Phys. Rev. B 71, 180415(R) (2005) [4 pages]

Unusual structural tuning of magnetism in cuprate perovskites

Abstract

References

Citing Articles (2)

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Jorge Íñiguez^1,2 and Taner Yildirim¹
¹NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
²Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USA

Received 21 March 2005; published 31 May 2005

Understanding the structural underpinnings of magnetism is of great fundamental and practical interest. Se_1−xTe_xCuO₃ solid solutions are model systems for the study of this question, as composition-induced structural changes control their magnetic interactions. Our paper reveals that this structural tuning is associated with the position of the supposedly dummy atoms Se and Te relative to the superexchange (SE) Cu-O-Cu paths, and not with the SE angles as previously thought. We discuss the possible microscopic mechanisms responsible for this surprising effect.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.71.180415

DOI:

10.1103/PhysRevB.71.180415

PACS:

75.10.−b, 71.27.+a, 75.30.Et, 75.80.+q

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Phys. Rev. B 71, 180415(R) (2005) [4 pages]

Unusual structural tuning of magnetism in cuprate perovskites