Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Realization of the anisotropic XY model in a Tb(III)-W(V) chain compound   We present evidence of 1D S=1/2 anisotropic XY ferromagnetism in the
paramagnetic phase of the cyanido-bridged chain complex
[Tb(pzam)3(H2O)M(CN)8]H2O, with M=W(V), based upon the measurement of the
specific heat, the uniform susceptibility and the magnetization curve on a
powder sample. Both the specific heat and the susceptibility exhibit a
transition peak to long-range ferromagnetism, mediated by the residual
interchain couplings, at a critical temperature Tc=1.15 K. Yet in the
temperature range T > Tc the specific heat exhibits a broad Schottky anomaly
which can be very well fitted by the exact result for the 1D S=1/2 XY model
with strong anisotropy in the XY plane (Jx = 1.89 K, Jy=2Jx). For the analysis
of the susceptibility and magnetization, not directly accessible theoretically
via the exact solution of the XY model, we resort to numerically exact quantum
Monte Carlo simulations. Very good agreement is found between the powder-sample
data and the Monte Carlo data using an effective average g-factor.

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The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
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The categories of this paper are: adap-org