Faculty Publications

Document Type

Article

Journal/Book/Conference Title Title

Physical Review B

Volume

85

Issue

14

First Page

144432-1

Last Page

144432-8

Abstract

We have investigated the low-temperature spin-glasslike phase in the intercalated transition-metal dichalcogenide Mn0.09Ti1.1S2. A departure from Curie–Weiss behavior in the paramagnetic regime indicated the formation of small ferromagnetically correlated clusters. The Vogel–Fulcher law provided an excellent description of relaxation times in the vicinity of the transition, showing that the glasslike phase occurs due to interaction between the clusters. Cole–Cole plots for data close to the transition were linear, which is consistent with a simple exponential distribution of cluster sizes. A Monte Carlo simulation of the dichalcogenide system, including excess self-intercalated Ti ions, gave an exponential cluster-size distribution for a relatively narrow range of concentration values of Mn and Ti ions, values that were consistent with those of the Mn0.09Ti1.1S2 sample. Strong commonality in the relaxation behavior with certain ferroelectric relaxor systems suggests underlying similarity in the microscopic structure of the clusters in both systems, which may be chainlike or quasi-one-dimensional.

Department

Department of Physics

Department

Department of Chemsitry and Biochemistry

Comments

first published in Physical Review B, v. 85 n. 14 (2012), 144432, published by American Physical Society. DOI: 10.1103/PhysRevB.85.144432

Original Publication Date

2012

DOI of published version

10.1103/PhysRevB.85.144432

Repository

UNI ScholarWorks, University of Northern Iowa, Rod Library

Date Digital

2012

Copyright

©2012 P.M. Shand, A.L. Meyer, M. Streicher, A. Wilson, T. Rash, M.W. Roth, T.E. Kidd, and L.H. Strauss. The copyright holder has granted permission for posting.

Language

EN

File Format

application/pdf

Included in

Physics Commons

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