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APS » Journals » Phys. Rev. B » Volume 68 » Issue 10
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Phys. Rev. B 68, 100401(R) (2003) [4 pages]

Strain selection of charge and orbital ordering patterns in half-doped manganites

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M. J. Calderón
Cavendish Laboratory, Cambridge University, Madingley Road, Cambridge CB3 0HE, United Kingdom

A. J. Millis
Department of Physics, Columbia University, 538 W. 120th Street, New York, New York 10027, USA

K. H. Ahn
Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

Received 19 May 2003; published 2 September 2003

Theoretical and computational results are presented clarifying the role of long-ranged strain interactions in determining the charge and orbital ordering in colossal magnetoresistance manganites. The strain energy contribution is found to be of order 20–30 meV/Mn and in particular stabilizes the anomalous “zigzag chain” order observed in many half-doped manganites.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.68.100401
DOI:
10.1103/PhysRevB.68.100401
PACS:
75.47.Lx
 
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