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Study of the phase transition and charge ordering in single-crystalline Nd1/2Sr1/2MnO3 using x-ray scattering

Du, CH; Ghazi, ME; Hatton, PD; Collins, SP; Murphy, BM; Kim, BG; Cheong, SW

Study of the phase transition and charge ordering in single-crystalline Nd1/2Sr1/2MnO3 using x-ray scattering Thumbnail


Authors

CH Du

ME Ghazi

SP Collins

BM Murphy

BG Kim

SW Cheong



Abstract

We report a sequent phase transition using high-resolution synchrotron x-ray scattering in a single crystal Nd1/2Sr1/2MnO3. By measuring the peak profile of Bragg reflections, upon cooling, we observed an increase in the width of the Bragg reflections around the Curie temperature (252 K) corresponding to the transition from a paramagnetic to a ferromagnetic state. Below approximately 200 K, dramatic changes in the width and integrated intensity were observed. Changes continued until the formation of charge ordering with q = (½,0,0) at TCO = 152 K. This charge ordering was observed to be the first order transition with a large hysteresis width of 10 K. This sequent transition is understood by the formation of different magnetic domains at different temperature ranges as that observed by neutron powder diffraction.

Citation

Du, C., Ghazi, M., Hatton, P., Collins, S., Murphy, B., Kim, B., & Cheong, S. (2008). Study of the phase transition and charge ordering in single-crystalline Nd1/2Sr1/2MnO3 using x-ray scattering. Journal of Applied Physics, 104(2), Article 023517. https://doi.org/10.1063/1.2957070

Journal Article Type Article
Publication Date Jul 1, 2008
Deposit Date Oct 29, 2012
Publicly Available Date Nov 2, 2012
Journal Journal of Applied Physics
Print ISSN 0021-8979
Electronic ISSN 1089-7550
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 104
Issue 2
Article Number 023517
DOI https://doi.org/10.1063/1.2957070
Keywords Curie temperature, Ferromagnetic materials, Ferromagnetic-paramagnetic transitions, Magnetic domains, Magnetic hysteresis, Neodymium compounds, Paramagnetic materials, Strontium compounds, X-ray scattering, ND0.5SR0.5MNO3, LA0.5CA0.5MNO3.

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Copyright Statement
Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Du, C.H. and Ghazi, M.E. and Hatton, P.D. and Collins, S.P. and Murphy, B.M. and Kim, B.G. and Cheong, S.W. (2008) 'Study of the phase transition and charge ordering in single-crystalline Nd1/2Sr1/2MnO3 using x-ray scattering.', Journal of applied physics., 104 (2). 023517 and may be found at http://dx.doi.org/10.1063/1.2957070





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