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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2001, Volume 73, Issue 8, Pages 447–450
(Mi jetpl4369)
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This article is cited in 6 scientific papers (total in 6 papers)
CONDENSED MATTER
A sequence of two ferrotoroidal phase transitions in nickel-bromine boracite Ni$_3$B$_7$O$_{13}$Br
D. G. Sannikov Institute of Cristallography Russian Academy of Sciences, Moscow
Abstract:
The phenomenological theory of a sequence of two second-order phase transitions in Ni-Br boracite is presented. Two different components of the toroidal moment vector $T_i$ are the order parameters of these transitions. Expressions are derived for the temperature dependences of the spontaneous values of $T_i$, polarization $P_i$, and magnetization $M_i$ and the dielectric $\chi_{ij}=dP_i/dE_j$, magnetic $k_{ij}=dM_i/H_j$, and magnetoelectric $\alpha_{ij}=dP_i/dH_j=dM_j/dE_i$ susceptibilities. Some of these susceptibilities display sharp temperature peaks in the vicinity of phase transitions.
Received: 15.12.2000 Revised: 12.03.2001
Citation:
D. G. Sannikov, “A sequence of two ferrotoroidal phase transitions in nickel-bromine boracite Ni$_3$B$_7$O$_{13}$Br”, Pis'ma v Zh. Èksper. Teoret. Fiz., 73:8 (2001), 447–450; JETP Letters, 73:8 (2001), 401–403
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https://www.mathnet.ru/eng/jetpl4369 https://www.mathnet.ru/eng/jetpl/v73/i8/p447
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Abstract page: | 111 | Full-text PDF : | 47 | References: | 1 |
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