Conductivity and incommensurate antiferromagnetism of Fe 1.02Se 0.10Te 0.90 under pressure

N. Katayama, K. Matsubayashi, Y. Nomura, S. Ji, J. Leao, M. A. Green, T. J. Sato, Y. Uwatoko, M. Fujita, K. Yamada, R. Arita, S. H. Lee

Research output: Contribution to journalArticlepeer-review

Abstract

By performing resistivity, bulk susceptibility and neutron diffraction on single crystals of Fe 1.02Se 0.10Te 0.90 under pressure, we show that an external pressure can enhance both conductivity and magnetism simultaneously. Surprisingly, the pressure-induced magnetic order is nearly three-dimensional, and incommensurate along both the c-axis and the a-axis, which is accompanied by a structural phase separation. Our powder neutron diffraction data show that the Fe(Se, Te) 4 tetrahedron becomes more regular under pressure, which is consistent with the enhancement of the metallicity but is counterintuitive to the three-dimensional magnetic order.

Original languageEnglish
Article number37002
JournalEPL
Volume98
Issue number3
DOIs
Publication statusPublished - 2012 May

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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