抄録
Time-resolved Kerr rotation spectroscopy under the radio frequency field to depolarize dynamic nuclear polarization reveals the intrinsic spin-relaxation time (T2) and g factor of two-dimensional electrons in a quantum Hall system. Out-of-plane magnetic field increases the spin coherence drastically through the Landau level quantization. T2 is enhanced strongly around odd filling factors where a quantum Hall ferromagnet is formed. Collapse of spin coherence and appearance of an anomalous Kerr signal observed around ν=1 are discussed in the relation to the formation of Skyrmions.
| 本文言語 | English |
|---|---|
| 論文番号 | 041304 |
| ジャーナル | Physical Review B - Condensed Matter and Materials Physics |
| 巻 | 78 |
| 号 | 4 |
| DOI | |
| 出版ステータス | Published - 2008 7月 16 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 凝縮系物理学