Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Schotte, K. D."'
Publikováno v:
Euro. Phys. J. B 41 (2004) 395
We introduce new fast canonical local algorithms for discrete and continuous spin systems. We show that for a broad selection of spin systems they compare favorably to the known ones except for the Ising +/-1 spins. The new procedures use discretizat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0409422
The magnetic susceptibility and susceptibility anisotropy of the quasi-binary alloy system Ce(x)La(1-x)Cu(2.05)Si(2) have been studied for low concentration of Ce ions. The single-ion desc ription is found to be valid for x < 0.1. The experimental re
Externí odkaz:
http://arxiv.org/abs/cond-mat/0107227
We develop an efficient method to calculate the third-order corrections to the self-energy of the hole-doped two-dimensional Hubbard model in space-time representation. Using the Dyson equation we evaluate the renormalized spectral function in variou
Externí odkaz:
http://arxiv.org/abs/cond-mat/0010313
Autor:
Loison, D., Schotte, K. D.
Starting from the hypothesis of a second order transition we have studied modifications of the original Heisenberg antiferromagnet on a stacked triangular lattice (STA-model) by the Monte Carlo technique. The change is a local constraint restricting
Externí odkaz:
http://arxiv.org/abs/cond-mat/0001135
Autor:
Loison, D., Schotte, K. D.
Publikováno v:
Euro. Phys. J. B 5 (1998) 735
The nature of the phase transition for the XY stacked triangular antiferromagnet (STA) is a controversial subject at present. The field theoretical renormalization group (RG) in three dimensions predicts a first order transition. This prediction disa
Externí odkaz:
http://arxiv.org/abs/cond-mat/0001134
Publikováno v:
JETP Letters 76 (2000) 337
We study the critical behavior of frustrated systems by means of Pade-Borel resummed three-loop renormalization-group expansions and numerical Monte Carlo simulations. Amazingly, for six-component spins where the transition is second order, both appr
Externí odkaz:
http://arxiv.org/abs/cond-mat/0001105
Publikováno v:
Eur. Phys. J. B15 (2000) 423-434
CsCuCl_3 is a ferromagnetically stacked triangular spin-1/2 antiferromagnet. We discuss models for its zero-temperature magnetization process. The models range from three antiferromagnetically coupled ferromagnetic chains to the full three-dimensiona
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910318
Autor:
Zhou, Y. -K., Schotte, K. D.
Publikováno v:
Phys Rev D 47 (1993) R1281-R1284
As the new results for the massive Thirring model the L-matrix and the algebraic relations for its action angle variables are given. So it is shown most directly that this model which describes self-interacting relativistic Fermions in one-dimensiona
Externí odkaz:
http://arxiv.org/abs/solv-int/9611007
Autor:
Nurdin, W. B., Schotte, K. D.
Publikováno v:
AIP Conference Proceedings; 3/17/2008, Vol. 989 Issue 1, p209-213, 5p, 1 Diagram
Publikováno v:
European Physical Journal B: Condensed Matter; Apr2005, Vol. 44 Issue 3, p309-315, 7p, 2 Graphs