268 citations · 831 across the 24 of their papers we have counts for
9 papers · 1 filter
Thermally quenched metastability in metal-insulator transitions via elemental substitution
Hiroshi Oike, Yasunori Takahashi, Keisuke Shibuya +5
Thermal quenching inhibits equilibration toward the thermodynamic ground state during phase transitions, revealing metastable phases such as structural glasses and quenched alloys.…
Volatile resistive-switched state in a bulk organic conductor with a sharp metal-insulator transition
Riku Ishii, Ryo Motohashi, Keitaro Tada +6
Volatile resistive switching in correlated-electron systems, characterized by an abrupt resistance decrease under applied current, is crucial for developing next-generation electro…
Metal-insulator transition via control of spin liquidity in a doped Mott insulator
Hiroshi Oike, Kazuya Miyagawa, Hiromi Taniguchi +2
Quantum spin liquid states, in which spins are quantum-mechanically delocalized in direction, have been so far studied for charge-localized Mott insulators arising from strong repu…
Size effects on supercooling phenomena in strongly correlated electron systems: IrTe and -(BEDT-TTF)RbZn(SCN)
H. Oike, M. Suda, M. Kamitani +5
We report that the sample miniaturization of first-order-phase-transition bulk systems causes a greater degree of supercooling. From a theoretical perspective, the size effects can…
Current-induced viscoelastic topological unwinding of metastable skyrmion strings
F. Kagawa, H. Oike, W. Koshibae +5
In the MnSi bulk chiral magnet, magnetic skyrmion strings of 17 nm in diameter appear in the form of a lattice, penetrating the sample thickness, 10-1,000 um. Although such a bundl…
Quenching of charge and spin degrees of freedom in condensed matter
Fumitaka Kagawa, Hiroshi Oike
Electrons in condensed matter have internal degrees of freedom, such as charge, spin and orbital, leading to various forms of ordered states through phase transitions. However, in…