Effect of hydrostatic pressure on magnetic phase transition and magnetocaloric properties of ( Sm 0.8 Nd 0.2 ) 0.52 Sr 0.48 MnO 3

We have investigated the effect of hydrostatic pressure ( P ) on ferromagnetic (FM) phase transition and magnetocaloric properties of ( Sm 0.8 Nd 0.2 ) 0.52 Sr 0.48 MnO 3 single crystal. At ambient pressure, the system undergoes a first order FM transition associated with large magnetic entropy chan...

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Bibliographic Details
Published in:Journal of applied physics 2010-06, Vol.107 (11), p.113904-113904-4
Main Authors: Arumugam, S., Sarkar, P., Mandal, P., Murugeswari, A., Matsubayashi, K., Ganguli, C., Uwatoko, Y.
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Summary:We have investigated the effect of hydrostatic pressure ( P ) on ferromagnetic (FM) phase transition and magnetocaloric properties of ( Sm 0.8 Nd 0.2 ) 0.52 Sr 0.48 MnO 3 single crystal. At ambient pressure, the system undergoes a first order FM transition associated with large magnetic entropy change ( Δ S M ) . The temperature distribution of Δ S M exhibits an asymmetric behavior with respect to T C . The application of pressure increases magnetization, shifts the FM transition to higher temperature, and weakens the metamagnetism. As a result, | Δ S M | decreases and its thermal distribution becomes more symmetric as compared to P = 0 .
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3431343