Results
author = "Borghs, G."
Volatility and the cross-section of expected returns on the European market
Author(s) :
Borghs, G.S.J.
Description :
Repository :
Theses database, Tilburg University
Language(s) :
English
A GaAs ON Si COPLANAR TECHNOLOGY BY EMBEDDED MOLECULAR BEAM EPITAXY
Description :
No abstract available
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Strongly reduced bias dependence in spin-tunnel junctions obtained by ultraviolet light assisted oxidation
Description :
This version is available at the following Publisher URL: http://apl.aip.org
Repository :
JUWEL (JUelicher Wissenschaftliche Elektronische Literatur)
Language(s) :
German
Commensurability effects in Andreev antidot billiards
Description :
An Andreev billiard was realized in an array of niobium filled antidots in a
high-mobility InAs/AlGaSb heterostructure. Below the critical temperature T_C
of the Nb dots we observe a strong reduction of the resistance around B=0 and a
suppression of the commensurability peaks, which are usually fo...
Repository :
arXiv
Language(s) :
Undetermined
Andreev reflection at high magnetic fields: Evidence for electron and hole transport in edge states
Description :
We have studied magnetotransport in arrays of niobium filled grooves in an
InAs/AlGaSb heterostructure. The critical field of up to 2.6 T permits to enter
the quantum Hall regime. In the superconducting state, we observe strong
magnetoresistance oscillations, whose amplitude exceeds the Shubnikov-...
Repository :
arXiv
Language(s) :
Undetermined
Enhanced annealing effect in an oxygen atmosphere on GaMnAs
Description :
We report on in-situ resistivity measurements on GaMnAs during post-growth
annealing in different atmospheres. A drop in the resistivity is observed when
the GaMnAs is exposed to oxygen, which indicates that the passivation of Mn
interstitials (Mn_I) at the free surface occurs through oxidation. T...
Repository :
arXiv
Language(s) :
Undetermined
Doppler Shift in Andreev Reflection from a Moving Superconducting Condensate in Nb/InAs Josephson Junctions
Author(s) :
Rohlfing, F.
,
Tkachov, G.
,
Otto, F.
,
Richter, K.
,
Weiss, D.
,
Borghs, G.
,
Strunk, C.
Description :
We study narrow ballistic Josephson weak links in a InAs quantum wells
contacted by Nb electrodes and find a dramatic magnetic-field suppression of
the Andreev reflection amplitude, which occurs even for in-plane field
orientation with essentially no magnetic flux through the junction. Our
observa...
Repository :
arXiv
Language(s) :
Undetermined
Optical investigation of electrical spin injection into semiconductors
Author(s) :
Motsnyi, V.F.
,
van Dorpe, P.
,
van Roy, W.
,
Goovaerts, E.
,
Safarov, V.I.
,
Borghs, G.
,
DE BOECK, Joan
Description :
We investigate the electrical injection of spin-polarized electrons into a semiconductor [Al(GaAs)] heterostructure from ferromagnetic FeCo metal through an AlOx tunnel barrier. We have developed the optical oblique Hanle effect approach for the quantitative analysis of electrical spin injection int...
Repository :
Document Server@UHasselt
Language(s) :
English
Electrical spin injection in a ferromagnetic metal/insulator/semiconductor tunnel heterostructure
Author(s) :
Motsnyi, V.F.
,
Safarov, V.I.
,
van Dorpe, P.
,
Das, J.
,
van Roy, W.
,
Goovaerts, E.
,
Borghs, G.
,
DE BOECK, Joan
Description :
We demonstrate experimentally the electrical spin injection from a ferromagnetic metal/tunnel barrier contact into a semiconductor III-V heterostructure. The injected electrons have an in-plane spin orientation. We show that by applying an oblique external magnetic field this spin orientation can be...
Repository :
Document Server@UHasselt
Language(s) :
English
Influence of the morphology on the magneto-transport properties of laser-ablated ultrathin La0.7Ba0.3MnO3 films
Author(s) :
Das, A.
,
Gordon, I.
,
WAGNER, Patrick
,
Cannaerts, M.
,
Moshchalkov, V.V.
,
Bruynseraede, Y.
,
Schuddinck, W.
,
van Tendeloo, G.
Description :
Repository :
Document Server@UHasselt
Language(s) :
English