Optically Detected Cyclotron Resonance Studies of High Eelectron Mobility AlGaAs/GaAs Structures
نویسندگان
چکیده
منابع مشابه
High-resolution ion cyclotron mobility spectrometry.
A novel ion mobility spectrometry instrument incorporating a cyclotron geometry drift tube is presented. The drift tube consists of eight regions, four curved drift tubes and four ion funnels. Packets of ions are propagated around the drift tube by changing the drift field at a frequency that is resonant with the ion's drift time through each region. The approach trims each packet of ions as it...
متن کاملReflectance-based optically detected resonance studies of neutral and negatively charged donors in GaAsÕAlxGa1ÀxAs quantum wells
We report a reflectance-based optically detected resonance ~ODR! study of neutral and negatively charged donors in GaAs/AlxGa12xAs quantum-well structures. The intensity of the e1h1(1s) excitonic reflectance feature was modulated by resonant absorption of a monochromatic far-infrared ~FIR! laser beam. An externally applied magnetic field was used to bring the internal transitions among various ...
متن کاملLuminescent and Optically Detected Magnetic Resonance Studies of CdS/PVA Nanocomposite
A series of solid nanocomposites containing CdS nanoparticles in polymeric matrix with varied conditions on the interface particle/polymer was fabricated and studied by photoluminescence (PL) and optically detected magnetic resonance (ODMR) methods. The results revealed interface-related features in both PL and ODMR spectra. The revealed paramagnetic centers are concluded to be involved in the ...
متن کاملOptically Detected Terahertz Resonance Spectroscopy of Semiconductor Nanostructures
Optically Detected Terahertz Resonance Spectroscopy of Semiconductor Nanostructures
متن کاملAnomalous magnetotransport and cyclotron resonance of high mobility magnetic 2DHGs in the quantum Hall regime
Low temperature magnetotransport measurements and far infrared transmission spectroscopy are reported in molecular beam epitaxial grown twodimensional hole systems confined in strained InAs quantum wells with magnetic impurities in the channel. The interactions of the free holes spin with the magnetic moment of 5/2 provided by manganese features intriguing localization phenomena and anomalies i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 1995
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.88.990