BROWSE

Related Scientist

cinap's photo.

cinap
나노구조물리연구단
more info

ITEM VIEW & DOWNLOAD

First-order nature of the spin-reorientation phase transition in SmCr O3

Cited 0 time in webofscience Cited 0 time in scopus
146 Viewed 0 Downloaded
Title
First-order nature of the spin-reorientation phase transition in SmCr O3
Author(s)
Sau, Tusita; Sharma, Shivani; Poonam Yadav; Baumbach, R.; Siegrist, T.; Banerjee, Alok; Lalla, N.P.
Publication Date
2022-08
Journal
Physical Review B, v.106, no.6
Publisher
American Physical Society
Abstract
© 2022 American Physical Society.The ever expected canted antiferromagnetic (CAFM) Pb′n′m:Γ4(Gx,Ay,FZ;FZR) to Pbn′m′:Γ2(Fx,Cy,GZ;FxR, CyR) spin reorientation phase transition (SRPT) has only recently been confirmed through high-resolution time-of-flight neutron scattering studies by Sau et al. [Phys. Rev. B 103, 144418 (2021)10.1103/PhysRevB.103.144418]. Despite several studies on SmCrO3, the nature of its SRPT still remains debatable. In the present study, we revisit the issue through dc M(T) and ac-susceptibility, χac(T), measurements. Repeated cycle field-cooled-cooling and field-cooled-warming dc M(T) measurements clearly expose a temperature point differentiating the regimes of continuous and discontinuous parts of the SRPT. The discontinuous part has a tiny but clear hysteresis in M(T), confirming the first-order nature of the SRPT with supercooling (T∗) and superheating (T∗∗) temperatures to be ∼33 and ∼36K, respectively. The hysteresis in the M(T) is strongly supported by the occurrence of hysteresis in the nondispersing peaks in χac(T), measured using a 3 Oe ac signal amplitude during cooling and heating under zero dc-bias. Below SRPT, the complete reversibility of M(T) and χac(T) confirms the second-order nature of the Sm3+ ordering at TN2, which arises due to independent Sm3+-Sm3+ interaction. Similarly, the absence of hysteresis in M(T) as well as in χac(T), across the paramagnetic to CAFM Γ4 phase transition, proves the second-order nature of this phase transition.
URI
https://pr.ibs.re.kr/handle/8788114/12760
DOI
10.1103/PhysRevB.106.064413
ISSN
2469-9950
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse