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Journal Article

Phase Transition and Anomalous Low Temperature Ferromagnetic Phase in Pr0.6Sr0.4MnO3 Single Crystals

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Rößler,  S.
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Steglich,  F.
Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Wirth,  S.
Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Rößler, S., Harikrishnan, S., Kumar, C. M. N., Bhat, H. L., Elizabeth, S., Rößler, U. K., et al. (2009). Phase Transition and Anomalous Low Temperature Ferromagnetic Phase in Pr0.6Sr0.4MnO3 Single Crystals. Journal of Superconductivity and Novel Magnetism, 22, 205-208. doi:10.1007/s10948-008-0377-1.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-25A4-4
Abstract
We report on the magnetic and electrical properties of Pr0.6Sr0.4MnO3 single crystals. This compound undergoes a continuous paramagnetic-ferromagnetic transition with a Curie temperature T (C)301 K and a first-order structural transition at T (S)64 K. At T (S), the magnetic susceptibility exhibits an abrupt jump, and a corresponding small hump is seen in the resistivity. The critical behavior of the static magnetization and the temperature dependence of the resistivity are consistent with the behavior expected for a nearly isotropic ferromagnet with short-range exchange belonging to the Heisenberg universality class. The magnetization (M-H) curves below T (S) are anomalous in that the virgin curve lies outside the subsequent M-H loops. The hysteretic structural transition at T (S) as well as the irreversible magnetization processes below T (S) can be explained by phase separation between a high-temperature orthorhombic and a low-temperature monoclinic ferromagnetic phase.