Zobrazeno 1 - 10
of 514
pro vyhledávání: '"Kugler, M."'
Autor:
Kugler, M., Brandl, G., Waizner, J., Janoschek, M., Georgii, R., Bauer, A., Seemann, K., Rosch, A., Pfleiderer, C., Böni, P., Garst, M.
Publikováno v:
Phys. Rev. Lett. 115, 097203 (2015)
A magnetic helix realizes a one-dimensional magnetic crystal with a period given by the pitch length $\lambda_h$. Its spin-wave excitations -- the helimagnons -- experience Bragg scattering off this periodicity leading to gaps in the spectrum that in
Externí odkaz:
http://arxiv.org/abs/1502.06977
Autor:
Korzekwa, K., Gradl, C., Kugler, M., Furthmeier, S., Griesbeck, M., Hirmer, M., Schuh, D., Wegscheider, W., Kuhn, T., Schüller, C., Korn, T., Machnikowski, P.
Publikováno v:
Phys. Rev. B 88, 155303 (2013)
We develop a theoretical description of the spin dynamics of resident holes in a p-doped semiconductor quantum well (QW) subject to a magnetic field tilted from the Voigt geometry. We find the expressions for the signals measured in time-resolved Far
Externí odkaz:
http://arxiv.org/abs/1306.6363
Autor:
Kugler, M., Korzekwa, K., Machnikowski, P., Gradl, C., Furthmeier, S., Griesbeck, M., Hirmer, M., Schuh, D., Wegscheider, W., Kuhn, T., Schüller, C., Korn, T.
Publikováno v:
Phys. Rev. B 84, 085327 (2011)
We investigate spin dynamics of resident holes in a p-modulation-doped GaAs/Al$_{0.3}$Ga$_{0.7}$As single quantum well. Time-resolved Faraday and Kerr rotation, as well as resonant spin amplification, are utilized in our study. We observe that nonres
Externí odkaz:
http://arxiv.org/abs/1105.1338
Autor:
Lechner, V., Golub, L. E., Lomakina, F., Bel'kov, V. V., Olbrich, P., Stachel, S., Caspers, I., Griesbeck, M., Kugler, M., Hirmer, M. J., Korn, T., Schüller, C., Schuh, D., Wegscheider, W., Ganichev, S. D.
We report on the study of the linear and circular magneto-gyrotropic photogalvanic effect (MPGE) in GaAs/AlGaAs quantum well structures. Using the fact that in such structures the Land\'e-factor g* depends on the quantum well (QW) width and has diffe
Externí odkaz:
http://arxiv.org/abs/1011.4433
Autor:
Korn, T., Kugler, M., Griesbeck, M., Schulz, R., Wagner, A., Kubová, M., Gerl, C., Schuh, D., Wegscheider, W., Schüller, C.
For the realisation of scalable solid-state quantum-bit systems, spins in semiconductor quantum dots are promising candidates. A key requirement for quantum logic operations is a sufficiently long coherence time of the spin system. Recently, hole spi
Externí odkaz:
http://arxiv.org/abs/0909.3711
Autor:
Kugler, M., Andlauer, T., Korn, T., Wagner, A., Fehringer, S., Schulz, R., Kubová, M., Gerl, C., Schuh, D., Wegscheider, W., Vogl, P., Schüller, C.
We have investigated spin and carrier dynamics of resident holes in high-mobility two-dimensional hole systems in GaAs/Al$_{0.3}$Ga$_{0.7}$As single quantum wells at temperatures down to 400 mK. Time-resolved Faraday and Kerr rotation, as well as tim
Externí odkaz:
http://arxiv.org/abs/0904.4111
Autor:
Eskildsen, M. R., Kugler, M., Levy, G., Tanaka, S., Jun, J., Kazakov, S. M., Karpinski, J., Fischer, O.
Publikováno v:
Physica C, vol. 385, pp. 169-176 (2003)
We report on the results of scanning tunneling spectroscopy measurements on single crystals of Mg2. Tunneling was performed both parallel and perpendicular to the crystalline c-axis. In the first case, a single superconducting gap (Delta_pi = 2.2 meV
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209345
Autor:
Eskildsen, M. R., Kugler, M., Tanaka, S., Jun, J., Kazakov, S. M., Karpinski, J., Fischer, O .
Publikováno v:
Phys. Rev. Lett. 89, 187003 (2002)
We report scanning tunneling spectroscopy imaging of the vortex lattice in single crystalline MgB2. By tunneling parallel to the c-axis, a single superconducting gap (Delta = 2.2 meV) associated with the pi-band is observed. The vortices in the pi-ba
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207394
We present a detailed study on the behaviour of vortex cores in Bi_2Sr_2CaCu_2O_{8+\delta} using scanning tunneling spectroscopy. The very irregular distribution and shape of the vortex cores imply a strong pinning of the vortices by defects and inho
Externí odkaz:
http://arxiv.org/abs/cond-mat/0002146