title: Magnetic structure of LaCrO3 perovskite under high pressure from in situ neutron diffraction.
abstract: The temperature-pressure phase diagram for both the crystal and magnetic structures of LaCrO(3) perovskite has been mapped out by in situ neutron-diffraction experiments under pressure. The system offers the opportunity to study the evolution of magnetic order, spin direction, and magnetic moment on crossing the orthorhombic-rhombohedral phase boundary. Moreover, a microscopic model of the superexchange interaction has been developed on the basis of the crystal structure obtained in this work to account for the behavior of T(N) under high pressure.
authors.affiliation: Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712, USA. jszhou@mail.utexas.edu
authors.forename: J-S
authors.initials: JS
authors.lastname: Zhou
authors.forename: J A
authors.initials: JA
authors.lastname: Alonso
authors.forename: A
authors.initials: A
authors.lastname: Muoñz
authors.forename: M T
authors.initials: MT
authors.lastname: Fernández-Díaz
authors.forename: J B
authors.initials: JB
authors.lastname: Goodenough