The Library
Interfacial and bulk polaron masses in Zn1−xMgxO/ZnO heterostructures examined by terahertz time-domain cyclotron spectroscopy
Tools
Lloyd-Hughes, James, Failla, Michele, Ye, J., Jones, S. P. P., Teo, K. L. and Jagadish, C. (2015) Interfacial and bulk polaron masses in Zn1−xMgxO/ZnO heterostructures examined by terahertz time-domain cyclotron spectroscopy. Applied Physics Letters, 106 (20). 202103. doi:10.1063/1.4921469 ISSN 0003-6951.
PDF
WRAP_px-140117-paperonline.pdf - Accepted Version - Requires a PDF viewer. Download (870Kb) |
|
PDF
WRAP_1%2E4921469.pdf - Published Version Embargoed item. Restricted access to Repository staff only - Requires a PDF viewer. Download (767Kb) |
Official URL: http://dx.doi.org/10.1063/1.4921469
Abstract
The cyclotron resonance of polarons in Zn1−xMgxO/ZnO heterostructures (with 0.15<x<0.220.15<x<0.22) was studied by terahertz time-domain spectroscopy. Low-temperature magnetoconductivity spectra of the 2D electron gas at the Zn1−xMgxO/ZnO interface determined the polaron density, mass, and scattering rate. The cyclotron mass of 2D polarons was found to increase significantly with magnetic field B from 0.24 me at B = 2 T to 0.37 me at B = 7.5 T. A nonlinear cyclotron frequency with B was also observed for 3D polarons in ZnO. The findings are discussed in the context of polaron mass renormalization driven by the electron-LO-phonon and electron-acoustic phonon interactions.
Item Type: | Journal Article | ||||||
---|---|---|---|---|---|---|---|
Subjects: | Q Science > QC Physics | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
Library of Congress Subject Headings (LCSH): | Polarons, Terahertz spectroscopy , Cyclotrons | ||||||
Journal or Publication Title: | Applied Physics Letters | ||||||
Publisher: | American Institute of Physics | ||||||
ISSN: | 0003-6951 | ||||||
Official Date: | 20 May 2015 | ||||||
Dates: |
|
||||||
Volume: | 106 | ||||||
Number: | 20 | ||||||
Article Number: | 202103 | ||||||
DOI: | 10.1063/1.4921469 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 17 January 2017 | ||||||
Date of first compliant Open Access: | 17 January 2017 | ||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), Australian Research Council (ARC), Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC) | ||||||
Grant number: | EP/H003444/2 (EPSRC), DP1096918 (ARC), 61322403 and BK20130013 (NSFC) |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year