Phase diagram of the integer quantum Hall effect in p-type germanium
- Authors
- Hilke, M; Shahar, D; Song, SH; Tsui, DC; Xie, YH
- Issue Date
- Sep-2000
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW B, v.62, no.11, pp 6940 - 6943
- Pages
- 4
- Journal Title
- PHYSICAL REVIEW B
- Volume
- 62
- Number
- 11
- Start Page
- 6940
- End Page
- 6943
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/29807
- DOI
- 10.1103/PhysRevB.62.6940
- ISSN
- 1098-0121
1550-235X
- Abstract
- We experimentally study the phase diagram of the integer quantized Hall effect, as a function of density and magnetic field. We used a two-dimensional hole system confined in a Ge/SiGe quantum well, where all energy levels are resolved, because the Zeeman splitting is comparable to the cyclotron energy. At low fields and close to the quantum Hall Liquid-to-insulator transition. we observe the Boating up of the lowest energy level due to the disorder broadening, but no floating of any higher levels, rather a merging of these levels into the insulating state. For a given filling factor, only direct transitions between the insulating phase and higher quantum Hall liquids are observed as a function of density. Finally, we observe a peak in the critical resistivity around a filling factor of 1.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/29807)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.