Masanori Yamanaka

ORBITAL LIQUID IN PEROVSKITE TRANSITION-METAL OXIDES

We study the effects of the degeneracy of the

NONPERTURBATIVE APPROACH TO LUTTINGER'S THEOREM IN ONE DIMENSION

{e}_{g}

Phase diagram of the S=1/2 quantum spin chain with bond alternation.

orbitals in perovskite transition-metal oxides in the limit of strong repulsive electron-electron interaction. The isospin field is introduced to describe the orbital degrees of freedom and is represented by the boson with a constraint. The dispersion of this boson is flat along

Hidden Order and Dimerization Transition in S=2 Chains

(\ensuremath{\pi}/a,\ensuremath{\pi}{/a,k}_{z})

Random Matrix Theory of Rigidity in Soft Matter

(a

Conductance through a magnetic domain wall in double exchange system

: lattice constant) and the other two equivalent directions. This enables the orbital disordered phase down to low temperatures. Some of the anomalous experiments in the low-temperature ferromagnetic phase of La

Spike Timing Rigidity Is Maintained in Bursting Neurons under Pentobarbital-Induced Anesthetic Conditions

{}_{1\ensuremath{-}x}

Exact ground-state correlation functions of one-dimensional strongly correlated electron models with resonating-valence-bond ground state

Sr

Quantization of Hall Conductance and Stabilization of Flux State in Noncommutative Space

{}_{x}