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Author Taraphder, A. ♦ Laad, M. S. ♦ Craco, L. ♦ Yaresko, A. N.
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-04-24
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Condensed Matter - Strongly Correlated Electrons ♦ Condensed Matter - Materials Science ♦ physics:cond-mat
Abstract The two-dimensional, colossal magnetoresistive system GdI_2 develops an unusual metallic state below its ferromagnetic transition and becomes insulating at low temperatures. It is argued that this geometrically frustrated, correlated poor metal is a possible candidate for a ferromagnetic excitonic liquid. The renormalized Fermi surface supports a further breaking of symmetry to a charge ordered, excitonic solid ground state at lower temperatures via order by disorder mechanism. Several experimental predictions are made to investigate this unique orbitally correlated ground state.
Description Reference: Phys. Rev. Lett. vol. 101, page 136410 (2008)
Educational Use Research
Learning Resource Type Article
Page Count 4


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