Open Access

Letzte Einträge:
2017-02-28
09:32
OpenAccess [FZJ-2017-01958] Journal Article
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Magnetism in a graphene- 4 f − 3 d hybrid system
We create an interface of graphene with a metallic and magnetic support that leaves its electronic structure largely intact. This is achieved by exposing epitaxial graphene on ferromagnetic thin films of Co and Ni to vapor of the rare earth metal Eu at elevated temperatures, resulting in the intercalation of an Eu monolayer in between graphene and its substrate. [...]
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2017-02-28
09:29
OpenAccess [FZJ-2017-01957] Journal Article
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Chiral magnetism of magnetic adatoms generated by Rashba electrons
We investigate long-range chiral magnetic interactions among adatoms mediated by surface states spin-splitted by spin–orbit coupling. Using the Rashba model, the tensor of exchange interactions is extracted wherein a thepseudo-dipolar interaction is found, in addition to the usual isotropic exchange interaction and the Dzyaloshinskii–Moriya interaction. [...]
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2017-02-24
18:15
OpenAccess [FZJ-2017-01953] Journal Article
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A decadal satellite record of gravity wave activity in the lower stratosphere to study polar stratospheric cloud formation
Atmospheric gravity waves yield substantial small-scale temperature fluctuations that can trigger the formation of polar stratospheric clouds (PSCs). This paper introduces a new satellite record of gravity wave activity in the polar lower stratosphere to investigate this process. [...]
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2017-02-23
15:14
OpenAccess [FZJ-2017-01941] Journal Article
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Intramolecular hydrophobic interactions are critical mediators of STAT5 dimerization
STAT5 is an essential transcription factor in hematopoiesis, which is activated through tyrosine phosphorylation in response to cytokine stimulation. Constitutive activation of STAT5 is a hallmark of myeloid and lymphoblastic leukemia. [...]
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2017-02-23
11:56
OpenAccess [FZJ-2017-01934] Book/Report

Extrazelluläre Ableitung elektrisch erregbarer Zellen
[Juel-4324]
Berichte des Forschungszentrums Jülich 4324, III, 42 p. (2010)
In dieser Arbeit wurden zwei Messsysteme zur extrazellulären Ableitung von Zellsignalen vorgestellt und die damit durchgeführten Experimente erläutert. Dabei wurden verschiedene MEAs mit unterschiedlichen Elektrodengrößen und Beschichtungen verwendet.Die „Standard“ Gold MEAs werden immer weiter modifiziert, um die Elektroden möglichst klein zu halten, dafür aber immer größere Elektrodenoberflächen zu schaffen. [...]
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2017-02-22
08:18
OpenAccess [FZJ-2017-01895] Book/Report

2nd Annual Workshop Proceedings, 7th EC FP – SKIN
[Juel-4364]
Berichte des Forschungszentrums Jülich 4364, 143 p. (2013)
The present document is the proceedings of the 2nd Annual Workshop of the Euratom FP7 Collaborative Project SKIN (Slow processes in close-to-equilibrium conditions for radionuclides in water/solid systems of relevance to nuclear waste management). The project started in Januaray 2011 and has three years duration. [...]
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2017-02-21
09:34
OpenAccess [FZJ-2017-01891] Journal Article
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Environmental conditions regulate the impact of plants on cloud formation
The terrestrial vegetation emits large amounts of volatile organic compounds (VOC) into the atmosphere, which on oxidation produce secondary organic aerosol (SOA). By acting as cloud condensation nuclei (CCN), SOA influences cloud formation and climate. [...]
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2017-02-20
10:36
OpenAccess [FZJ-2017-01884] Journal Article
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Contact-Free Mapping of Electronic Transport Phenomena of Polar Domains in SrMnO$_{3}$ Films
High-resolution mapping of electronic transport phenomena plays an increasingly important role for the characterization of ferroic domains and their functionality. At present, spatially resolved electronic transport data are commonly gained from local two-point measurements, collected in line-by-line scans with a conducting nanosized probe. [...]
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2017-02-20
10:35
OpenAccess [FZJ-2017-01883] Journal Article
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Energetic, spatial, and momentum character of the electronic structure at a buried interface: The two-dimensional electron gas between two metal oxides
The interfaces between two condensed phases often exhibit emergent physical properties that can lead to new physics and novel device applications and are the subject of intense study in many disciplines. We here apply experimental and theoretical techniques to the characterization of one such interesting interface system: the two-dimensional electron gas (2DEG) formed in multilayers consisting of SrTiO3 (STO) and GdTiO3 (GTO). [...]
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2017-02-20
10:31
OpenAccess [FZJ-2017-01881] Journal Article
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Effects of spin excitons on the surface states of SmB 6 : A photoemission study
We present the results of a high-resolution valence-band photoemission spectroscopic study of SmB6 which shows evidence for a V-shaped density of states of surface origin within the bulk gap. The spectroscopy data are interpreted in terms of the existence of heavy 4f surface states, which may be useful in resolving the controversy concerning the disparate surface Fermi-surface velocities observed in experiments. [...]
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