Tatsuo C. Kobayashi

TL;DR: A magnetic-field-induced phase transition of solid oxygen using ultrahigh magnetic fields up to 186 T was reported in this paper, which strongly suggests the reconstruction of the O2 molecular geometry by the magnetic field, which causes that the antiferromagnetic phase collapses and the field induced phase should have an isotropic crystal structure.

TL;DR: In this paper, heat capacity measurements under magnetic fields are carried out on one-dimensional Heisenberg antiferromagnets, a spin-Peierls (SP) and Haldane gap system and the obtained field-temperature phase diagram is in good agreement with previous results of magnetic measurements.

TL;DR: A new phenomenological model describing nonequilibrium superconductivity is proposed which is characterized by the introduction of a quasithermal distribution of phonons with energies of 0--infinity, in fairly good agreement with the experimental results reported by Willemsen and Gray, and Akoh and Kajimura.

TL;DR: In this article, the effects of pressure on the antiferromagnetic long-range ordering in Pr 2 CuO 4- y were studied between 0.25 and 0.75 GPa by neutron diffraction experiments at temperatures down to 12K.

TL;DR: The nuclear spin lattice relaxation time (T 1 ) 7 Li in the heavy fermion system LiV 2 O 4 has been measured under high pressure up to 3.7 GPa.