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Beats of Quantum Oscillations of the Resistance in Two-Subband Electron Systems in Tilted Magnetic Fields. / Bykov, A. A.; Strygin, I. S.; Goran, A. V. и др.
в: JETP Letters, Том 109, № 6, 01.03.2019, стр. 400-405.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Beats of Quantum Oscillations of the Resistance in Two-Subband Electron Systems in Tilted Magnetic Fields
AU - Bykov, A. A.
AU - Strygin, I. S.
AU - Goran, A. V.
AU - Marchishin, I. V.
AU - Nomokonov, D. V.
AU - Bakarov, A. K.
AU - Abedi, S.
AU - Vitkalov, S. A.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - Electron transport in single GaAs quantum wells of widths from 22 to 46 nm with two populated quantum-confinement subbands ES and EAS is investigated at a temperature of T = 4.2 K in tilted magnetic fields B < 2 T. The angle α between the applied magnetic field and the normal to the plane of the structure under study is varied from 0° to 90°. In a perpendicular magnetic field (α = 0), magnetointersubband oscillations with a period determined by the relation ΔSAS = EAS - ES = jħωc, where ωc is the cyclotron frequency and j is a positive integer, are observed in all investigated quantum wells. In tilted fields, the peaks of magnetointersubband oscillations are shifted toward higher fields B cos α. This shift is explained by an increase in the energy splitting ΔSAS with increasing component B sin α. In 46- and 36-nm-wide quantum wells, beats of magnetointersubband oscillations are observed at angles α > 72° and α > 85°, respectively. The origin of this unexpected behavior of magnetointersubband oscillations in tilted magnetic fields is discussed.
AB - Electron transport in single GaAs quantum wells of widths from 22 to 46 nm with two populated quantum-confinement subbands ES and EAS is investigated at a temperature of T = 4.2 K in tilted magnetic fields B < 2 T. The angle α between the applied magnetic field and the normal to the plane of the structure under study is varied from 0° to 90°. In a perpendicular magnetic field (α = 0), magnetointersubband oscillations with a period determined by the relation ΔSAS = EAS - ES = jħωc, where ωc is the cyclotron frequency and j is a positive integer, are observed in all investigated quantum wells. In tilted fields, the peaks of magnetointersubband oscillations are shifted toward higher fields B cos α. This shift is explained by an increase in the energy splitting ΔSAS with increasing component B sin α. In 46- and 36-nm-wide quantum wells, beats of magnetointersubband oscillations are observed at angles α > 72° and α > 85°, respectively. The origin of this unexpected behavior of magnetointersubband oscillations in tilted magnetic fields is discussed.
KW - WELL
KW - SCATTERING
UR - http://www.scopus.com/inward/record.url?scp=85066311432&partnerID=8YFLogxK
U2 - 10.1134/S0021364019060080
DO - 10.1134/S0021364019060080
M3 - Article
AN - SCOPUS:85066311432
VL - 109
SP - 400
EP - 405
JO - JETP Letters
JF - JETP Letters
SN - 0021-3640
IS - 6
ER -
ID: 20342789