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Thermal variation in magnetization of measured in an applied field of (a) and (b) . Hysteresis between the FC, FW, and sudden rise in ZFC, FC, FW near are signatures of structural and magnetic transitions, respectively. The influence of magnetic field on the structural transition is evident through the shift observed in (shown in the inset).
Magnetization isotherms measured above and below the magnetic and structural phase transitions in . Some of the low temperature isotherms are shown separately in the upper panel of the figure.
Arrott plots indicating the second order magnetic and first order structural transition in .
Magnetic entropy change associated with the structural and magnetic transition for . A large value of is observed at for magnetic field up to .
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