Multistep approach to microscopic models for frustrated quantum magnets: the case of the natural mineral azurite

The natural mineral azurite Cu(3)(CO(3))(2)(OH)(2) is a frustrated magnet displaying unusual and controversially discussed magnetic behavior. Motivated by the lack of a unified description for this system, we perform a theoretical study based on density functional theory as well as state-of-the-art...

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Bibliographic Details
Published in:	Physical review letters Vol. 106; no. 21; p. 217201
Main Authors:	Jeschke, Harald, Opahle, Ingo, Kandpal, Hem, Valentí, Roser, Das, Hena, Saha-Dasgupta, Tanusri, Janson, Oleg, Rosner, Helge, Brühl, Andreas, Wolf, Bernd, Lang, Michael, Richter, Johannes, Hu, Shijie, Wang, Xiaoqun, Peters, Robert, Pruschke, Thomas, Honecker, Andreas
Format:	Journal Article
Language:	English
Published:	United States American Physical Society 23-05-2011
Subjects:	Condensed Matter Physics
Online Access:	Get full text
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Summary:	The natural mineral azurite Cu(3)(CO(3))(2)(OH)(2) is a frustrated magnet displaying unusual and controversially discussed magnetic behavior. Motivated by the lack of a unified description for this system, we perform a theoretical study based on density functional theory as well as state-of-the-art numerical many-body calculations. We propose an effective generalized spin-1/2 diamond chain model which provides a consistent description of experiments: low-temperature magnetization, inelastic neutron scattering, nuclear magnetic resonance measurements, magnetic susceptibility as well as new specific heat measurements. With this study we demonstrate that the balanced combination of first principles with powerful many-body methods successfully describes the behavior of this frustrated material.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.106.217201