Magnetic phase diagram of the mixed-valence semiconductor TmSe under multi-extreme () conditions

Abstract: The high-pressure (type-II) antiferromagnetic phase of the mixed-valence semiconductor TmSe has been studied by neutron diffraction at in high magnetic fields. Surprisingly, the phase diagram reveals the existence, above 1.6T, of an AF I phase reminiscent of the ambient-pressure, zero-field structure. This result provides a new opportunity to investigate the relationship between magnetic and electronic structures in Tm monochalcogenides. [Copyright &y& Elsevier]