Effect of Optical Spin Injection on Ferromagnetically Coupled Mn Spins in the III-V Magnetic Alloy Semiconductor [Formula presented]

A. Oiwa, Y. Mitsumori, R. Moriya, T. Słupinski, H. Munekata

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We report on the new type of photoinduced magnetization in ferromagnetic [Formula presented] thin films. Optically generated spin-polarized holes change the orientation of ferromagnetically coupled Mn spins and cause a large change in magnetization, being [Formula presented] of the saturation magnetization, without the application of a magnetic field. The memorization effect has also been found as a trace after the photoinduced magnetization. The observed results suggest that a small amount of nonequilibrium carrier spins can cause collective rotation of Mn spins presumably through the [Formula presented] exchange interaction.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Volume88
Issue number13
DOIs
Publication statusPublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Effect of Optical Spin Injection on Ferromagnetically Coupled Mn Spins in the III-V Magnetic Alloy Semiconductor [Formula presented]'. Together they form a unique fingerprint.

Cite this