Q = 0 order in quantum kagome Heisenberg antiferromagnet
نویسندگان
چکیده
منابع مشابه
Dipolar order by disorder in the classical Heisenberg antiferromagnet on the kagome lattice.
Ever since the experiments which founded the field of highly frustrated magnetism, the kagome Heisenberg antiferromagnet has been the archetypical setting for the study of fluctuation induced exotic ordering. To this day the nature of its classical low-temperature state has remained a mystery: the nonlinear nature of the fluctuations around the exponentially numerous harmonically degenerate gro...
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Selection of the ground state of the kagome-lattice XXZ antiferromagnet by quantum fluctuations is investigated by combining nonlinear spin-wave and real-space perturbation theories. The two methods unanimously favor q=0 over sqrt[3]×sqrt[3] magnetic order in a wide range of the anisotropy parameter 0≤Δ≲0.72. Both approaches are also in accord on the magnitude of the quantum order-by-disorder e...
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The nearest neighbor spin S = 2 antiferromagnet on the kagome lattice has been the focus of extensive theoretical and experimental study because it is a prime candidate for realizing a ground state without antiferromagnetic order. On the experimental side, much attention has focused on the S = 1/2 compound herbertsmithite ZnCu3(OH)6Cl2. It has J ⇡ 170 K and no observed ordering or structural di...
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The Heisenberg model is described. Some of the interesting behavior of Heisenberg antiferromagnets and its behavior as a function of dimension is described. One dimensional systems have no long range order, two dimensional systems order magnetically only at zero temperature, and three dimensional systems have a non-zero critical temperature. Assembling lower dimensional pieces into ladders and ...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2021
ISSN: 0953-8984,1361-648X
DOI: 10.1088/1361-648x/abdc8e