The Two-DimensionalS=1Quantum Heisenberg Antiferromagnet at Finite Temperatures
نویسندگان
چکیده
منابع مشابه
On the behaviour of a two-dimensional Heisenberg antiferromagnet at very low temperatures
We present an analytical formula for the ratio of the physical spin correlation length of a two-dimensional Heisenberg antiferromagnet on a square lattice, and the one which is actually computed in numerical simulations. This latter correlation length is deduced from the second moment of the structure factor at the antiferromagnetic momentum Q. We show that the ratio is very close to one, in ag...
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 1998
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsj.67.1130