Zobrazeno 1 - 10
of 152
pro vyhledávání: '"E Batke"'
Publikováno v:
Semiconductor Science and Technology. 35:085011
Autor:
L. Worschech, S. Schmid, Fabian Hartmann, Martin Kamp, Sven Höfling, P. Pfeffer, Gérald Bastard, E. Batke, Georg Knebl
The work was supported by the DFG (project Ka2318/5-1) and the Elite Network of Bavaria within the graduate program “Topological Insulators”. We study the optical tunability of the charge carrier type in InAs/GaSb double quantum wells with its ty
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::662953d2bb655a9437c6cf66d111bf21
https://hdl.handle.net/10023/15511
https://hdl.handle.net/10023/15511
Publikováno v:
Semiconductor Science and Technology. 33:095020
Autor:
S. Issing, J. Geurts, Andrei Pimenov, E. Batke, Y. Vu. Ivanov, C. Ziereis, F. Fuchs, A. A. Mukhin
Publikováno v:
The European Physical Journal B. 73:353-360
A systematic and detailed study of Raman and infrared active lattice excitations in the orthorhombic multiferroic manganite Eu1−xYxMnO3 (0 ≤ x ≤ 0.5) was carried out at room temperature. For the infrared active phonon modes the eigenfrequencies
Publikováno v:
Europhysics Letters (EPL). 68:440-446
Intersubband plasmon modes in a tunneling coupled bilayer system based on a 40nm wide GaAs/Al(0.3)Ga(0.7)As double heterostructure are studied by grating-coupler-assisted far-infrared spectroscopy. Both the charge density and the space symmetry of th
Publikováno v:
Superlattices and Microstructures. 33:249-262
We discuss the high-frequency conductivity of a quasi-two-dimensional multi-component electron system in cyclotron geometry, where electron–electron interactions naturally influence the cyclotron excitation. The high-frequency conductivity is deriv
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 12:662-665
The transition of two-dimensional electron systems (2DES) with intentional disorder in form of a δ-layer doped with beryllium into quantum Hall insulators composed of separate electron droplets is examined by magnetotransport and far-infrared spectr
Publikováno v:
Solid State Communications. 112:387-390
The optical phonon modes of short-period GaAs/AlAs superlattices were investigated by means of far-infrared reflection spectroscopy using the grating coupler technique. Grating couplers provide a wavevector transfer parallel to the layers, enabling u
Publikováno v:
Physica B: Condensed Matter. :494-498
Electron cyclotron resonances in bilayer quasi two-dimensional electron systems are examined in the extreme magnetic quantum limit. The variation of the resonance frequencies with electron density strongly depends on the thickness of the barrier betw
Publikováno v:
Physica B: Condensed Matter. :749-752
Cyclotron resonance of inversion layer electrons in GaAs was studied from liquid helium temperatures up to 110 K for densities smaller than 1011 cm−2. A continuous red shift of the resonance position was observed with increasing temperature. A quan