.
Spatial dependencies of the pair potential and the local density of states near the surfaces of $d_{x^{2}-y^{2}}$-wave superconductors are studied theoretically. The calculation is based on the t-J...
Theory of tunneling spectroscopy in superconducting Sr2RuO4 (1997)
Yamashiro, M., Tanaka, Y., Kashiwaya, S.
A theory for tunneling spectroscopy in normal metal /insulator/triplet superconductor junction is presented. We assume two kinds of non-unitary triplet superconducting states which are the most...