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Updated: Jan 3, 2026
10:42
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
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New layered chromium chalcogenides CsLiCrSe2, RbLiCrS2 and CsLiCrS2: structures and properties
Xiaoning Sun1, Yanpeng Song, Jun Deng
1Research and Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China. shifengjin@aphy.iphy.ac.cn chenx29@iphy.ac.cn.
Dalton Transactions (Cambridge, England : 2003)
|November 22, 2019
Summary
Researchers synthesized new ThCr2Si2-type chromium chalcogenides, CsLiCrSe2, RbLiCrS2, and CsLiCrS2. These semiconducting materials exhibit a spin-glass state, with transition temperature dependent on chromium concentration.
Area of Science:
- Materials Science
- Solid State Chemistry
- Condensed Matter Physics
Background:
- Exploration of novel quaternary compounds with unique structural and electronic properties.
- Limited understanding of ThCr2Si2-type chromium chalcogenides.
Purpose of the Study:
- To synthesize and characterize new ThCr2Si2-type chromium chalcogenides.
- To investigate the crystal structures and physical properties of CsLiCrSe2, RbLiCrS2, and CsLiCrS2.
- To understand the role of alkali metals and chromium concentration in material properties.
Main Methods:
- Synthesis of quaternary compounds CsLiCrSe2, RbLiCrS2, and CsLiCrS2.
- X-ray diffraction for crystal structure determination (space group I4/mmm, Cr/Li mixed occupancy).
- Resistivity and magnetic measurements on single crystals and powder crystals.
Main Results:
- Successful synthesis of three novel ThCr2Si2-type chromium chalcogenides.
- Compounds exhibit semiconducting behavior and a spin-glass state at low temperatures.
- Spin-glass transition temperature (TS) is positively correlated with chromium concentration.
Conclusions:
- CsLiCrSe2, RbLiCrS2, and CsLiCrS2 are the first reported ThCr2Si2-type chromium chalcogenides.
- These materials display interesting magnetic and electronic properties, including a spin-glass phase.
- The findings highlight the importance of alkali metal size and Cr concentration in tuning material properties.
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