Abstract
The charge excitations in Quantum Hall (QH) ferromagnets realized in a symmetric quantum well (QW) were studied. It was shown that easy-plane and easy-axis ferromagnetism occurs for ν = 3 and 4. Activation energy measurements revealed a striking difference between the easy-plane and easy-axis systems in the limit of zero single-particle gap.
| Original language | English |
|---|---|
| Article number | 196801 |
| Pages (from-to) | 196801/1-196801/4 |
| Journal | Physical Review Letters |
| Volume | 87 |
| Issue number | 19 |
| Publication status | Published - 2001 Nov 5 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)