Zobrazeno 1 - 10
of 509
pro vyhledávání: '"Wieser R"'
Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures October 2021 134
Autor:
Wieser, R.
A self-consistent field theory is introduced and used to investigate the thermodynamics and spin dynamics of an $S = 1$ quantum spin system with a magnetic Skyrmion. The temperature dependence of the Skyrmion profile as well as the phase diagram are
Externí odkaz:
http://arxiv.org/abs/1610.03191
Autor:
Wieser, R.
Publikováno v:
Phys. Rev. B 95, 064417 (2017)
The dynamics of a single magnetic Skyrmion in an atomic spin system under the influence of Scanning Tunneling Microscope is investigated by computer simulations solving the Landau-Lifshitz-Gilbert equation. Two possible scenarios are described: manip
Externí odkaz:
http://arxiv.org/abs/1609.06797
Publikováno v:
In Optics Communications 1 November 2020 474
Autor:
Wieser, R.
The classical Landau-Lifshitz equation with damping term has been derived from the time evolution of a quantum mechanical wave function under the assumption of a non-hermitian Hamilton operator. Further, the trajectory of a classical spin $\mathrm{S}
Externí odkaz:
http://arxiv.org/abs/1302.1985
Autor:
Vedmedenko, E. Y., Mikuszeit, N., Stapelfeldt, T., Wieser, R., Potthoff, M., Lichtenstein, A., Wiesendanger, R.
Publikováno v:
Eur. Phys. J. B 80, 331 (2011)
Using exact diagonalization, Monte-Carlo, and mean-field techniques, characteristic temperature scales for ferromagnetic order are discussed for the Ising and the classical anisotropic Heisenberg model on finite lattices in one and two dimensions. Th
Externí odkaz:
http://arxiv.org/abs/1102.3062