Next Article in Journal
Structural and Electrochemical Investigation during the First Charging Cycles of Silicon Microwire Array Anodes for High Capacity Lithium Ion Batteries
Next Article in Special Issue
Surface Stability and Growth Kinetics of Compound Semiconductors: An Ab Initio-Based Approach
Previous Article in Journal
Solubilization of Hydrophobic Dyes in Surfactant Solutions
Previous Article in Special Issue
“Property Phase Diagrams” for Compound Semiconductors through Data Mining
Open AccessArticle

Room Temperature Ferromagnetic, Anisotropic, Germanium Rich FeGe(001) Alloys

National Institute of Materials Physics, Atomistilor 105b, P.O. Box MG-7, Magurele-Ilfov 077125, Romania
*
Author to whom correspondence should be addressed.
Materials 2013, 6(2), 612-625; https://doi.org/10.3390/ma6020612
Received: 4 December 2012 / Revised: 30 January 2013 / Accepted: 31 January 2013 / Published: 21 February 2013
(This article belongs to the Special Issue Compound Semiconductor Materials)
Ferromagnetic FexGe1−x with x = 2%–9% are obtained by Fe deposition onto Ge(001) at high temperatures (500 °C). Low energy electron diffraction (LEED) investigation evidenced the preservation of the (1 × 1) surface structure of Ge(001) with Fe deposition. X-ray photoelectron spectroscopy (XPS) at Ge 3d and Fe 2p core levels evidenced strong Fe diffusion into the Ge substrate and formation of Ge-rich compounds, from FeGe3 to approximately FeGe2, depending on the amount of Fe deposited. Room temperature magneto-optical Kerr effect (MOKE) evidenced ferromagnetic ordering at room temperature, with about 0.1 Bohr magnetons per Fe atom, and also a clear uniaxial magnetic anisotropy with the in-plane easy magnetization axis. This compound is a good candidate for promising applications in the field of semiconductor spintronics. View Full-Text
Keywords: metal-semiconductor compounds; spintronics; surface magnetism; molecular beam epitaxy; X-ray photoelectron spectroscopy; magneto-optical Kerr effect metal-semiconductor compounds; spintronics; surface magnetism; molecular beam epitaxy; X-ray photoelectron spectroscopy; magneto-optical Kerr effect
Show Figures

Figure 1

MDPI and ACS Style

Lungu, G.A.; Apostol, N.G.; Stoflea, L.E.; Costescu, R.M.; Popescu, D.G.; Teodorescu, C.M. Room Temperature Ferromagnetic, Anisotropic, Germanium Rich FeGe(001) Alloys. Materials 2013, 6, 612-625.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop