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Spontaneous magnetization above TC in polycrystalline La0.7 Ca0.3 MnO3 and La0.7 Ba0.3 MnO3

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posted on 28.09.2017, 12:20 by J.A. Turcaud, A.M. Pereira, K.G. Sandeman, J.S. Amaral, Kelly MorrisonKelly Morrison, A. Berenov, A. Daoud-Aladine, L.F. Cohen
In the present work, spontaneous magnetization is observed in the inverse magnetic susceptibility of La0.7Ca0.3MnO3 and La0.7Ba0.3MnO3 compounds above TC up to a temperature T*. From information gathered from neutron diffraction, dilatometry, and high-field magnetization data, we suggest that T* is related to the transition temperature of the low-temperature (high magnetic field) magnetic phase. In the temperature region between T* and TC, the application of a magnetic field drives the system from the high-temperature to low-temperature magnetic phases, the latter possessing a higher magnetization. © 2014 American Physical Society.

Funding

This work was supported by the UK EPSRC Grant No. EP/G060940/1. K.G.S acknowledges financial support from The Royal Society.

History

School

  • Science

Department

  • Physics

Published in

Physical Review B

Volume

90

Issue

2

Citation

TURCAUD, J.A. ...et al., 2014. Spontaneous magnetization above TC in polycrystalline La0.7 Ca0.3 MnO3 and La0.7 Ba0.3 MnO3. Physical Review B - Condensed Matter and Materials Physics, 90: 024410.

Publisher

© American Physical Society

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2014-07-16

Notes

This paper was accepted for publication in the journal Physical Review B - Condensed Matter and Materials Physics and the definitive published version is available at http://dx.doi.org/10.1103/PhysRevB.90.024410

ISSN

1098-0121

eISSN

1550-235X

Language

en

Article number

024410

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