Dependence of effective mass on spin and valley degrees of freedom

T. Gokmen, Medini Padmanabhan, M. Shayegan

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We measure the effective mass (m*) of interacting two-dimensional electrons confined to an AlAs quantum well while we change the conduction-band valley occupation and the spin polarization via the application of strain and magnetic field, respectively. Compared to its band value, m* is enhanced unless the electrons are fully valley- and spin-polarized. Incidentally, in the fully spin- and valley-polarized regime, the electron system exhibits an insulating behavior.

Original languageEnglish (US)
Article number146405
JournalPhysical review letters
Issue number14
StatePublished - Oct 2 2008

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


Dive into the research topics of 'Dependence of effective mass on spin and valley degrees of freedom'. Together they form a unique fingerprint.

Cite this