Spin stiffness and quantum fluctuations inC-type andA-type antiferromagnets
نویسندگان
چکیده
منابع مشابه
Spin stiffness of mesoscopic quantum antiferromagnets.
We study the spin stiffness of a one-dimensional quantum antiferromagnet in the whole range of system sizes L and temperatures T . We show that for integer and halfodd integer spin case the stiffness differs fundamentally in its L and T dependence, and that in the latter case the stiffness exhibits a striking dependence on the parity of the number of sites. Integer spin chains are treated in te...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2002
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.66.094431