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Related papers: Two-dimensional manganese oxide nanolayers on Pd(1…

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Using different experimental techniques combined with density functional based theoretical methods we have explored the formation of interface-stabilized manganese oxide structures grown on Pd(100) at (sub)monolayer coverage. Amongst the…

Materials Science · Physics 2015-05-13 C. Franchini , R. Podloucky , F. Allegretti , F. Li , G. Parteder , S. Surnev , F. P. Netzer

X-ray photoelectron spectroscopy and diffraction (XPS, XPD) and scanning tunneling microscopy (STM) have been used for study of NbOx-structures on the Nb(110) surface. It is shown that niobium atoms are ordered to form a two-dimensional…

Materials Science · Physics 2008-11-11 A. S. Razinkin , E. V. Shalaeva , M. V. Kuznetsov

The many surface reconstructions of (110)-oriented lanthanum--strontium manganite (La$_{0.8}$Sr$_{0.2}$MnO$_3$, LSMO) were followed as a function of the oxygen chemical potential ($\mu_\text{O}$) and the surface cation composition.…

Materials Science · Physics 2021-09-29 Giada Franceschi , Michael Schmid , Ulrike Diebold , Michele Riva

Optical properties of ZnMnO layers grown at low temperature by Atomic Layer Deposition and Metalorganic Vapor Phase Epitaxy are discussed and compared to results obtained for ZnMnS samples. Present results suggest a double valence of Mn…

The morphology of growing Pd nano-particles on MgO(001) surfaces have been investigated in situ, during growth, by grazing incidence small angle x-ray scattering, for different substrate temperatures. The 2D patterns obtained are…

Materials Science · Physics 2009-11-13 F. Leroy , C. Revenant , G. Renaud , R. Lazzari

The possible formation of oxides or thin oxide films (surface oxides) on late transition metal surfaces is recently being recognized as an essential ingredient when aiming to understand catalytic oxidation reactions under technologically…

Materials Science · Physics 2009-11-13 Jutta Rogal , Karsten Reuter , Matthias Scheffler

A series of MnO2 unique nanostructures were synthesized by a facile hydrothermal method with microwave-assisted procedures. A novel nanostructure formation mechanism has been proposed, that MnO6 octahedral nuclei and molecular layers can be…

Mesoscale and Nanoscale Physics · Physics 2012-07-16 R. Zeng , J. Q. Wang , G. D. Du , W. X. Li , Z. X. Chen , S. Li , S. X. Dou

X-ray amorphous manganese oxides were prepared by reduction of sodium permanganate by lithium iodide in aqueous medium (MnOx-I) and by decomposition of manganese carbonate at moderate temperature (MnOx-C). TEM showed that these materials…

NiO layers were grown on MgO(100), MgO(110), and MgO(111) substrates by plasma-assisted molecular beam epitaxy under Ni-flux limited growth conditions. Single crystalline growth with a cube-on-cube epitaxial relationship was confirmed by…

The surface steps play dramatic roles in surface dominated processes and the related properties, in which these roles would be significantly enhanced for the low-dimensional nano or quantum materials since the ratio of surface atoms is…

Materials Science · Physics 2023-03-14 Jiake Wei , Masato Yoshiya , Feng Bin , Naoya Shibata , Yuichi Ikuhara

Two-dimensional (2D) antimony, so-called antimonene, can form antimonene oxide when exposed to air. We present different types of single- and few-layer antimony oxide structures, based on density functional theory (DFT) calculations.…

Materials Science · Physics 2020-04-01 Stefan Wolff , Roland Gillen , Mhamed Assebban , Gonzalo Abellán , Janina Maultzsch

The surface stabilized MnO(100)-like monolayer, characterised by a regular c(4x2) distribution of Mn vacancies, is studied by hybrid functionals and discussed in the light of available scanning tunneling microscopy and high-resolution…

Materials Science · Physics 2009-11-13 C. Franchini , J. Zabloudil , R. Podloucky , F. Allegretti , F. Li , S. Surnev , F. P. Netzer

We have investigated the growth of antiferromagnetic Mn3N2(001) on MgO (001) by molecular beam epitaxy and scanning tunneling microscopy . The images show smooth terraces and atomic steps. On some of the terraces a unique and new…

Materials Science · Physics 2007-05-23 Rong Yang , Haiqiang Yang , Arthur R. Smith

Manganese oxides have received much attention over the years among the wide range of electrocatalysts for the oxygen evolution reaction (OER) due to their low toxicity, high abundance and rich redox chemistry. While many previous studies…

Materials Science · Physics 2020-10-15 Javier Villalobos , Ronny Golnak , Lifei Xi , Götz Schuck , Marcel Risch

Hexagonal manganites REMnO3 (RE, rare earths) have attracted significant attention due to their potential applications as multiferroic materials and the intriguing physics associated with the topological defects. The two-dimensional (2D)…

Materials Science · Physics 2018-01-24 Fei Xue , Nan Wang , Xueyun Wang , Yanzhou Ji , Sang-Wook Cheong , Long-Qing Chen

The formation of highly reactive oxygen species (ROS) on metal oxide surfaces have attracted considerable interest due to their diverse applications. In this work, we have performed densi-ty-functional theory calculations to investigate the…

Chemical Physics · Physics 2016-08-18 Zhenjun Song , Hu Xu

When pristine material surfaces are exposed to air, highly reactive broken bonds can promote the formation of surface oxides with structures and properties differing greatly from bulk. Determination of the oxide structure, however, is often…

Spontaneous formation of grains has been observed for the MnAs layer grown by means of MBE on the GaN(0001)-(1x1) surface. Electronic structure of the system was investigated in situ by resonant photoemission spectroscopy. Density of the…

We employ a multiscale modeling approach to study the surface structure and composition of a Pd(100) model catalyst in reactive environments. Under gas phase conditions representative of technological CO oxidation (~1 atm, 300-600 K) we…

Materials Science · Physics 2007-05-23 Jutta Rogal , Karsten Reuter , Matthias Scheffler

The initial growth of MnBi on MnAs terminated (GaMn)As is studied by means of synchrotron based photoelectron spectroscopy. From analysis of surface core level shifts we conclude that a continued epitaxial MnBi layer is formed, in which the…

Materials Science · Physics 2015-05-13 J. Adell , M. Adell , I. Ulfat , L. Ilver , J. Sadowski , J. Kanski
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