Phase separation in Eu0.58Sr0.42MnO3 under pressure.

Authors :: Zhang, W.
Liu, G. J.
Sun, J. R.
Yang, L. X.
Yao, L. D.
Li, F. Y.
Liu, Z. X.
Jin, C. Q.
Yu, R. C.
Source :: Journal of Applied Physics; Nov2007, Vol. 102 Issue 9, p093909, 4p, 8 Graphs
Publication Year :: 2007
Abstract: Resistivity measurements of Eu<subscript>0.58</subscript>Sr<subscript>0.42</subscript>MnO<subscript>3</subscript> were carried out at different magnetic fields under ambient pressure and 1 GPa, respectively. The critical temperature T<subscript>C</subscript> of the ferromagnetic metallic state is 128.5 K under 1 GPa and 7 T. The antiferromagnetic insulating phase can be transformed into the ferromagnetic metallic phase by either magnetic field or pressure. Different from the effect of the magnetic field, a plateau is observed in the temperature dependence of the resistivity curve in the lower temperature under pressure, which indicates a phase separation. Magnetic phase diagrams at ambient pressure and 1 GPa are established. [ABSTRACT FROM AUTHOR]