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Phys. Rev. Lett. 73, 332–335 (1994)

Susceptibility of the spin 1/2 Heisenberg antiferromagnetic chain

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Sebastian Eggert, Ian Affleck, and Minoru Takahashi
Department of Physics, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
Canadian Institute for Advanced Research, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan

Received 16 March 1994; published in the issue dated 11 July 1994

Highly accurate results are presented for the susceptibility χ(T) of the s=1/2 Heisenberg antiferromagnetic chain for all temperatures, using the Bethe ansatz and field theory methods. After going through a rounded peak, χ(T) approaches its asymptotic zero-temperature value with infinite slope.

© 1994 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.73.332
DOI:
10.1103/PhysRevLett.73.332
PACS:
75.10.Jm
 
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