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Articles by Hiroshi Oike
Low-temperature hysteresis broadening emerging from domain-wall creep dynamics in a two-phase competing system - Communications Materials
Abstract Hysteretic behaviour accompanies any first-order phase transition, forming a basis for many applications. However, its quantitative understanding remains challenging, and even a qualitative understanding of pronounced hysteresis broadening at low temperature, which is often observed in magnetic-field-induced first-order phase transition materials, is unclear.
Kinetic approach to superconductivity hidden behind a competing order
Exploration for superconductivity is one of the research frontiers in condensed matter physics. In strongly correlated electron systems, the emergence of superconductivity is often inhibited by the formation of a thermodynamically more stable magnetic/charge order.
Current-induced viscoelastic topological unwinding of metastable skyrmion strings
We targeted the archetypal skyrmion-hosting material MnSi and planned to write a metastable SkS-L domain in the matrix of a thermodynamically stable conical order to detect the translation of the SkS-L, if it occurred, by probing the Hall voltage at a distant position. In planning how to prepare the metastable SkS-L in the area of interest, we noted that the SkS-L can be created as a metastable state by employing rapid cooling (>100?K?s?1) by way of the thermo-equilibrium SkS-L phase (see Fig.
Anomalous metallic behaviour in the doped spin liquid candidate κ
To assess the spin liquid nature of ?-HgBr in the doped Mott insulator regime, we measured the spin susceptibility ? (Fig. 2a). It is characterized by a linear temperature dependence at high temperatures and a rounded peak at 30–40?K, followed by a sharp decrease, which is consistent with earlier reports16, 17. The behavior of the ?
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