Digitale Medien
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
87 (2000), S. 2520-2525
ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
In this article, we present new formulas to describe the relation between temperature and average spin in a quantum confined system by using a Green's function approach. We focus on a lattice of quantum dots, each of which confines several electrons on the sites of the confined crystal lattice under the influence of an external magnetic field. Our treatment makes use of the Heisenberg model, subject to a transverse magnetic field. We show that at low temperatures, the temperature dependence of magnetic moment differs from a 3/2 power law, and present a unique signature for temperatures approaching or beyond the phase transition temperature. © 2000 American Institute of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.372213
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