A study on the effect of hydrogen in the compounds with ThMn12-type structure

Weihua Mao, Jinbo Yang, Bo Cui, Benpei Cheng, Yingchang Yang, Honglin Du, Baisheng Zhang, Chuntang Ye, Jilian Yang

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The structural and magnetic properties of hydrides with ThMn12-type structure have been studied by means of magnetic measurements, the neutron powder diffraction technique and self-consistent spin-polarized band calculations (LMTO-ASA). We found that the hydrides retain the ThMn12-type structure, but with an increase of unit-cell volume. The neutron diffraction results indicate that hydrogen atoms occupy the interstitial 2b sites. Magnetic measurements carried out on YFe10Mo2, YFe10.5Vx, YFe11Ti and their hydrides show that both the Curie temperature and the saturation magnetization can be enhanced by introducing interstitial hydrogen atoms. Band-structure calculations and spin-fluctuation theory give a fair description of the enhancement of the magnetization and Curie temperature.

Original languageEnglish (US)
Pages (from-to)2611-2616
Number of pages6
JournalJournal of Physics Condensed Matter
Volume10
Issue number12
DOIs
StatePublished - Mar 30 1998

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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    Mao, W., Yang, J., Cui, B., Cheng, B., Yang, Y., Du, H., Zhang, B., Ye, C., & Yang, J. (1998). A study on the effect of hydrogen in the compounds with ThMn12-type structure. Journal of Physics Condensed Matter, 10(12), 2611-2616. https://doi.org/10.1088/0953-8984/10/12/005