Low Temperature Physics: 41, 29 (2015); https://doi.org/10.1063/1.4906314
Fizika Nizkikh Temperatur: Volume 41, Number 1 (January 2015), p. 40-45    ( to contents , go back )

Competition of the Peierls relief and structural defects in damping the domain walls in [Mn{(R/S)-pn}]2[Mn{(R/S)-pn}2(H2O)][Cr(CN)6]2 ferrimagnet

A.D. Talantcev1, О.V. Koplak1, М.V. Kirman1, and R.B. Morgunov1,2

1Institute of Problems of Chemical Physics, Russian Academy of Sciences Academician Semenov Ave. 1, Chernogolovka 142432, Russia

2Московский государственный гуманитарный университет им. М.А. Шолохова ул. Верхняя Радищевская, 16-18, г. Москва, 109240, Россия
E-mail: morgunov2005@yandex.ru
pos Анотація:

Received August 18, 2014

Abstract

The [Mn{(R/S)-pn}]2[Mn{(R/S)-pn}2(H2O)] [Cr(CN)6]2 molecular ferrimagnet exhibits an inverse sequence of changes in the domain wall motion regimes with increasing temperature in alternative magnetic field of 0.04–1400 Hz frequency. Initiation of the relaxation regime on the background of creep indicates that there are two different systems of the domain walls damping. The threshold amplitude of the alternative magnetic field corresponds to the Peierls relief contribution to the domain wall dynamics as well as the defect contribution usually considered.

PACS: 75.50.Xx Molecular magnets;
PACS: 75.60.Ch Domain walls and domain structure.

Key words: domain walls, Peierls relief, dynamic of magnetic reversal, molecular magnets.

Published online: November 24, 2014

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