Trimers of MnO                         6                          octahedra and ferrimagnetism of Ba                         4                         NbMn                         3                         O                         12

Loi T. Nguyen; Tai Kong; R. J. Cava

doi:10.1088/2053-1591/ab0695

Trimers of MnO ₆ octahedra and ferrimagnetism of Ba ₄ NbMn ₃ O ₁₂

Loi T. Nguyen, Tai Kong, R. J. Cava

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Ba ₄ NbMn ₃ O ₁₂ is reported, synthesized by a solid state method in air. The crystal structure, determined by performing refinements on room temperature powder x-ray diffraction data by the Rietveld method, consists of Mn ₃ O ₁₂ trimers in the configuration of three face-sharing MnO ₆ octahedra, with the trimers arranged in triangular planes. An effective moment of 4.82 μ _B /f.u is observed and competing antiferromagnetic and ferromagnetic interactions between Mn ions are inferred from the Weiss temperature of -4 K and the ferrimagnetic ordering transition of approximately 42 K. Ba ₄ NbMn ₃ O ₁₂ is a semiconductor with a transport activation energy of 0.37 eV.

Original language	English (US)
Article number	056108
Journal	Materials Research Express
Volume	6
Issue number	5
DOIs	https://doi.org/10.1088/2053-1591/ab0695
State	Published - 2019

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Polymers and Plastics
Metals and Alloys

Keywords

Magnetism
ferrimagnetism
manganese trimer
triangular lattice

Access to Document

10.1088/2053-1591/ab0695

Cite this

Nguyen, L. T., Kong, T., & Cava, R. J. (2019). Trimers of MnO ₆ octahedra and ferrimagnetism of Ba ₄ NbMn ₃ O ₁₂ Materials Research Express, 6(5), Article 056108. https://doi.org/10.1088/2053-1591/ab0695

Nguyen, Loi T. ; Kong, Tai ; Cava, R. J. / Trimers of MnO ₆ octahedra and ferrimagnetism of Ba ₄ NbMn ₃ O ₁₂ In: Materials Research Express. 2019 ; Vol. 6, No. 5.

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title = " Trimers of MnO 6 octahedra and ferrimagnetism of Ba 4 NbMn 3 O 12 ",

abstract = " Ba 4 NbMn 3 O 12 is reported, synthesized by a solid state method in air. The crystal structure, determined by performing refinements on room temperature powder x-ray diffraction data by the Rietveld method, consists of Mn 3 O 12 trimers in the configuration of three face-sharing MnO 6 octahedra, with the trimers arranged in triangular planes. An effective moment of 4.82 μ B /f.u is observed and competing antiferromagnetic and ferromagnetic interactions between Mn ions are inferred from the Weiss temperature of -4 K and the ferrimagnetic ordering transition of approximately 42 K. Ba 4 NbMn 3 O 12 is a semiconductor with a transport activation energy of 0.37 eV.",

keywords = "Magnetism, ferrimagnetism, manganese trimer, triangular lattice",

author = "Nguyen, {Loi T.} and Tai Kong and Cava, {R. J.}",

note = "Publisher Copyright: {\textcopyright} 2019 IOP Publishing Ltd.",

year = "2019",

doi = "10.1088/2053-1591/ab0695",

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journal = "Materials Research Express",

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Nguyen, LT, Kong, T & Cava, RJ 2019, ' Trimers of MnO ₆ octahedra and ferrimagnetism of Ba ₄ NbMn ₃ O ₁₂ ', Materials Research Express, vol. 6, no. 5, 056108. https://doi.org/10.1088/2053-1591/ab0695

Trimers of MnO ₆ octahedra and ferrimagnetism of Ba ₄ NbMn ₃ O ₁₂ . / Nguyen, Loi T.; Kong, Tai; Cava, R. J.
In: Materials Research Express, Vol. 6, No. 5, 056108, 2019.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Trimers of MnO 6 octahedra and ferrimagnetism of Ba 4 NbMn 3 O 12

AU - Nguyen, Loi T.

AU - Kong, Tai

AU - Cava, R. J.

PY - 2019

Y1 - 2019

N2 - Ba 4 NbMn 3 O 12 is reported, synthesized by a solid state method in air. The crystal structure, determined by performing refinements on room temperature powder x-ray diffraction data by the Rietveld method, consists of Mn 3 O 12 trimers in the configuration of three face-sharing MnO 6 octahedra, with the trimers arranged in triangular planes. An effective moment of 4.82 μ B /f.u is observed and competing antiferromagnetic and ferromagnetic interactions between Mn ions are inferred from the Weiss temperature of -4 K and the ferrimagnetic ordering transition of approximately 42 K. Ba 4 NbMn 3 O 12 is a semiconductor with a transport activation energy of 0.37 eV.

AB - Ba 4 NbMn 3 O 12 is reported, synthesized by a solid state method in air. The crystal structure, determined by performing refinements on room temperature powder x-ray diffraction data by the Rietveld method, consists of Mn 3 O 12 trimers in the configuration of three face-sharing MnO 6 octahedra, with the trimers arranged in triangular planes. An effective moment of 4.82 μ B /f.u is observed and competing antiferromagnetic and ferromagnetic interactions between Mn ions are inferred from the Weiss temperature of -4 K and the ferrimagnetic ordering transition of approximately 42 K. Ba 4 NbMn 3 O 12 is a semiconductor with a transport activation energy of 0.37 eV.

KW - Magnetism

KW - ferrimagnetism

KW - manganese trimer

KW - triangular lattice

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Nguyen LT, Kong T, Cava RJ. Trimers of MnO ₆ octahedra and ferrimagnetism of Ba ₄ NbMn ₃ O ₁₂ Materials Research Express. 2019;6(5):056108. doi: 10.1088/2053-1591/ab0695