| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Effect of Quench Treatment on Fe/Mo Order and Magnetic Properties of Double Perovskite Sr$_{2}$FeMoO$_{6}$ |
| Yan-Chun Hu1,2**, Ya-Wen Cui1,2, Xian-Wei Wang1,2, Yi-Pu Liu1,2 |
1College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007
2Henan Province Key Laboratory of Photovoltaic Materials, Xinxiang 453007
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| Cite this article: |
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Yan-Chun Hu, Ya-Wen Cui, Xian-Wei Wang et al 2016 Chin. Phys. Lett. 33 026101 |
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Abstract A quench-treatment technique is used to prepare a high-quality polycrystalline sample of double perovskite Sr$_{2}$FeMoO$_{6}$ (SFMO). X-ray powder diffraction analysis reveals that the sample has a single phase and exhibits I4/m symmetry. The cation order $\eta$ of the sample increases to 98.9(2)% from 94.2(3)%, which is prepared by the traditional sol-gel method. The initial magnetization isotherm of the sample is detected at 300 K. Unit-cell magnetization for the current sample is 1.332 $\mu_{\rm B}$ at 300 K, and the one for the traditional sol-gel method sample is 0.946 $\mu_{\rm B}$. Unit-cell magnetization is enhanced to 40.80% by the quench-treatment technique. Quench treatment is an effective method of enhancing the Fe/Mo order and magnetic properties of double perovskite SFMO.
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Received: 19 August 2015
Published: 26 February 2016
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| PACS: |
61.05.cp
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(X-ray diffraction)
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61.50.-f
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(Structure of bulk crystals)
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85.70.Li
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(Other magnetic recording and storage devices (including tapes, disks, And drums))
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85.80.Jm
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(Magnetoelectric devices)
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