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Related papers: Ab initio study of the interface properties of Fe/…

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Adsorption of Fe on the rutile (110)-surface is investigated by means of {\it ab initio} density functional theory calculations. We discuss the deposition of single Fe atoms, an increasing Fe coverage, as well as the adsorption of small Fe…

Materials Science · Physics 2013-10-30 Anna Gruenebohm , Heike C. Herper , Peter Entel

We use density-functional theory to describe the initial stages of Fe film growth on GaAs(001), focusing on the interplay between chemistry and magnetism at the interface. Four features appear to be generic: (1) At submonolayer coverages, a…

Materials Science · Physics 2009-11-07 Steven C. Erwin , Sung-Hoon Lee , Matthias Scheffler

The structure and dynamical properties of the Fe$_3$Si/GaAs(001) interface are investigated by density functional theory and nuclear inelastic scattering measurements. The stability of four different atomic configurations of the…

Ultra-thin FeAs is of interest both as the active component in the newly identified pnictide superconductors, and in spintronic applications at the interface between ferromagnetic Fe and semiconducting GaAs. Here we use first-principles…

Superconductivity · Physics 2013-05-30 Sinéad M. Griffin , Nicola A. Spaldin

The electronic and magnetic properties of Fe/GaAs(001) magnetic junctions are investigated using first-principles density-functional calculations. Abrupt and intermixed interfaces are considered, and the dependence of charge transfer,…

Other Condensed Matter · Physics 2009-11-11 D. O. Demchenko , Amy Y. Liu

We have performed first principles electronic structure calculations to investigate the structural and magnetic properties of Fe/ZnSe(001) interfaces. Calculations involving full geometry optimizations have been carried out for a broad…

Materials Science · Physics 2016-08-31 B. Sanyal , S. Mirbt

We grow Fe film on (4 by 2)-GaAs(100) at low temperature, (~ 130 K) and study their chemical structure by photoelectron spectroscopy using synchrotron radiation. We observe the effective suppression of As segregation and remarkable…

Materials Science · Physics 2009-11-11 Jae-Min Lee , S. -J. OH , K. J. Kim , S. -U. Yang , J. -H. Kim , J. -S. Kim

Accurate ab-initio pseudopotential calculations within density functional theory in the LDA approximation have been performed for structural properties and stability of ZnSe/GaAs(001) defected heterostructures. There is a strong…

Materials Science · Physics 2011-12-30 A. Stroppa , M. Peressi

SrHfO3 is a potential dielectric material for metal-oxide-semiconductor (MOS) devices. SrHfO3/GaAs interface has attracted attention due to its unique properties. In this paper, the interface properties of (001) SrHfO3/GaAs are investigated…

Materials Science · Physics 2018-02-14 Li-Bin Shi , Xiao-Ming Xiu , Xu-Yang Liu , Kai-Cheng Zhang , Chun-Ran Li , Hai-Kuan Dong

We investigate 1, 2, 3, and 4 monolayers of iron grown on the (001) surface of ZnSe using spin density functional theory, plane-wave expansion, and ultrasoft pseudopotentials. An ideal structure of the interface is plausible due to the very…

Other Condensed Matter · Physics 2007-05-23 H. Dobler , D. Strauch

By performing density functional theory (DFT) and Green's functions calculations, complemented by X-ray Photoemission Spectroscopy, we investigate the electronic structure of Fe/GeTe(111), a prototypical ferromagnetic/Rashba-ferroelectric…

Tailor-made magnetic nanostructures offer a variety of functionalities useful for technological applications. In this work, we explore the possibilities of realizing Fe nanostructures at the interfaces of 2D graphene and h-BN by ab initio…

Materials Science · Physics 2013-10-22 Soumyajyoti Haldar , Pooja Srivastava , Olle Eriksson , Prasenjit Sen , Biplab Sanyal

The implementation of graphene in semiconducting technology requires the precise knowledge about the graphene-semiconductor interface. In our work the structure and electronic properties of the graphene/$n$-Ge(110) interface are…

The direct growth of graphene on semiconducting or insulating substrates might help to overcome main drawbacks of metal-based synthesis, like metal-atom contaminations of graphene, transfer issues, etc. Here we present the growth of…

Materials Science · Physics 2017-07-04 Julia Tesch , Elena Voloshina , Mikhail Fonin , Yuriy Dedkov

Interface magnetism and topological structure of Fe on organic semiconductor film (Alq3) have been studied and compared with Fe film deposited directly on Si (100) substrate. To get information on the diffused Fe layer at the Fe/Alq3…

Using ab-initio calculations within the framework of Density Functional Theory (DFT), atomic structures and electronic properties of MoS2/HfO2 interface are investigated. The impact of interfacial oxygen concentration on the MoS2/HfO2…

Materials Science · Physics 2014-02-10 Santosh KC , Roberto C. Longo , Robert M. Wallace , Kyeongjae Cho

When Fe, which is a typical ferromagnet using d- or f-orbital states, is combined with 2D materials such as graphene, it offers many opportunities for spintronics. The origin of 2D magnetism is from magnetic insulating behaviors, which…

The spin-dependence of the interface resistance between ferromagnetic Fe and InAs is calculated from first-principles for specular and disordered (001) interfaces. Because of the symmetry mismatch in the minority-spin channel, the specular…

Materials Science · Physics 2009-11-07 M. Zwierzycki , K. Xia , P. J. Kelly , G. E. W. Bauer , I. Turek

We determine the stability and properties of interfaces of low-index Au surfaces adhered to TiO2(110), using density functional theory energy density calculations. We consider Au(100) and Au(111) epitaxies on rutile TiO2(110) surface, as…

Materials Science · Physics 2012-02-28 Min Yu , Dallas R. Trinkle

We study the growth of the Fe films on GaAs(100) at a low temperature, 140 K, by $in$-$situ$ UHV x-ray reflectivity using synchrotron radiation. We find rough surface with the growth exponent, $\beta_S$ = 0.51$\pm$0.04. This indicates that…

Materials Science · Physics 2007-05-23 T. C. Kim , J. -M. Lee , Y. Kim , D. Y. Noh , S. -J. OH , J. -S. Kim
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