Field Induced Unusual Magnetic Behavior at Low Temperature in Pr_{0.67}Ca_{0.33}MnO_3

• Authors: M. Pektas , H. Gencer , T. Izgi , V. Kolat , S. Atalay
• Languages of publication: EN

Abstracts

EN

In this study, magnetic properties of Pr_{0.67}Ca_{0.33}MnO_3 compound were investigated in detail. The magnetization versus temperature (M-T) curve showed that this material undergoes a charge order transition at 200 K. A more pronounced FM phase appeared below 56 K. At T = 5 K, a field induced sharp step like magnetisation transition associated with phase separation was observed. However, after application of 7 T magnetic field at 5 K, the magnetic behaviour of sample was changed completely and full FM behaviour was observed. The more interesting is that the sample remains in the FM state and does not retrieve the initial magnetic state until warmed up to charge order transition temperature. Large negative magnetic entropy change (- 26.18 J/(kg K) at 38 K and 5 T) was attributed to step like magnetisation transition.

Keywords

EN

75.47.Lx; 75.30.Kz; 75.30.Sg

Discipline

• 75.30.Sg: Magnetocaloric effect, magnetic cooling(for cryogenics, see 07.20.Mc)
• 75.47.Lx: Magnetic oxides
• 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 125
• Issue: 2
• Pages: 217-219

Dates

published

2014-02

Contributors

author

M. Pektas

• Inonu University, Science and Arts Faculty, Physics Department, 44069 Malatya, Turkey

author

H. Gencer

• Inonu University, Science and Arts Faculty, Physics Department, 44069 Malatya, Turkey

author

T. Izgi

• Inonu University, Science and Arts Faculty, Physics Department, 44069 Malatya, Turkey

author

V. Kolat

• Inonu University, Science and Arts Faculty, Physics Department, 44069 Malatya, Turkey

author

S. Atalay

• Inonu University, Science and Arts Faculty, Physics Department, 44069 Malatya, Turkey

References

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Identifiers

DOI

10.12693/APhysPolA.125.217