2 papers
cond-mat.stat-mech2018
Spontaneous symmetry breaking of domain walls in phase-competing regions
Hiroaki Ishizuka, Yasusada Yamada, Naoto Nagaosa
We study the nature of domain walls in an ordered phase in the phase-competing region of two Ising-type order parameters. Considering a two-component theory, we show that the…
cond-mat.stat-mech2003
A Theory of Ferroelectric Phase Transition in SrTiO induced by Isotope Replacement
Yasusada Yamada, Norikazu Todoroki, Seiji Miyashita
A theory to describe the dielectric anomalies and the ferroelectric phase transition induced by oxygen isotope replacement in SrTiO is developed. The proposed model gives consi…