The Exact correlation length of the antiferromagnetic d = (2+1) Heisenberg model at low temperatures - INSPIRE

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The Exact correlation length of the antiferromagnetic d = (2+1) Heisenberg model at low temperatures

Nov, 1990

5 pages

Published in:

Phys.Lett.B 268 (1991) 231-235

Published: 1991

DOI:

10.1016/0370-2693(91)90809-5

Report number:

UCSD-PTH-90-21

View in:

ADS Abstract Service

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Abstract: (Elsevier)

The temperature dependence of the correlation length is predicted to be ξ(T)= 1 8 e( h ̵ c/2πF 2 ) exp (2πF 2 /T) [1−0.5T/2πF 2 + O ((T/2πF 2 ) 2 )] . The spin wave velocity c and the parameter F control the low energy behavior of the model as illustrated further on the temperature and volume dependence of the internal energy calculated here up to next-to-leading order.

model: ferromagnet
Heisenberg model
dimension: 3
correlation: length

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