Advanced finite-temperature Lanczos method for anisotropic spin systems

Hanebaum O, Schnack J (2014)
The European Physical Journal B 87(9).

Journal Article | Published | English

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Abstract
It is virtually impossible to evaluate the magnetic properties of large anisotropic magnetic molecules numerically exactly due to the huge Hilbert space dimensions as well as due to the absence of symmetries. Here we propose to advance the finite-temperature Lanczos method (FTLM) to the case of single-ion anisotropy. The main obstacle, namely the loss of the spin rotational symmetry about the field axis, can be overcome by choosing symmetry related random vectors for the approximate evaluation of the partition function. We demonstrate that now thermodynamic functions for anisotropic magnetic molecules of unprecedented size can be evaluated.
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Hanebaum O, Schnack J. Advanced finite-temperature Lanczos method for anisotropic spin systems. The European Physical Journal B. 2014;87(9).
Hanebaum, O., & Schnack, J. (2014). Advanced finite-temperature Lanczos method for anisotropic spin systems. The European Physical Journal B, 87(9).
Hanebaum, O., and Schnack, J. (2014). Advanced finite-temperature Lanczos method for anisotropic spin systems. The European Physical Journal B 87.
Hanebaum, O., & Schnack, J., 2014. Advanced finite-temperature Lanczos method for anisotropic spin systems. The European Physical Journal B, 87(9).
O. Hanebaum and J. Schnack, “Advanced finite-temperature Lanczos method for anisotropic spin systems”, The European Physical Journal B, vol. 87, 2014.
Hanebaum, O., Schnack, J.: Advanced finite-temperature Lanczos method for anisotropic spin systems. The European Physical Journal B. 87, (2014).
Hanebaum, Oliver, and Schnack, Jürgen. “Advanced finite-temperature Lanczos method for anisotropic spin systems”. The European Physical Journal B 87.9 (2014).
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