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Ti3CrCu4: A possible 2-D ferromagnetic spin fluctuating system

TitleTi3CrCu4: A possible 2-D ferromagnetic spin fluctuating system
Publication TypeJournal Article
Year of Publication2016
AuthorsDhar, SK, Provino, A, Manfrinetti, P, Kulkarni, R, Goyal, N, Paudyal, D
JournalAip Advances
Volume6
Pagination055817
Date Published05
Type of ArticleArticle; Proceedings Paper
ISBN Number2158-3226
Accession NumberWOS:000377962500130
Keywordsdiffraction, electron, Materials Science, metals, physics, Technology - Other Topics
Abstract

urie temperature theta(P) (below 7 K) and a temperature independent chi(0) = 6.7 x 10(-4) emu/mol. The magnetization at 1.8 K increases rapidly with field nearly saturating to 0.2 mu(B)/f.u. The zero field heat capacity C/T shows an upturn below 7 K (similar to 190 mJ/mol K-2 at similar to 0.1K) which is suppressed in applied magnetic fields and interpreted as suggesting the presence of spin fluctuations. The resistivity at low temperatures shows non-Fermi liquid behavior. Overall, the experimental data thus reveal an unusual magnetic state in Ti3CrCu4, which likely has its origin in the layered nature of the Cr sub-lattice and ferromagnetic spin fluctuations. Density functional theoretical calculations reveal a sharp Cr density of states peak just above the Fermi level, indicating the propensity of Ti3CrCu4 to become magnetic. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

DOI10.1063/1.4943922
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Alternate JournalAIP Adv.