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

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1333-1338
Number of pages6
JournalInorganic chemistry
Volume55
Issue number3
DOIs
StatePublished - Feb 1 2016

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Fingerprint Dive into the research topics of 'PbMn(IV)TeO<sub>6</sub>: A New Noncentrosymmetric Layered Honeycomb Magnetic Oxide'. Together they form a unique fingerprint.

  • Cite this

    Kim, S. W., Deng, Z., Li, M. R., Sen Gupta, A., Akamatsu, H., Gopalan, V., & Greenblatt, M. (2016). PbMn(IV)TeO6: A New Noncentrosymmetric Layered Honeycomb Magnetic Oxide. Inorganic chemistry, 55(3), 1333-1338. https://doi.org/10.1021/acs.inorgchem.5b02677