This article is cited in 2 papers

Magnetism

Effect of chirality on the dynamics of domain walls in the molecular ferrimagnet [Mn$^{\mathrm{II}}$(HL-pn)(H$_2$O)] [Mn$^{\mathrm{III}}$(CN)$_6$] $\cdot$ 2H$_2$O

F. B. Mushenok^a, R. B. Morgunov^a, O. V. Koplak^b, M. V. Kirman<sup>a

a</sup> Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia
^b National University of Kyiv

Abstract: The contributions from modes of switching, sliding, creep, and Debye relaxation of pinned domain walls to the low-frequency magnetic properties of the chiral and racemic molecular ferrimagnets [Mn$^{\mathrm{II}}$(HL-pn)(H$_2$O)] [Mn$^{\mathrm{III}}$(CN)$_6$] $\cdot$ 2H$_2$O have been separated. It has been found that the chirality of the atomic and spin structures affects the temperatures of the transitions from the sliding mode to the creep mode and from the creep mode to the mode of Debye relaxation. In the chiral crystals, transitions to the creep and Debye relaxation modes have been observed at temperatures $T$ = 7 and 5 K, respectively. In the racemic crystals, these transitions have been observed at temperatures $T$ = 13 and 9 K, respectively, all other factors being equal.

Received: 28.09.2011

 English version: Physics of the Solid State, 2012, 54:4, 754–760

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