Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Schmidt, M. J."'
Publikováno v:
Phys. Rev. B 90, 155129 (2014)
We show that to understand the orthogonality catastrophe in the half-filled lattice model of spinless fermions with repulsive nearest neighbor interaction and a local impurity in its Luttinger liquid phase one has to take into account (i) the impurit
Externí odkaz:
http://arxiv.org/abs/1409.1671
A methodology for understanding and de- tecting nonconvulsive seizures in individuals with sub- arachnoid hemorrhage is introduced. Specifically, begin- ning with an EEG signal, the power spectrum is esti- mated yielding a multivariate time series wh
Externí odkaz:
http://arxiv.org/abs/1305.7271
Publikováno v:
Phys. Rev. B 79, 241306(R) (2009)
We investigate an effective low energy theory of HgTe quantum wells near their mass inversion thickness in a perpendicular magnetic field. By comparison of the effective band structure with a more elaborated and well-established model, the parameter
Externí odkaz:
http://arxiv.org/abs/0901.0621
Autor:
Oppermann, R., Schmidt, M. J.
This article reviews recent years' progress in the low temperature analysis of standard models of spin glass order such as the Sherrington-Kirkpatrick (SK) model. Applications to CdTe/CdMnTe layered systems and explanation of glassy antiferromagnetic
Externí odkaz:
http://arxiv.org/abs/0707.2883
Publikováno v:
PHYSICAL REVIEW B Volume: 76 Issue: 12 Article Number: 125206 Published: 2007
A numerical technique is developed to solve the Luttinger-Kohn equation for impurity states directly in k-space and is applied to calculate bound hole wave functions in a ferromagnetic (Ga,Mn)As host. The rich properties of the band structure of an a
Externí odkaz:
http://arxiv.org/abs/0704.2028
Autor:
Wenisch, J., Gould, C., Ebel, L., Storz, J., Pappert, K., Schmidt, M. J., Kumpf, C., Schmidt, G., Brunner, K., Molenkamp, L. W.
Publikováno v:
Phys. Rev. Lett. 99, 077201 (2007)
We obtain control of magnetic anisotropy in epitaxial (Ga,Mn)As by anisotropic strain relaxation in patterned structures. The strain in the structures is characterized using sophisticated X-ray techniques. The magnetic anisotropy before patterning of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701479
Autor:
Pappert, K., Schmidt, M. J., Hümpfner, S., Rüster, C., Schott, G. M., Brunner, K., Gould, C., Schmidt, G., Molenkamp, L. W.
Publikováno v:
Phys. rev. Lett. 97, 186402 (2006)
We observe the occurrence of an Efros-Shklovskii gap in (Ga,Mn)As based tunnel junctions. The occurrence of the gap is controlled by the extent of the hole wave-function on the Mn acceptor atoms. Using k.p-type calculations we show that this extent d
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608683
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Akademický článek
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