| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Magnetic Properties of Orthorhombic Perovskite Ho1−xLaxMnO3 |
| WANG Hong-Tao1, ZHOU Tong2, HONG Bo2, TAO Qian2, XU Zhu-An2**
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1Department of Electronics Information, Ningbo University of Technology, Ningbo 315016
2Department of Physics, Zhejiang University, Hangzhou 310027
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| Cite this article: |
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WANG Hong-Tao, ZHOU Tong, HONG Bo et al 2011 Chin. Phys. Lett. 28 027501 |
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Abstract Single phase orthorhombic perovskite Ho1−xLaxMnO3 (x=0.1, 0.15) compounds are successfully synthesized by using a sol−gel method. We find that the orthorhombic perovskite structure of HoMoO3 compound can be stabilized by partial substitution of smaller Ho ion by larger La ion. The magnetic properties of orthorhombic perovskite Ho1−xLaxMnO3 are investigated for the first time. For the x=0.15 sample, a ferromagnetic−like transition is found around T = 130 K, which should correspond to partial FM ordering of Mn3+ magnetic moments. The partial substitution of Ho by La causes a switch of magnetic state of Mn3+ moments from AFM order to FM-like order. Our study indicates that La doping has significant influence on the magnetic structures of Mn ions.
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| Keywords:
75.47.Lx
77.80.-e
75.80.+q
75.30.Kz
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Received: 13 September 2010
Published: 30 January 2011
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| PACS: |
75.47.Lx
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(Magnetic oxides)
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77.80.-e
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(Ferroelectricity and antiferroelectricity)
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75.80.+q
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(Magnetomechanical effects, magnetostriction)
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75.30.Kz
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(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
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