36 citations · 37 across the 2 of their papers we have counts for
4 papers
Numerical Study of Current-Induced Domain-Wall Dynamics: Crossover from Spin Transfer to Momentum Transfer
Daisuke Matsubayashi, Masafumi Udagawa, Masao Ogata
We study current-induced dynamics of a magnetic domain wall by solving a time-dependent Schrödinger equation combined with Landau-Lifshitz-Gilbert equation in a one-dimensional ele…
Charge ordering and coexistence of charge fluctuations in quasi-two-dimensional organic conductors -(BEDT-TTF)
Masafumi Udagawa, Yukitoshi Motome
We present a scenario for the peculiar coexistence of charge fluctuations observed in quasi-2D 1/4-filled organic conductors -(BEDT-TTF) in the quantum critical regime wher…
Formation of non-unitary state near the upper-critical field of SrRuO
Masafumi Udagawa, Youichi Yanase, Masao Ogata
We have studied the superconducting state of SrRuO under a magnetic field parallel to the superconducting plane. We show that due to a weak spin-orbit coupling, non-unitary…
Effects of Fermi surface and superconducting gap structure in the field-rotational experiments: A possible explanation of the cusp-like singularity in YNiBC
Masafumi Udagawa, Youichi Yanase, Masao Ogata
We have studied the field-orientational dependence of zero-energy density of states (FODOS) for a series of systems with different Fermi surface and superconducting gap structures.…