Topic
Single crystal
About: Single crystal is a research topic. Over the lifetime, 59617 publications have been published within this topic receiving 870828 citations.
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TL;DR: In this paper, the angular behavior of the sputtering ratio for Ar+ on (100) Cu turned around a [011] axis was studied for energies of 5, 10, 15, 20, and 35 V.
Abstract: Measurements of the angular behavior of the sputtering ratio for Ar+ on (100) Cu turned around a [011] axis are presented for Ar+ energies of 5, 10, 15, 20, and 35 keV. It is shown that the widths ...
145 citations
TL;DR: In this paper, the thermodynamic, kinetic and structural properties of UPD submonolayers and monolayers are summarized with respect to the latest theoretical and experimental results in this topic.
Abstract: The underpotential deposition (UPD) of metals on defined metal single crystal surfaces represents a relatively new field of investigations. In this paper, the latest theoretical and experimental results in this topic are summarized with respect to the thermodynamic, kinetic and structural properties of UPD submonolayers and monolayers. Furthermore, surface reconstruction phenomena, alloy formation, interrelation between UPD and electrocrystallization, electrocatalytic effects caused by UPD, and optical results are discussed. It is mentioned that UPD represents a special case for initial steps in phase formation processes in heterogeneous systems.
145 citations
TL;DR: In this article, the structural and electronic properties of the recently discovered k-phase salts are examined from the viewpoint of lattice softness by calculating strain indices for short intermolecular contacts and the random potential arising from ethylene group conformational disorder prevents superconductivity in the iodide salt.
Abstract: The recently discovered k -phase salts k -(BEDT-TTF) 2 ]Cu[N(CN) 2 ]X (X=Cl,Br, I) are isostructural but differ in their superconducting properties: the Br-salt is an ambient-pressure superconductor with T c =116K, the Cl-salt becomes superconducting ( T c =128K) under a slight applied pressure of 03 kbar, and the I-salt does not exhibit superconductivity under an applied-pressure of up to 5 kbar We examine the structural and electronic properties of these three salts on the basis of their crystal structures determined at 127 K by single crystal X-ray diffraction measurements The band electronic structure of the three salts are virtually the same and do not account for the differences in the conduction properties The differences in the three salts with regard to superconductivity are examined from the viewpoint of lattice softness by calculating strain indices for short intermolecular contacts The random potential arising from ethylene group conformational disorder prevents superconductivity in the iodide salt
145 citations
TL;DR: In this article, the Verwey transition is removed by measuring untwinned single crystals in a magnetic field, and the single crystal spectrum is then resolved into five individual components corresponding to a tetrahedral Fe +3, two octahedral Fe+3 and two octagonal Fe +2 sites.
145 citations
145 citations