Switching off the magnetic exchange coupling by quantum resonances

Ching Hao Chang, Tzay Ming Hong

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We clarify the role of quantum-well states in magnetic trilayer systems of the majority carrier in the ferromagnetic configuration and all carriers in the antiferromagnetic configuration. In addition to numerical and analytic calculations, heuristic pictures are provided to explain the effects of a capping layer and side-layer modulation in recent experiments. This immediately offers individual answers to two unexplained subtle findings in experiments and band-structure calculations. Furthermore, it allows a more flexible tuning of or even a turning off of the interlayer exchange coupling.

Original languageEnglish
Article number214415
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number21
DOIs
Publication statusPublished - 2012 Jun 13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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