Yusuké Konishi

Threshold Phenomena under Photo Excitation of Spin-crossover Materials with Cooperativity due to Elastic Interactions (2009)

Miyashita, Seiji, Rikvold, Per Arne, Mori, Takashi, Konishi, Yusuké, Nishino, Masamichi, Tokoro, Hiroko

Photo-induced switching from the low-spin state to the high-spin state is studied in a model of spin-crossover materials, in which long-range interactions are induced by elastic distortions due to...

Realization of the mean-field universality class in spin-crossover materials (2007)

Miyashita, Seiji, Konishi, Yusuké, Nishino, Masamichi, Tokoro, Hiroko, Rikvold, Per Arne

In spin-crossover materials, the volume of a molecule changes depending on whether it is in the high-spin (HS) or low-spin (LS) state. This change causes distortion of the lattice. Elastic...

Simple Two-Dimensional Model for the Elastic Origin of Cooperativity among Spin States of Spin-Crossover Complexes (2007)

Nishino, Masamichi, Boukheddaden, Kamel, Konishi, Yusuké, Miyashita, Seiji

We study the origin of the cooperative nature of spin crossover (SC) between low spin (LS) and high spin (HS) states from the view point of elastic interactions among molecules. As the size of each...