Optically detected cyclotron resonance studies of InxGa1−xNyAs1−y∕GaAs quantum wells sandwiched between type-II AlAs∕GaAs superlattices

2007 ◽  
Vol 101 (7) ◽  
pp. 073705 ◽  
Author(s):  
D. Dagnelund ◽  
I. Vorona ◽  
X. J. Wang ◽  
I. A Buyanova ◽  
W. M. Chen ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Cyclotron Resonance ◽  
Type Ii ◽  
Optically Detected

Optically detected cyclotron resonance of GaAs quantum wells

1993 ◽  
Vol 184 (1-4) ◽  
pp. 159-163 ◽  
Author(s):  
J.G. Michels ◽  
R.J. Warburton ◽  
R.J. Nicholas ◽  
J.J. Harris ◽  
C.T. Foxon
Keyword(s):  
Quantum Wells ◽  
Cyclotron Resonance ◽  
Optically Detected

Optically detected cyclotron resonance of GaAs quantum wells: Effective-mass measurements and offset effects

1992 ◽  
Vol 46 (20) ◽  
pp. 13394-13399 ◽  
Author(s):  
R. J. Warburton ◽  
J. G. Michels ◽  
R. J. Nicholas ◽  
J. J. Harris ◽  
C. T. Foxon
Keyword(s):  
Quantum Wells ◽  
Effective Mass ◽  
Cyclotron Resonance ◽  
Mass Measurements ◽  
Optically Detected

HIGH MAGNETIC FIELD STUDY OF 2D ELECTRON GAS IN AlP

2007 ◽  
Vol 21 (08n09) ◽  
pp. 1466-1470 ◽  
Author(s):  
M. P. SEMTSIV ◽  
S. DRESSLER ◽  
W. T. MASSELINK ◽  
M. GOIRAN ◽  
V. V. RYLKOV ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Conduction Band ◽  
Cyclotron Resonance ◽  
Lattice Mismatch ◽  
Compressive Strain ◽  
Electron Gas ◽  
Quantum Hall ◽  
Growth Direction ◽  
Type Ii ◽  
Shubnikov De Haas Oscillations

We investigate the properties of quasi-two-dimensional electrons in AlP quantum wells by measuring cyclotron resonance, quantum Hall effect, and Shubnikov de Haas oscillations in modulation-doped AlP - GaP type-II quantum wells. We find that in wide AlP wells, the lowest conduction band states are in the Xx and Xy valleys transverse to the growth direction, that the valley degeneracy of this state is gv=2, and that the cyclotron effective mass [Formula: see text]. These results indicate that the biaxial compressive strain resulting from the lattice mismatch of AlP quantum well with respect to the GaP substrate and barrier layers causes the longitudinal Xz valley to be lifted above the transverse Xx and Xy valleys. Further, the two-fold degeneracy of the Xx and Xy valleys indicates that the conduction band minimum in AlP is located exactly at the X-point of the Brillouin zone.

Optically detected cyclotron resonance studies of multisubband quantum wells

1996 ◽  
Vol 29 (12) ◽  
pp. 3089-3095 ◽  
Author(s):  
Y T Dai ◽  
Y H Chang ◽  
T F Lee ◽  
Y F Chen ◽  
F F Fang ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Cyclotron Resonance ◽  
Optically Detected

OPTICALLY-DETECTED MICROWAVE RESONANCE IN InGaAsN/GaAs QUANTUM WELLS AND InAs/GaAs QUANTUM DOTS EMITTING AROUND 1.3 μm

2003 ◽  
Vol 02 (06) ◽  
pp. 469-478 ◽  
Author(s):  
P. G. BARANOV ◽  
N. G. ROMANOV ◽  
V. L. PREOBRAZHENSKI ◽  
A. Yu. EGOROV ◽  
V. M. USTINOV ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Wells ◽  
Cyclotron Resonance ◽  
Multiple Quantum Well ◽  
Dimensional System ◽  
Multiple Quantum ◽  
G Factor ◽  
Quantum Well Structures ◽  
Gaas Structure ◽  
Optically Detected

Optically-detected magnetic resonance (ODMR) and optically-detected cyclotron resonance (ODCR) were applied to study two types of nanostructures emitting around 1.3 μm: quantum wells with low nitrogen content and InAs / GaAs quantum dots (both isolated and vertically-coupled). ODMR with the axial symmetry (effective g factor |g‖|=3.61 and |g⊥|=0.7) was found in unannealed InGaAsN / GaAs multiple-quantum well structures and ascribed to electrons in the quantum wells; the sign of g factor is suggested to be negative. There is evidence that before annealing the InGaAsN / GaAs structure has properties, which are typical for quantum wells, but after annealing the structure is completely-changed and resembles a quantum-dot-like structure. The effect of cyclotron resonance on the luminescence of InAs quantum dots was found. The observed ODCR seems to belong to a two-dimensional system, such as a heterointerface InAs / GaAs .

Optically detected cyclotron resonance on GaAs/AlxGa1−xAs quantum wells and quantum wires

1995 ◽  
Vol 52 (15) ◽  
pp. 11313-11318 ◽  
Author(s):  
D. M. Hofmann ◽  
M. Drechsler ◽  
C. Wetzel ◽  
B. K. Meyer ◽  
F. Hirler ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Cyclotron Resonance ◽  
Quantum Wires ◽  
Optically Detected
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