Adjustable Zero Thermal Expansion in Antiperovskite Manganese Nitride

Authors

  • Xiaoyan Song,

    Corresponding author
    1. College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing 100124, China
    • College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing 100124, China.
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  • Zhonghua Sun,

    1. College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing 100124, China
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  • Qingzhen Huang,

    1. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg MD, 20899-6102, USA
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  • Markus Rettenmayr,

    1. Institute of Materials Science and Technology, Metallic Materials, Friedrich-Schiller University of Jena, 07743 Jena, Germany
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  • Xuemei Liu,

    1. College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing 100124, China
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  • Martin Seyring,

    1. Institute of Materials Science and Technology, Metallic Materials, Friedrich-Schiller University of Jena, 07743 Jena, Germany
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  • Guannan Li,

    1. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg MD, 20899-6102, USA
    2. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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  • Guanghui Rao,

    1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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  • Fuxing Yin

    1. Innovative Materials Engineering Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
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Abstract

original image

A universal mechanism that controls the zero thermal expansion (ZTE) behavior of the antiperovskite manganese nitrides is discovered. Modulating the Mn occupancy at its lattice sites leads to a drastic change in the thermal expansion behavior. The Mn site occupancy can be reduced by nanostructuring the material, generating a form of “giant” ZTE.

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