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Phys. Rev. Lett. 89, 047202 (2002) [4 pages]

Néel Order in Doped Quasi-One-Dimensional Antiferromagnets

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Sebastian Eggert1, Ian Affleck2 *, and Matthew D. P. Horton3
1Institute of Theoretical Physics, Chalmers University of Technology and Göteborg University, S-412 96 Göteborg, Sweden
2Physics Department, Boston University, Boston, Massachusetts 02215
399 John Street, New York, New York 10038

Received 29 March 2002; published 8 July 2002

We study the Néel temperature of quasi-one-dimensional S  =  1/2 antiferromagnets containing nonmagnetic impurities. We first consider the temperature dependence of the staggered susceptibility of finite chains with open boundary conditions, which shows an interesting difference for even and odd length chains. We then use a mean field theory treatment to incorporate the three-dimensional interchain couplings. The resulting Néel temperature shows a pronounced drop as a function of doping by up to a factor of 5.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.89.047202
DOI: 10.1103/PhysRevLett.89.047202
PACS: 75.10.Jm, 75.20.Hr

* On leave from Canadian Institute for Advanced Research and Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada V6T 1Z1.

See Also

Reply: Sebastian Eggert, Ian Affleck, and Matthew D. Horton, Eggert, Affleck, and Horton Reply:, Phys. Rev. Lett. 90, 089702 (2003)

Reply: A. A. Zvyagin, Comment on “Néel Order in Doped Quasi-One-Dimensional Antiferromagnets”, Phys. Rev. Lett. 90, 089701 (2003)

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