Memory Behavior of the Planar Hall Effect in Ferromagnetic (Ga, Mn)As/GaAs Superlattices

T. Wosinski, W. Wesela, A. Makosa, T. Figielski, Janusz Sadowski

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

The planar Hall effect (PHE) has been studied in short period (Ga, Mn)As/GaAs superlattices displaying a ferromagnetic interlayer coupling between the magnetic layers. Complex dependence of the PHE on applied magnetic field is explained by taking into account the magnetocrystalline anisotropy of the (Ga, Mn)As layers, which results from biaxial compressive strain in the layers epitaxially grown on GaAs. Two-state behavior of the planar Hall resistance at zero magnetic field provides its usefulness for applications in nonvolatile memory devices. In addition, using an appropriate sequence of applied magnetic fields four different states of the planar Hall resistance, suitable for quaternary memory devices, can be realized owing to the formation of a stable multidomain structure in the Hall bar.
Original languageEnglish
Title of host publicationJournal of Superconductivity and Novel Magnetism
PublisherSpringer
Pages83-86
Volume23
DOIs
Publication statusPublished - 2010
Event5th International Conference on Physics and Applications of Spin-Related Phenomena in Semiconductors - Foz do Iguacu, Brazil
Duration: 2008 Aug 32008 Aug 6

Publication series

Name
Number1
Volume23
ISSN (Print)1557-1947
ISSN (Electronic)1557-1939

Conference

Conference5th International Conference on Physics and Applications of Spin-Related Phenomena in Semiconductors
Country/TerritoryBrazil
CityFoz do Iguacu
Period2008/08/032008/08/06

Subject classification (UKÄ)

  • Natural Sciences
  • Physical Sciences

Free keywords

  • Planar Hall effect
  • Ferromagnetic semiconductors
  • Superlattices
  • devices
  • Memory

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