PbMn(IV)TeO6: A New Noncentrosymmetric Layered Honeycomb Magnetic Oxide

Sun Woo Kim, Zheng Deng, Man Rong Li, Arnab Sen Gupta, Hirofumi Akamatsu, Venkatraman Gopalan, Martha Greenblatt

研究成果: Contribution to journalArticle査読

16 被引用数 (Scopus)

抄録

PbMnTeO6, a new noncentrosymmetric layered magnetic oxide was synthesized and characterized. The crystal structure is hexagonal, with space group P62m (No. 189), and consists of edge-sharing (Mn4+/Te6+)O6 trigonal prisms that form honeycomb-like two-dimensional layers with Pb2+ ions between the layers. The structural difference between PbMnTeO6, with disordered/trigonal prisms of Mn4+/Te6+, versus the similar chiral SrGeTeO6 (space group P312), with long-range order of Ge4+ and Te6+ in octahedral coordination, is attributed to a difference in the electronic effects of Ge4+ and Mn4+. Temperature-dependent second harmonic generation by PbMnTeO6 confirmed the noncentrosymmetric character between 12 and 873 K. Magnetic measurements indicated antiferromagnetic order at TN ≈ 20 K and a frustration parameter (|θ|/TN) of ∼2.16.

本文言語英語
ページ(範囲)1333-1338
ページ数6
ジャーナルInorganic chemistry
55
3
DOI
出版ステータス出版済み - 2 1 2016
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理化学および理論化学
  • 無機化学

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