Two-subband occupation by 2D electrons in MgZnO/ZnO heterostructures

被引：4

作者：

Solovyev, Victor V. ^{[1
]}

Kukushkin, Igor, V ^{[1
]}

机构：

[1] RAS, Inst Solid State Phys, Chernogolovka 142432, Russia

来源：

APPLIED PHYSICS EXPRESS | 2019年 / 12卷 / 02期

关键词：

INTERSUBBAND SCATTERING; 2ND SUBBAND; MOBILITY;

D O I：

10.7567/1882-0786/aaf786

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate the population of the second quantized subband by the two-dimensional electron system in a MgxZn1-xO/ZnO heterostructure by means of magnetotransport and magnetooptical studies. The second subband is occupied when x= 0.25 and the total electron density is 4.0 x 10(12) cm(-2). The photoluminescence (PL) spectra permit evaluation of the electron density from the characteristic magneto-oscillations of the PL intensity from the second subband. In addition, the electron concentration in the second subband was estimated from the PL linewidth to be around 5 x 10(11)cm(-2), in good agreement with transport data. The energy of the intersubband splitting is quantified at about 27 meV. (C) 2019 The Japan Society of Applied Physics

引用

页数：3

共 24 条

[1] Multisubband Plasmons in Doped ZnO Quantum Wells [J].

Bajo, Miguel Montes ;

Tamayo-Arriola, Julen ;

Hugues, Maxime ;

Ulloa, Jose M. ;

Le Biavan, Nolwenn ;

Peretti, Romain ;

Julien, Francois H. ;

Faist, Jerome ;

Chauveau, Jean-Michel ;

Hierro, Adrian .

PHYSICAL REVIEW APPLIED, 2018, 10 (02)

[2] Zero-field spin splitting in InAs-AlSb quantum wells revisited [J].

Brosig, S ;

Ensslin, K ;

Warburton, RJ ;

Nguyen, C ;

Brar, B ;

Thomas, M ;

Kroemer, H .

PHYSICAL REVIEW B, 1999, 60 (20) :13989-13992

[3] Investigation of high density two-dimensional electron gas in Zn-polar BeMgZnO/ZnO heterostructures [J].

Ding, K. ;

Ullah, M. B. ;

Avrutin, V. ;

Ozgur, U. ;

Morkoc, H. .

APPLIED PHYSICS LETTERS, 2017, 111 (18)

[4]

Falson J, 2015, NAT PHYS, V11, P347, DOI [10.1038/nphys3259, 10.1038/NPHYS3259]

[5] A cascade of phase transitions in an orbitally mixed half-filled Landau level [J].

Falson, Joseph ;

Tabrea, Daniela ;

Zhang, Ding ;

Sodemann, Inti ;

Kozuka, Yusuke ;

Tsukazaki, Atsushi ;

Kawasaki, Masashi ;

von Klitzing, Klaus ;

Smet, Jurgen H. .

SCIENCE ADVANCES, 2018, 4 (09)

[6] A review of the quantum Hall effects in MgZnO/ZnO heterostructures [J].

Falson, Joseph ;

Kawasaki, Masashi .

REPORTS ON PROGRESS IN PHYSICS, 2018, 81 (05)

[7] MgZnO/ZnO heterostructures with electron mobility exceeding 1 x 106 cm2/Vs [J].

Falson, Joseph ;

Kozuka, Yusuke ;

Uchida, Masaki ;

Smet, Jurgen H. ;

Arima, Taka-hisa ;

Tsukazaki, Atsushi ;

Kawasaki, Masashi .

SCIENTIFIC REPORTS, 2016, 6

[8] Magnesium Doping Controlled Density and Mobility of Two-Dimensional Electron Gas in MgxZn1-xO/ZnO Heterostructures [J].

Falson, Joseph ;

Maryenko, Denis ;

Kozuka, Yusuke ;

Tsukazaki, Atsushi ;

Kawasaki, Masashi .

APPLIED PHYSICS EXPRESS, 2011, 4 (09)

[9] THE EFFECT OF 2ND SUBBAND OCCUPATION ON THE THERMOPOWER OF A HIGH MOBILITY GAAS-AL0.33GA0.67AS HETEROJUNCTION [J].

FLETCHER, R ;

HARRIS, JJ ;

FOXON, CT .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1991, 6 (01) :54-58

[10] Interplay of Rashba, Zeeman and Landau splitting in a magnetic two-dimensional electron gas [J].

Gui, YS ;

Becker, CR ;

Liu, J ;

Daumer, V ;

Hock, V ;

Buhmann, H ;

Molenkamp, LW .

EUROPHYSICS LETTERS, 2004, 65 (03) :393-399

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