Hot Carrier Spin Transport in Ferromagnetic Metals

Authored by: Ron Jansen

Handbook of Spin Transport and Magnetism

Print publication date:  August  2011
Online publication date:  April  2016

Print ISBN: 9781439803776
eBook ISBN: 9781439803783
Adobe ISBN:

10.1201/b11086-12

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Abstract

Spin-dependent transport has been extensively studied in solid-state systems, particularly since the discovery of the giant magnetoresistance effect (see Chapters 4 and 5 in this book). In parallel, the properties of excited electrons in ferromagnetic materials have received significant attention. Such hot electrons, characterized by an energy of more than a few times the thermal energy above the Fermi energy (E F), exhibit spin-dependent transport as well. The aim of this chapter is to describe the fundamental rules and the underlying phenomena that control the spin-dependent transport of hot carriers in ferromagnetic metals. We focus on the study of these phenomena using hybrid structures comprising ferromagnetic metals and semiconductors, where the latter are employed to create the required potential energy landscape for hot-electron transport.

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