Izvorni znanstveni članak

Molecular field in Pd3Mn

Dubravko Rodić ; Laboratory for Solid State Physics and Radiation Chemistry, “Boris Kidrič”, Institute of Nuclear Sciences, P. 0 . Box 522, 11001 Belgrade, Yugoslavia
Vojislav Spasojević ; Laboratory for Solid State Physics and Radiation Chemistry, “Boris Kidrič”, Institute of Nuclear Sciences, P. 0 . Box 522, 11001 Belgrade, Yugoslavia
Roland Tellgren ; Neutron Research Laboratory, Studwik, Sweden

Sažetak

The crystal structure of Pd3Mn is of the Al3Zr type and belongs to the space group 14/mmm. Below Neel's temperature a colinear antiferromagnetic structure is characterized by the A = ( +, -, -, +) type, the propagation vector k = (0, 0, 1) and four magnetic sublattices. The temperature dependence of magnetization was obtained by neutron scattering following magnetic (100) and nuclear (004) reflections on the sample with the long range order parameter S = 0.88. Below TN = 199 K the molecular field coefficient A = 17000 (is a sum of λff) fits the experimental results. Neel's temperature, as well as the angle between the antiferromagnetic and tetragonal axes, is dependent on the long range order parameter. The TN (S) dependence can be realized by a change of Mn-Mn coordination versus long range order parameter.

Ključne riječi

Hrčak ID:

331481

URI

https://hrcak.srce.hr/331481

Datum izdavanja:

7.5.1989.

Podaci na drugim jezicima: srpski

Posjeta: 344 *