Epitaxial growth of ZnO films on thin FeO(111) layers

Xue, Mingshan; Guo, Qi; Wu, Kehui; Guo, Jiandong

doi:10.1016/j.jcrysgro.2009.06.001

Cited by 11 publications

(12 citation statements)

References 33 publications

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“…0, metal atoms tend to exist in the form of particles/ clusters, while S , 0 benefits formation of a continuous film. 31 Comparing the Ag-MgO(100) system with the Ag-MgO(111) system, c MgO is a decisive factor to determine the growth mode of Ag. It has been reported that the average surface energy of O-terminated MgO(111) surface is y5.3 J m 22 , which is much higher than that of MgO(100) surface (0.9 J m 22 ).…”

Section: Growth Of Ag On Faceted Mgo(111) Filmsmentioning

confidence: 99%

Growth and electronic structure of Ag on polar MgO(111) films

et al. 2013

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The growth and electronic structure of Ag on polar MgO(111) thin films with {100} facets were in situ investigated by low energy electron diffraction and photoemission spectroscopies. The Ag epitaxially grows on faceted MgO(111) surface as Ag(111) films due to the large surface energy of the MgO(111) face in spite of the existence of {100} facets, compared with a three-dimensional growth of Ag on MgO(100) films. Based on the photoemission spectroscopies studies, the shifts of the Ag 3d core level line at the initial coverage are mainly associated with size effects rather than chemical interaction. The results are helpful to the understanding of the growth mechanisms and electronic structure of metals on polar oxide surfaces.

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Section: Growth Of Ag On Faceted Mgo(111) Filmsmentioning

confidence: 99%

Growth and electronic structure of Ag on polar MgO(111) films

et al. 2013

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“…Fe oxide buffer layers improve the NiO(111) growth with respect to the direct growth on the pristine Mo(110) substrate, decreasing the lattice mismatch and lowering the interfacial energy thanks to the chemical reactions occurring between NiO and the iron oxide [158]. A similar strategy, employing a FeO(111) layer grown on Mo (110), was adopted for the stabilization of ZnO(0001) films [159].…”

Section: Magnetic Couplingmentioning

confidence: 99%

Reactive metal–oxide interfaces: A microscopic view

Picone

Riva

Brambilla

et al. 2016

Surface Science Reports

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Metal-oxide interfaces play a fundamental role in determining the functional properties of artificial layered heterostructures, which are at the root of present and future technological applications. Magnetic exchange and magnetoelectric coupling, spin filtering, metal passivation, catalytic activity of oxide-supported nano-particles are just few examples of physical and chemical processes arising at metal-oxide hybrid systems, readily exploited in working devices. These phenomena are strictly correlated with the chemical and structural characteristics of the metal-oxide interfacial region, making a thorough understanding of the atomistic mechanisms responsible of its formation a prerequisite in order to tailor the device properties. The steep compositional gradient established upon formation of metal-oxide heterostructures drives strong chemical interactions at the interface, making the metal-oxide boundary region a complex system to treat, both from an experimental and a theoretical point of view. However, once properly mastered, interfacial chemical interactions offer a further degree of freedom for tuning the material properties. The goal of the present review is to provide a summary of the latest achievements in the understanding of metal/oxide and oxide/metal layered systems characterized by reactive interfaces. The influence of the interface composition on the structural, electronic and magnetic properties will be highlighted. Particular emphasis will be devoted to the discussion of ultra-thin epitaxial oxides stabilized on highly oxidizable metals, which have been rarely exploited as oxide supports as compared to the much more widespread noble and quasi noble metallic substrates. In this frame, an extensive discussion is devoted to the microscopic characterization of interfaces between epitaxial metal oxides and the Fe(001) substrate, regarded from the one hand as a prototypical ferromagnetic material and from the other hand as a highly oxidizable metal.

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“…A second type of polar/polar interfaces is characterized by δ P ̸ = 0, when one or several of its three contributions (structural, valence, or electronic discontinuity) are non zero. Such interfaces are polar, with a strong voltage across the system, which has to be canceled out, either by interface non-stoichiometry, as in the ZnO/FeO interface [84], or by the formation of a 2DEG, depending upon experimental preparation conditions. For the latter to exist, an overlap between the top of the VB of one compound and the bottom of the CB of the other compound has to take place, as illustrated in Fig.…”

Section: Electronic Reconstruction At Polar/polar Interfacesmentioning

confidence: 99%