TY  - JOUR
AU  - Rupprecht, B.
AU  - Hardtdegen, H.
AU  - Schäpers, Thomas
AU  - Heyn, Ch.
AU  - Wilde, M. A.
AU  - Grundler, D.
AU  - Heedt, S.
TI  - Frequency anomaly in the Rashba-effect induced magnetization oscillations of a high-mobility two-dimensional electron system
JO  - Physical review / B
VL  - 87
IS  - 3
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2013-02215
SP  - 035307
PY  - 2013
AB  - With the direct measurement of the quantum oscillatory magnetization M of a two-dimensional electron system (2DES) in an InGaAs/InP asymmetric quantum well we discover a frequency anomaly of the de Haas–van Alphen effect which is not consistent with existing theories on spin-orbit interaction (SOI). Strikingly, the oscillatory magnetoresistance of the same heterostructure, that is, the Shubnikov–de Haas effect conventionally used to explore SOI, does not show the frequency anomaly. This explains why our finding has not been reported for almost three decades. The understanding of the ground state energy of a 2DES is evidenced to be incomplete when SOI is present.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000313547600003
DO  - DOI:10.1103/PhysRevB.87.035307
UR  - https://juser.fz-juelich.de/record/133824
ER  -