Beating patterns in the Shubnikov-de Haas oscillations originated from spin splitting in In 0.52 Al 0.48 As/In 0.65 Ga 0.35 As heterostructures: Experiment and calculation
| Autor: | Wu Zhou, Yang Zhang, Lixia Cui, Tie Lin, Yiping Zeng, Jianan Chu, L.Y. Shang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Zeeman effect Condensed matter physics Oscillation media_common.quotation_subject Heterojunction 02 engineering and technology Zero field splitting Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Asymmetry Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Magnetic field symbols.namesake Spin splitting 0103 physical sciences symbols Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology Quantum well media_common |
| Zdroj: | Physica E: Low-dimensional Systems and Nanostructures. 83:114-118 |
| ISSN: | 1386-9477 |
| DOI: | 10.1016/j.physe.2016.04.028 |
| Popis: | Shubnikov-de Haas (SdH) oscillation measurements at 1.5 K were carried out for In 0.52 Al 0.48 As/In 0.65 Ga 0.35 As heterostructures with different Si delta-doping concentration and spacer thickness. The dominant zero-magnetic field spin splitting mechanism is attributed to the contribution by the Rashba term due to the structure inversion asymmetry (SIA) in the In 0.65 Ga 0.35 As quantum well. The origin of the beating pattern in the SdH oscillations is investigated through the calculation of the transverse magnetoresistance versus magnetic field B by considering the Zeeman splitting and zero-magnetic field spin splitting in Si delta-doped In 0.65 Ga 0.35 As quantum wells. The good agreement between the theoretical and experimental curves suggest that the origin of beating patterns of the SdH oscillations is due to interplay of Rashba spin splitting, Zeeman splitting and Landau splitting. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect