Growth and magnetic properties of Fe films on InP(001)
作者： Florin Zavaliche , Wulf Wulfhekel , Jürgen Kirschner
DOI: 10.1103/PHYSREVB.65.245317
关键词: Substrate (electronics) 、 Magnetization 、 Magnetic anisotropy 、 Condensed matter physics 、 Monolayer 、 Nuclear magnetic resonance 、 Materials science 、 Auger electron spectroscopy 、 Ion bombardment 、 Anisotropy
摘要: An investigation of the InP(001) surface and characterization thin Fe films grown on this substrate at $\ensuremath{\approx}150$ $\ensuremath{\approx}300 \mathrm{K}$ are presented. As substrates, highly ordered P-rich $(2\ifmmode\times\else\texttimes\fi{}4)$ reconstructed surfaces obtained by ${\mathrm{Ar}}^{+}$ ion bombardment $\ensuremath{\approx}570 were used. The growth in submonolayer thickness range magnetic properties reported. We observe a uniaxial in-plane anisotropy up to an $\ensuremath{\approx}14$ monolayers, which is related character reconstruction. From magnetization behavior we surface/interface contribution anisotropy, deduced that very small, if any, magnetically dead layers form interface. Auger electron spectroscopy data reveal about one monolayer In segregates top growing film \mathrm{K},$ but does not support strong Fe-InP(001) intermixing, contrast current belief. current-voltage patterned n-InP(001) shows nonrectifying contacts room temperature.
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