Published in

American Institute of Physics, Applied Physics Letters, 24(88), p. 242501

DOI: 10.1063/1.2212066

Links

Tools

Export citation

Search in Google Scholar

Excitation and spin-transport of hot holes in ballistic hole magnetic microscopy

Journal article published in 2006 by E. Haq, T. Banerjee ORCID, M. H. Siekman, J. C. Lodder, R. Jansen
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Orange circle
Published version: archiving restricted
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

A hybrid structure of a ferromagnetic Co/Au/Ni81Fe19 trilayer on p-type silicon is used to probe the excitation of electron-hole pairs in a ferromagnet during inelastic decay of hot electrons and the subsequent spin-dependent transport of the excited holes into the valence band of the p-type Si collector. The hole current is remarkably sensitive to magnetic fields, with a magnetocurrent of up to 250% and, unexpectedly, with a positive sign. We determine effective attenuation lengths and their magnetic field and bias voltage dependence.