Accessing magnetic chalcogenides with solvothermal synthesis: KFeS2 and KFe2S3

Insung Han; Zhelong Jiang; Clarina dela Cruz; Hong Zhang; Huaping Sheng; Ankita Bhutani; Dean J. Miller; Daniel P. Shoemaker

doi:10.1016/j.jssc.2018.01.003

Accessing magnetic chalcogenides with solvothermal synthesis: KFeS₂ and KFe₂S₃

Insung Han, Zhelong Jiang, Clarina dela Cruz, Hong Zhang, Huaping Sheng, Ankita Bhutani, Dean J. Miller, Daniel P. Shoemaker

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16 Scopus citations

Abstract

Semiconducting binary sulfides are often produced with controlled size and shape by solvothermal synthesis using amine solvents. The versatility of this method, however, has not been extended to dense ternary sulfides that include alkali and transition metal ions, which are renowned for their complex magnetic and electronic properties. We report the solvothermal synthesis of the alkali–transition metal sulfides KFeS₂ and KFe₂S₃. The latter compound is not accessible by direct solid-state synthesis. Magnetic susceptibility measurements indicate antiferromagnetic ordering of KFeS₂ and KFe₂S₃, which contain single and double chains of FeS₄ tetrahedra, respectively. Given the ability to access KFe₂S₃ here, further development of this method may lead to isolation of new functional compounds.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	260
DOIs	https://doi.org/10.1016/j.jssc.2018.01.003
State	Published - Apr 2018

Funding

We thank Aram Yoon for experimental assistance L. K. Wagner for helpful discussions. We acknowledge support from the Center for Emergent Superconductivity, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences , under Award No. DE-AC02-98CH1088 . SEM characterization was performed in the Frederick Seitz Materials Research Laboratory Central Research Facilities, University of Illinois. Transmission electron microscopy was carried out in the Electron Microscopy Center in the Center for Nanoscale Materials, an Office of Science user facility supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award No. DE-AC02-06CH11357 .

Funders	Funder number
Office of Basic Energy Sciences
U. S. Department of Energy
US Department of Energy
Office of Science

Keywords

Antiferromagnets
Chalcogenides
Magnetic materials
Neutron scattering
Solvothermal synthesis

Access to Document

10.1016/j.jssc.2018.01.003

Cite this

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title = "Accessing magnetic chalcogenides with solvothermal synthesis: KFeS2 and KFe2S3",

abstract = "Semiconducting binary sulfides are often produced with controlled size and shape by solvothermal synthesis using amine solvents. The versatility of this method, however, has not been extended to dense ternary sulfides that include alkali and transition metal ions, which are renowned for their complex magnetic and electronic properties. We report the solvothermal synthesis of the alkali–transition metal sulfides KFeS2 and KFe2S3. The latter compound is not accessible by direct solid-state synthesis. Magnetic susceptibility measurements indicate antiferromagnetic ordering of KFeS2 and KFe2S3, which contain single and double chains of FeS4 tetrahedra, respectively. Given the ability to access KFe2S3 here, further development of this method may lead to isolation of new functional compounds.",

keywords = "Antiferromagnets, Chalcogenides, Magnetic materials, Neutron scattering, Solvothermal synthesis",

author = "Insung Han and Zhelong Jiang and {dela Cruz}, Clarina and Hong Zhang and Huaping Sheng and Ankita Bhutani and Miller, {Dean J.} and Shoemaker, {Daniel P.}",

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T2 - KFeS2 and KFe2S3

AU - Han, Insung

AU - Jiang, Zhelong

AU - dela Cruz, Clarina

AU - Zhang, Hong

AU - Sheng, Huaping

AU - Bhutani, Ankita

AU - Miller, Dean J.

AU - Shoemaker, Daniel P.

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AB - Semiconducting binary sulfides are often produced with controlled size and shape by solvothermal synthesis using amine solvents. The versatility of this method, however, has not been extended to dense ternary sulfides that include alkali and transition metal ions, which are renowned for their complex magnetic and electronic properties. We report the solvothermal synthesis of the alkali–transition metal sulfides KFeS2 and KFe2S3. The latter compound is not accessible by direct solid-state synthesis. Magnetic susceptibility measurements indicate antiferromagnetic ordering of KFeS2 and KFe2S3, which contain single and double chains of FeS4 tetrahedra, respectively. Given the ability to access KFe2S3 here, further development of this method may lead to isolation of new functional compounds.

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