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Transparency and Room Temperature Ferromagnetism in Diluted Magnetic Polycrystalline Zn₁₋ₓCrₓTe Non-Oxide II-VI Semiconductor Compounds
Journal of Alloys and Compounds
  • Ali Sarikhani
  • Laleh Avazpour
  • Wipula Liyanage
  • Raul Florez
  • Eric W. Bohannan, Missouri University of Science and Technology
  • Dave Satterfield
  • Manashi Nath, Missouri University of Science and Technology
  • Julia E. Medvedeva, Missouri University of Science and Technology
  • Yew San Hor, Missouri University of Science and Technology
Abstract

Polycrystalline Zn1-xCrxTe samples for x = 0.00, 0.05, 0.10, 0.15, 0.18, and 0.20 were synthesized by solid-state reaction, and their physical properties were studied for the purpose of identifying a novel non-oxide transparent diluted magnetic semiconductor (DMS). Their transport properties exhibit semiconducting behavior for low Cr concentrations and become conductors for higher Cr concentration concentrations. Ferromagnetic behavior was observed in Cr-doped ZnTe with Curie temperature Tc increasing as Cr concentration increases. At x = 0.20 Cr concentration, the system has Tc above room temperature, indicating an interesting II-VI ferromagnetic semiconductor. Furthermore, optical transparency in the visible light range was found to be 30-85 % for different Cr concentration concentrations. Also, according to the electrical transport measurement data in this study, the resistivity doesn't exhibit any significant change as the temperature increases for x = 0.20. This consistent resistivity exhibits a possible candidacy for further studies of the sample Zn0.80Cr0.20Te for half-metallic ferromagnetic properties.

Department(s)
Chemistry
Second Department
Physics
Comments

The work was supported in part by a grant from NSF DMR-1255607.

Keywords and Phrases
  • Diluted Magnetic Semiconductor (DMS),
  • Half Metallic Ferromagnetism,
  • Non-Oxide Transparent Conductor,
  • Room Temperature Ferromagnetism,
  • Transition Metal Dichalcogenide (TMD),
  • ZnCrTe
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2022 Elsevier, All rights reserved.
Publication Date
11-30-2022
Publication Date
30 Nov 2022
Disciplines
Citation Information
Ali Sarikhani, Laleh Avazpour, Wipula Liyanage, Raul Florez, et al.. "Transparency and Room Temperature Ferromagnetism in Diluted Magnetic Polycrystalline Zn₁₋ₓCrₓTe Non-Oxide II-VI Semiconductor Compounds" Journal of Alloys and Compounds Vol. 924 (2022) ISSN: 0925-8388
Available at: http://works.bepress.com/julia-medvedeva/88/