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

doi:10.1021/acs.inorgchem.5b02677

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 journal › Article › peer-review

24 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 T_N ≈ 20 K and a frustration parameter (|θ|/T_N) of ∼2.16.

Original language	English (US)
Pages (from-to)	1333-1338
Number of pages	6
Journal	Inorganic chemistry
Volume	55
Issue number	3
DOIs	https://doi.org/10.1021/acs.inorgchem.5b02677
State	Published - Feb 1 2016

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "PbMn(IV)TeO6: A New Noncentrosymmetric Layered Honeycomb Magnetic Oxide",

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.",

author = "Kim, \{Sun Woo\} and Zheng Deng and Li, \{Man Rong\} and \{Sen Gupta\}, Arnab and Hirofumi Akamatsu and Venkatraman Gopalan and Martha Greenblatt",

note = "Funding Information: S.W.K., Z.D., M.R.L., and M.G. gratefully acknowledge support from the ARO-434603 grant (DOD-VV911NF-12-1-0172). A.S.G., H.A., and V.G. gratefully acknowledge support from the National Science Foundation MRSEC Center for Nanoscale Science at Penn State through Grant DMR-1420620. S.W.K. thanks Prof. Mark Croft for fruitful discussions and Graeme Gardner for EDX measurements. Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

month = feb,

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doi = "10.1021/acs.inorgchem.5b02677",

language = "English (US)",

volume = "55",

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publisher = "American Chemical Society",

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T1 - PbMn(IV)TeO6

T2 - A New Noncentrosymmetric Layered Honeycomb Magnetic Oxide

AU - Kim, Sun Woo

AU - Deng, Zheng

AU - Li, Man Rong

AU - Sen Gupta, Arnab

AU - Akamatsu, Hirofumi

AU - Gopalan, Venkatraman

AU - Greenblatt, Martha

N1 - Funding Information: S.W.K., Z.D., M.R.L., and M.G. gratefully acknowledge support from the ARO-434603 grant (DOD-VV911NF-12-1-0172). A.S.G., H.A., and V.G. gratefully acknowledge support from the National Science Foundation MRSEC Center for Nanoscale Science at Penn State through Grant DMR-1420620. S.W.K. thanks Prof. Mark Croft for fruitful discussions and Graeme Gardner for EDX measurements. Publisher Copyright: © 2016 American Chemical Society.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - 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.

AB - 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.

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U2 - 10.1021/acs.inorgchem.5b02677

DO - 10.1021/acs.inorgchem.5b02677

M3 - Article

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JO - Inorganic chemistry

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

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