Observation of plasma and magnetoplasma resonances of two-dimensional electrons in a single MgZnO/ZnO heterojunction
Abstract
The magnetoluminescence of the two-dimensional electron system in a single Mg_x Zn_(1−x)O/ZnO heterojunction (x = 0.02) at a temperature of 0.3 K in magnetic fields up to 14 T has been studied. The concentration of two-dimensional electrons in the structure under study has been determined from the oscillations of the luminescence intensity as a function of the magnetic field. The value thus obtained is close to the one derived from transport measurements. The resonance corresponding to plasma excitations of two-dimensional electrons has been observed using optical detection of microwave absorption. In a magnetic field, the lower branch of magnetoplasma excitations, which corresponds to the propagation of edge magnetoplasmons in a structure with nearly square geometry, has been observed and investigated.
Additional Information
© Pleiades Publishing, Inc., 2013. Received July 16, 2013. Translated by M. Skorikov. Original Russian Text © V.E. Kozlov, A.B. Van'kov, S.I. Gubarev, I.V. Kukushkin, J. Falson, D. Maryenko, Y. Kozuka, A. Tsukazaki, M. Kawasaki, J.H. Smet, 2013, published in Pis'ma v Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki, 2013, Vol. 98, No. 4, pp. 251–254.Additional details
- Eprint ID
- 102299
- Resolver ID
- CaltechAUTHORS:20200402-144734256
- Created
-
2020-04-02Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field