Zhuravlev, A. S. and Van'kov, A. B. and Kulik, L. V. and Kukushkin, I. V. and Kirpichev, V. E. and Smet, J. H. and Von Klitzing, K. and Umansky, V. and Wegscheider, W. (2008) Inelastic light scattering study of the nu=1 quantum Hall ferromagnet. PHYSICAL REVIEW B, 77 (15): 155404. ISSN 1098-0121,
Full text not available from this repository.Abstract
We report on an inelastic light scattering study in the two-dimensional electron system at filling factor nu=1. The energy and the inelastic cross section of the cyclotron spin-flip mode are analyzed. The exchange enhanced electronic g factor in the quantum Hall ferromagnet is measured. In addition to the magnetoplasmon and cyclotron spin-flip modes, inelastic scattering lines associated with spin-singlet and spin-triplet D- complexes are observed. The inelastic light scattering is shown to probe the thermodynamics of the quantum Hall ferromagnet and gives insight into the formation of ferromagnetic order in two dimensions. It is established that at temperatures above the bare Zeeman energy, the ferromagnet breaks up into domains, whose size and number change with temperature. The experimental data allow us to construct a stability diagram of the nu=1 quantum Hall ferromagnet in the temperature versus magnetic field plane.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 2-DIMENSIONAL ELECTRON-GAS; HIGH MAGNETIC-FIELDS; SPIN-FLIP EXCITATIONS; DONOR IMPURITIES; LANDAU-LEVEL; 2 DIMENSIONS; STATES; HETEROJUNCTIONS; RESONANCE; SKYRMIONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Nov 2020 09:11 |
| Last Modified: | 05 Nov 2020 09:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31154 |
Actions (login required)
 |
View Item |
