Second-order nature of the spin-reorientation phase transition in SmCrO3

G. Gorodetsky, R. M. Hornreich, S. Shaft, B. Sharon, A. Shaulov, B. M. Wanklyn

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

The spin-reorientation phase transition in SmCrO3 at T33°K is studied using acoustic-velocity and specific-heat measurements. Although the reorientation occurs within a narrow temperature region (1°K) the acoustic data show clearly that the process is a continuous one, involving two second-order phase transitions. All the observed effects, including those induced by externally applied magnetic fields are satisfactorily accounted for using a phenomenological model with magnetoelastic coupling terms. The thermal anomaly associated with the spin reorientation is also observed and used to calculate the uniaxial energy of the chrome spin system.

Original languageEnglish
Pages (from-to)515-521
Number of pages7
JournalPhysical Review B
Volume16
Issue number1
DOIs
StatePublished - 1 Jan 1977

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