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cond-mat.str-el2004
Quantum Fluctuation-Induced Phase Transition in S=1/2 XY-like Heisenberg Antiferromagnets on the Triangular Lattice
Shin-ichiro Yoshikawa, Kouichi Okunishi, Makoto Senda +1
The selection of the ground state among nearly degenerate states due to quantum fluctuations is studied for the S=1/2 XY-like Heisenberg antiferromagnets on the triangular lattice…
cond-mat.str-el2004
Frustration-induced eta inversion in the S=1/2 bond-alternating spin chain
Nobuya Maeshima, Kouichi Okunishi, Kiyomi Okamoto +1
We study the frustration-induced enhancement of the incommensurate correlation for a bond-alternating quantum spin chain in a magnetic field, which is associated with a quasi-one-d…