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Asano S, Niwa K, Lawler KV, Kawaguchi-Imada S, Sasaki T, Hasegawa M. High-Pressure Synthesis of a High-Pressure Phase of MnN Having NiAs-Type Structure. Inorg Chem 2023. [PMID: 37993285 DOI: 10.1021/acs.inorgchem.3c03241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
A novel high-pressure phase of manganese mononitride, NiAs-type MnN, was successfully synthesized through a pressure-induced phase transition from a tetragonal distorted NaCl-type MnN at pressures above approximately 55 GPa. High-pressure experiments, including starting material preparation, were conducted using a laser-heated diamond anvil cell. This result is the first example of a nitride with a structural phase transition from the distorted NaCl-type to the NiAs-type structure. Upon decompression after the phase transition to NiAs-type structure, the NiAs-type MnN underwent a structural change to the distorted NaCl-type phase, indicating the phase transition was reversible. NiAs-type MnN has a higher density and bulk modulus in comparison to the distorted NaCl-type one. The phase transition pressure of MnN is lower than that of oxides, such as FeO and MnO, which show a structural phase transition from a NaCl-type to a NiAs-type structure. It is suggested that this is due to the lattice distortion caused by antiferromagnetic ordering.
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Affiliation(s)
- Shuto Asano
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Ken Niwa
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
- Research Center for Crystalline Materials Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Keith V Lawler
- Nevada Extreme Conditions Laboratory, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States
| | | | - Takuya Sasaki
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Masashi Hasegawa
- Department of Materials Physics, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan
- Research Center for Crystalline Materials Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
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