Neutron Diffraction Investigation of the Atomic and Magnetic
Structures of MnAs at High Pressures

V. P. Glazkov*, D. P. Kozlenko**, K. M. Podurets*,
B. N. Savenko**, and V. A. Somenkov*

* Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182 Russia

** Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980 Russia

e-mail: podurets@isssph.kiae.ru

Received January 30, 2002

Abstract—The atomic and magnetic structures of the MnAs compound are investigated using neutron diffrac-
tion at high pressures up to 38 kbar in the temperature range 15–300 K. It is found that, as the temperature
decreases under high pressure, the MnAs compound undergoes a spin-reorientation transition from the ferro-
magnetic orthorhombic phase to a new phase whose magnetic moment has both the ferromagnetic and antifer-
romagnetic components. The structural and magnetic parameters of the high-pressure phases of the MnAs com-
pound are determined. © 2003 MAIK “Nauka/Interperiodica”.

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.