Study of the spin-orientation type phase transition in SmCrO3

G. Gorodetsky; S. Shaft; A. Shaulof; B. M. Wanklyn; Weizmann Institute Science; Weizmann Institute Science

doi:10.1063/1.30385

Study of the spin-orientation type phase transition in SmCrO3

G. Gorodetsky, S. Shaft, A. Shaulof, B. M. Wanklyn, Weizmann Institute Science, Weizmann Institute Science

Research output: Contribution to journal › Article › peer-review

Abstract

The spin orientation type phase transition in SmCrO3 at T?34°K has been studied by means of bulk magnetization, sound wave propagation and specific heat measurements. The high and low temperature phases belong to Γ4(Cr:GxFz) and Γ2(Cr:GzFx) respectively. We find a reorientation region of ∠1°K with the beginning and the end points corresponding to second order phase transitions. Though common in the orthoferrites, this is the first clear evidence of a continuous spin reorientation in a RCrO3 compound. The continuous nature of the reorientation process is evident from peaks in the a and c axis susceptibilities and the softening of the elastic constant C55 at both ends of the transition region due to a resonant magnetoelastic coupling. From the anomaly in the specific heat, the entropy associated with the spin reorientation is found to be ΔE/R=0.21+/-0.01°K.

Original language	English GB
Pages (from-to)	449-449
Journal	AIP Conference Proceedings
Volume	29
DOIs	https://doi.org/10.1063/1.30385
State	Published - 1 May 1976
Externally published	Yes

Keywords

Spin arrangements in magnetically ordered materials

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http://adsabs.harvard.edu/abs/1976AIPC...29..449G

Cite this

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title = "Study of the spin-orientation type phase transition in SmCrO3",

abstract = "The spin orientation type phase transition in SmCrO3 at T?34°K has been studied by means of bulk magnetization, sound wave propagation and specific heat measurements. The high and low temperature phases belong to Γ4(Cr:GxFz) and Γ2(Cr:GzFx) respectively. We find a reorientation region of ∠1°K with the beginning and the end points corresponding to second order phase transitions. Though common in the orthoferrites, this is the first clear evidence of a continuous spin reorientation in a RCrO3 compound. The continuous nature of the reorientation process is evident from peaks in the a and c axis susceptibilities and the softening of the elastic constant C55 at both ends of the transition region due to a resonant magnetoelastic coupling. From the anomaly in the specific heat, the entropy associated with the spin reorientation is found to be ΔE/R=0.21+/-0.01°K.",

keywords = "Spin arrangements in magnetically ordered materials",

author = "G. Gorodetsky and S. Shaft and A. Shaulof and Wanklyn, {B. M.} and Science, {Weizmann Institute} and Science, {Weizmann Institute}",

year = "1976",

month = may,

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doi = "10.1063/1.30385",

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volume = "29",

pages = "449--449",

journal = "AIP Conference Proceedings",

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TY - JOUR

T1 - Study of the spin-orientation type phase transition in SmCrO3

AU - Gorodetsky, G.

AU - Shaft, S.

AU - Shaulof, A.

AU - Wanklyn, B. M.

AU - Science, Weizmann Institute

PY - 1976/5/1

Y1 - 1976/5/1

N2 - The spin orientation type phase transition in SmCrO3 at T?34°K has been studied by means of bulk magnetization, sound wave propagation and specific heat measurements. The high and low temperature phases belong to Γ4(Cr:GxFz) and Γ2(Cr:GzFx) respectively. We find a reorientation region of ∠1°K with the beginning and the end points corresponding to second order phase transitions. Though common in the orthoferrites, this is the first clear evidence of a continuous spin reorientation in a RCrO3 compound. The continuous nature of the reorientation process is evident from peaks in the a and c axis susceptibilities and the softening of the elastic constant C55 at both ends of the transition region due to a resonant magnetoelastic coupling. From the anomaly in the specific heat, the entropy associated with the spin reorientation is found to be ΔE/R=0.21+/-0.01°K.

AB - The spin orientation type phase transition in SmCrO3 at T?34°K has been studied by means of bulk magnetization, sound wave propagation and specific heat measurements. The high and low temperature phases belong to Γ4(Cr:GxFz) and Γ2(Cr:GzFx) respectively. We find a reorientation region of ∠1°K with the beginning and the end points corresponding to second order phase transitions. Though common in the orthoferrites, this is the first clear evidence of a continuous spin reorientation in a RCrO3 compound. The continuous nature of the reorientation process is evident from peaks in the a and c axis susceptibilities and the softening of the elastic constant C55 at both ends of the transition region due to a resonant magnetoelastic coupling. From the anomaly in the specific heat, the entropy associated with the spin reorientation is found to be ΔE/R=0.21+/-0.01°K.

KW - Spin arrangements in magnetically ordered materials

U2 - 10.1063/1.30385

DO - 10.1063/1.30385

M3 - מאמר

SN - 0094-243X

VL - 29

SP - 449

EP - 449

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

ER -

Study of the spin-orientation type phase transition in SmCrO3

Abstract

Keywords

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