From spin flip excitations to the spin susceptibility enhancement of a two-dimensional electron gas

F Perez, C Aku-Leh, D Richards, B Jusserand, L C Smith, D Wolverson, G Karczewski

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

The g-factor enhancement of the spin-polarized two-dimensional electron gas was measured directly over a wide range of spin polarizations, using spin flip resonant Raman scattering spectroscopy on two-dimensional electron gases embedded in Cd1-xMnxTe semimagnetic quantum wells. At zero Raman transferred momentum, the single-particle spin flip excitation, energy Z(*), coexists in the Raman spectrum with the spin flip wave of energy Z, the bare giant Zeeman splitting. We compare the measured g-factor enhancement with recent spin-susceptibility enhancement theories and deduce the spin-polarization dependence of the mass renormalization
Original languageEnglish
Article number026403
JournalPhysical Review Letters
Volume99
Issue number2
DOIs
Publication statusPublished - 12 Jul 2007

Fingerprint

Dive into the research topics of 'From spin flip excitations to the spin susceptibility enhancement of a two-dimensional electron gas'. Together they form a unique fingerprint.

Cite this