Intrinsic and extrinsic origins of the polar Kerr effect in a chiral p-wave superconductor (2008)
Recently, the measurement of the polar Kerr effect (PKE) in the quasi two-dimensional superconductor Sr2RuO4, which is motivated to observe the chirality of px + i py-wave pairing, has been reported....
Impurity Induced Polar Kerr Effect in A Chiral p-wave Superconductor (2008)
We discuss the polar Kerr effect (PKE) in a chiral p-wave (p_x+i p_y-wave) superconductor. It is found that the off-diagonal component of a current-current correlation function is induced by impurity...
Transient Oscillation of Currents in Quantum Hall Effect of Bloch Electrons (2007)
Machida, Manabu, Goryo, Jun, Hatano, Naomichi
We consider the quantum Hall effect of two-dimensional electrons with a periodic potential and study the time dependence of the Hall and longitudinal currents when the electric field is applied...
Quantized spin Hall effect in Helium three-A and other p-wave paired Fermi systems (2006)
Goryo, Jun, Kohmoto, Mahito, Wu, Yong-Shi
In this paper we propose the quantized spin Hall effect (SHE) in the vortex state of a rotating p-wave paired Fermi system in an inhomogeneous magnetic field and in a weak periodic potential. It is...
Goryo, Jun, Soma, Singo, Matsukawa, Hiroshi
We propose a new stage of confiment-decofinment transition, which can be observed in laboratory. In two-gap superconductors (SCs), two kinds of vortex exist and each of them carries a continuously...
Adiabatic Process and Chern Numbers (2006)
We study quantum processes with two or more adiabatic parameters. When the parameters are compactified, a derivative of the Hamiltonian gives a first Chern number, hence an integer. This topological...
Temporal Oscillation of Conductances in Quantum Hall Effect of Bloch Electrons (2006)
Machida, Manabu, Hatano, Naomichi, Goryo, Jun
We study a nonadiabatic effect on the conductances in the quantum Hall effect of two-dimensional electrons with a periodic potential. We found that the Hall and longitudinal conductances oscillate in...
Flux flow resistivity in the two-gap superconductivity (2005)
Goryo, Jun, Matsukawa, Hiroshi
We investigate the flux flow state in a two-gap superconductor in which two s-wave gaps with different amplitudes exist on two separate Fermi surfaces. The flux flow resistivity is obtained on the...
Flux flow resistivity in the system with multiple superconducting gaps (2004)
Goryo, Jun, Matsukawa, Hiroshi
We calculate the flux flow resistivity in a superconductor with multiple s-wave superconducting gaps. Our result agrees well with anomalous field dependence of the resistivity recently observed in...
The two superconducting phases recently discovered in skutterudite PrOs4Sb12 are discussed by using the phenomenological Ginzburg-Landau theory in the cubic (tetrahedral) crystal symmetry T_h....
On Berry Phase in Bloch States (2002)
We comment on the relation between Berry phase and quantized Hall conductivities for charge and spin currents in some Bloch states, such as Bloch electrons in the presence of electromagnetic fields...
We show that the spin quantum Hall effect in the vortex state of two-dimensional rotating superfluid He3 can be described as an adiabatic spin transport of Bloch quasiparticles. We show that the spin...