J. Phys. Soc. Jpn. 80 (2011) Supplement A pp. SA133 2011年7月
We investigate the ground state of the Kondo necklace model on<br />
geometrically-frustrated lattices by the variational Monte Carlo simulation. To<br />
explore the possibility of a partially-ordered phase, we employ an extension of<br />
the Yo...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80(7) 2011年7月
We report our theoretical results on the emergence of a partially disordered state at zero temperature and its detailed nature in the periodic Anderson model on a triangular lattice at half-filling. The partially disordered state is characterized ...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80(4) 2011年4月
We present our theoretical results on the ground states in the layered triangular-lattice compounds ANiO(2) (A = Na, Li, Ag). To describe the interplay between charge, spin, orbital, and lattice degrees of freedom in these materials, we study a do...
We report the results of our theoretical and numerical study on electronic and transport properties of fermion systems with charge frustration. We consider an extended Falicov-Kimball model in which itinerant spinless fermions interact repulsively...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 79(12) 2010年12月
We have studied the effects of electron correlation on Van Vleck susceptibility (chi vv) in transition metal compounds. A typical crossover behavior is found for the correlation effect on chi vv as sweeping spin orbit interaction, lambda. For a sm...
Tomohiro Yoshida   Masafumi Udagawa   
PHYSICAL REVIEW B 94(6) 2016年8月
We study the collective behavior of Majorana modes in the vortex state of chiral p-wave superconductors. Away from the isolated vortex limit, the zero-energy Majorana states communicate with each other on a vortex lattice, and form a coherent band...