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Block magnetism coupled with local distortion in the iron-based spin-ladder compound BaFe2Se3
Block magnetism local distortion iron-based spin-ladder compound BaFe2Se3
2012/2/27
Magnetism in the insulating BaFe$_2$Se$_3$ was examined through susceptibility, specific heat, resistivity and neutron diffraction measurements. After formation of a short-range magnetic correlation, ...
Local electronic structure of Fe$^{2+}$ impurities in MgO thin films: Temperature-dependent soft x-ray absorption spectroscopy study
Local electronic structure of Fe$^{2+}$ impurities Temperature-dependent soft x-ray absorption spectroscopy study
2010/11/18
We report on the local electronic structure of Fe impurities in MgO thin films. Using soft x-ray absorption spectroscopy (XAS) we verified that the Fe impurities are all in the 2+ valence state.The fi...
Local spin valve effect in lateral (Ga,Mn)As/GaAs spin Esaki diode devices
Local spin valve effect lateral (Ga,Mn)As/GaAs spin Esaki diode devices
2010/11/19
We report here on a local spin valve effect observed unambiguously in lateral all-semiconductor
all-electrical spin injection devices, employing p+−(Ga,Mn)As/n+−GaAs Esaki diode structure...
Storage of quantum coherences as phase labeled local polarization using magnetic field gradients in NMR
Storage of quantum coherences phase labeled local polarization magnetic field gradients
2010/10/18
Long decay times were previously observed in samples such as 29Si, C60,Y2O3 by applying multi-
pulse nuclear magnetic resonance sequences to measure decoherence times. They are originated in
stimula...
A Local-Pair Mechanism for High-Temperature Superconductivity at the Di- and Trivalent Sites
High-Temperature Superconductivity Di- Trivalent Sites
2010/4/15
The \( p/d \) hybridization that primarily characterizes copper leads to local moments, lacking of the pair-breaking variety, both at di- and trivalent sites. Support for the negative-U model is extra...