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Investigating the structure and physical properties of KCrTe2 and (RbK)0.5CrTe2
Christensen, Isabelle Prasad, Karishma
Christensen, Isabelle
Prasad, Karishma
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2025
Type
Abstract
Poster
Poster
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Keywords
Chromium ditelluride,Crystal growth,Cations,Heterostructures,Powder X-ray diffraction,Energy-dispersive x-ray spectroscopy,Spintronics
Subjects (LCSH)
Citation
Christensen, I., Prasad, K., & Wang, J. Investigating the structure and physical properties of KCrTe2 and (RbK)0.5CrTe2. -- FYRE in STEM Showcase, 2025.
Abstract
Chromium ditelluride (CrTe₂) is a layered transition metal dichalcogenide that has ferromagnetic transition above room temperature, making it a promising candidate for spintronic and quantum computing applications. The method for synthesizing 1T-CrTe₂ involves an indirect approach, where potassium is extracted from the precursor compound KCrTe₂. In this study, we investigated the chemical transformation from pristine KCrTe2, A1-xBxCrTe₂(A=Rb, B=Na, K, and x=0.5) to 1T-CrTe₂ and report the synthesis, crystal growth, and characterization. KCrTe₂ is a layered material in which potassium atoms are weakly held between CrTe₂ layers via ionic interactions. We hypothesize that introducing mixed cations could lead to the formation of a heterostructure. Heterostructures can enhance the electronic and magnetic properties of the material by changing the bandgap and allowing charge transfer between layers. The prepared compounds are characterized by Powder X-ray Diffraction (PXRD) and Energy-dispersive X-ray spectroscopy (EDX). These findings demonstrate that altering the stoichiometric ratios affects the crystal structure and physical properties of KCrTe₂ and A1-xBxCrTe₂(A=Rb, B=Na, K, and x=0.5). From a materials chemistry standpoint, this tunability presents a way to enhance properties critical to the development of future spintronic and quantum technologies.
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Description
Poster and abstract presented at the FYRE in STEM Showcase, 2025.
Research project completed at the Department of Chemistry and Biochemistry.
Research project completed at the Department of Chemistry and Biochemistry.
Publisher
Wichita State University
Journal
Book Title
Series
FYRE in STEM 2025