Magnetic properties of Ni2N

H. Nishihara, K. Suzuki, R. Y. Umetsu, T. Kanomata, T. Kaneko, M. Y. Zhou, M. Tsujikawa, M. Shirai, T. Sakon, T. Wada, Kensei Terashima, S. Imada

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Abstract

A powder sample of body-centered tetragonal Ni2N in a single phase was prepared by a high rate-type triode dc reactive sputtering and the magnetic properties have been reinvestigated. It is confirmed that Ni 2N is not a ferromagnet. However, the material is not a simple paramagnet either and shows a weak spin-glass-like behavior at low temperatures with a freezing temperature of about 8 K. Posible origins of the behavior are discussed. Band-structure calculations are reported to see the stability of the nonmagnetic ground state of bct Ni2N against lattice expansion and appearance of nitrogen vacancies.

Original languageEnglish
Pages (from-to)85-89
Number of pages5
JournalPhysica B: Condensed Matter
Volume449
DOIs
Publication statusPublished - Sep 15 2014
Externally publishedYes

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Keywords

  • Ab initio calculations
  • Spin glass

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Nishihara, H., Suzuki, K., Umetsu, R. Y., Kanomata, T., Kaneko, T., Zhou, M. Y., Tsujikawa, M., Shirai, M., Sakon, T., Wada, T., Terashima, K., & Imada, S. (2014). Magnetic properties of Ni2N. Physica B: Condensed Matter, 449, 85-89. https://doi.org/10.1016/j.physb.2014.05.016