Cr-Doped TiSe2 - A Layered Dichalcogenide Spin Glass

Huixia Luo, Jason W. Krizan, Elizabeth M. Seibel, Weiwei Xie, Girija S. Sahasrabudhe, Susanna L. Bergman, Brendan F. Phelan, Jing Tao, Zhen Wang, Jiandi Zhang, R. J. Cava

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We report the magnetic characterization of the Cr-doped layered dichalcogenide TiSe2. The temperature dependent magnetic susceptibilities are typical of those seen in geometrically frustrated insulating antiferromagnets. The Cr moment is close to the spin-only value, and the Curie-Weiss temperatures (θcw) are between -90 and -230 K. Freezing of the spin system, which is glassy, characterized by peaks in the ac and dc susceptibility and specific heat, does not occur until below T/θcw = 0.05. The CDW transition seen in the resistivity for pure TiSe2 is still present for 3% Cr substitution but is absent by 10% substitution, above which the materials are metallic and p-type. Structural refinements, magnetic characterization, and chemical considerations indicate that the materials are of the type Ti1-xCrxSe2-x/2 for 0 ≤ x ≤ 0.6.

Original languageEnglish (US)
Pages (from-to)6810-6817
Number of pages8
JournalChemistry of Materials
Volume27
Issue number19
DOIs
StatePublished - Sep 17 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Cr-Doped TiSe<sub>2</sub> - A Layered Dichalcogenide Spin Glass'. Together they form a unique fingerprint.

  • Cite this

    Luo, H., Krizan, J. W., Seibel, E. M., Xie, W., Sahasrabudhe, G. S., Bergman, S. L., Phelan, B. F., Tao, J., Wang, Z., Zhang, J., & Cava, R. J. (2015). Cr-Doped TiSe2 - A Layered Dichalcogenide Spin Glass. Chemistry of Materials, 27(19), 6810-6817. https://doi.org/10.1021/acs.chemmater.5b03091