Fizika Nizkikh Temperatur: Volume 44, Number 11 (November 2018), p. 1470-1474    ( to contents , go back )

Effect of magnetic relaxation on reversal magnetization curves in K0.4[Cr(CN)6][Mn(R/S)-pn](R/S)-pnH0.6 molecular ferrimagnet

R.B. Morgunov1,2 and M.V. Kirman1

1Institute of Problems of Chemical Physics RAS Akad. Semenov Ave., Chernogolovka, Moscow region 142432, Russia

2Federal State Institution of Education Ā«Russian University of TransportĀ» Moscow, 127994, Russia
E-mail: morgunov2005@yandex.ru

Received April 10, 2018, revised May 31, 2018, published online September 26, 2018

Abstract

Series of the reversal magnetization curves of K0.4[Cr(CN)6][Mn(R/S)-pn](R/S)-pnH0.6 chiral molecular magnet was recorded and analyzed. Two maxima were found on the diagram of the First Order Reversal Curves (FORC). Possible contributions of the domain walls and magnetic solitons are discussed. The increase of the temperature from 2 K to 20 K leads to increase the distance between two maxima of the FORC diagram along axis of the interaction magnetic field and to the dominance of domain walls over soliton in the reversal magnetization. The FORC diagram depends on magnetic relaxation of the sample in the stationary magnetic field.

Key words: magnetization reversal, hysteresis, molecular magnets.

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