411 citations · 1.8k across the 31 of their papers we have counts for
31 papers
Theory of Fractionally-magnetized Quantum Ferromagnet
Isao Maruyama, Shin Miyahara
We present a theory to realize entangled quantum spin states with fractional magnetization. The origin of magnetization reduction is partly emergent antiferromagnetism, that is, sp…
Theory of absorption in a frustrated spin gap system
Shin Miyahara
We achieve a comprehensive understanding of the magnetic excitations observed by electric spin resonance and far-infrared spectroscopy in a frustrated spin gap system ${\rm SrCu_2(…
Direct coupling of ferromagnetic moment and ferroelectric polarization in BiFeO
Shiro Kawachi, Shin Miyahara, Toshimitsu Ito +4
The spin-driven component of electric polarization in a single crystal of multiferroic BiFeO was experimentally investigated in pulsed high magnetic fields up to 41 T. Sequen…
Fractionally quantized Berry phases of magnetization plateaux in spin- Heisenberg multimer chains
Isao Maruyama, Shin Miyahara
We study the fractionally quantized Berry phase, , to characterize local -mer spin structures at magnetization pl…
Successive field-induced transitions in BiFeO around room temperature
Shiro Kawachi, Atsushi Miyake, Toshimitsu Ito +8
The effects of high magnetic fields applied perpendicular to the spontaneous ferroelectric polarization on single crystals of BiFeO were investigated through magnetization, mag…
The Spin State and Spectroscopic Modes of Multiferroic BiFeO3
Randy S. Fishman, Jason T. Haraldsen, Nobuo Furukawa +1
Spectroscopic modes provide the most sensitive probe of the very weak interactions responsible for the properties of the long-wavelength cycloid in the multiferroic phase of \BF be…