Preparation of Anomalous Magnetoresistance and Transport Properties of Itinerant Ferromagnet Fe1-xCoxSi
Journal
IEEE Transactions on Magnetics
Journal Volume
51
Journal Issue
11
Pages
1700104
Date Issued
2015
Author(s)
Abstract
DC magnetization, electrical transport, and magnetoresistance (MR) measurements of Fe 1-x Co x Si single crystals with x ≈ 0.7-0.3 are reported. Fe 1-x Co x Siseries presents a typical Stoner band excitation characteristic in the field-dependent magnetization profile. Co-doping (x > 0.3) in the Fe 1-x Co x Si compound shows a semiconductor-to-metal transition. Enhanced positive MR has been observed when ~1/3 of the Fe was substituted with Co, which suggests that the spin density of states in the minor band (semiconductor characteristic) dominates the electronic properties.
Publisher
Institute of Electrical and Electronics Engineers Inc.
Type
journal article