477 citations · 1.1k across the 11 of their papers we have counts for
11 papers
Charge-to-spin conversion in epitaxial and polycrystalline Bi and Bi/Ag layers
Federica Nasr, Emir Karadža, Santos F. Alvarado +9
Bi is predicted to be an efficient generator of spin-orbit torques (SOTs), with charge-to-spin conversion efficiency comparable to those of prototypical heavy metals, such as Ta, W…
Spin-orbit torques and spin Hall magnetoresistance generated by twin-free and amorphous Bi0.9Sb0.1 topological insulator films
Federico Binda, Stefano Fedel, Santos Francisco Alvarado +2
Topological insulators have attracted great interest as generators of spin-orbit torques (SOTs) in spintronic devices. Bi\textsubscript{1-x}Sb\textsubscript{x} is a prominent topol…
Spin-orbit torques and magnetotransport properties of -Sn and -Sn heterostructures
Federico Binda, Can Onur Avci, Santos Francisco Alvarado +3
Topological insulators have emerged as an important material class for efficient spin-charge interconversion. Most topological insulators considered to date are binary or ternary c…
Unidirectional spin Hall magnetoresistance in ferromagnet/normal metal bilayers
Can Onur Avci, Kevin Garello, Abhijit Ghosh +3
Magnetoresistive effects are usually invariant upon inversion of the magnetization direction. In noncentrosymmetric conductors, however, nonlinear resistive terms can give rise to…
Interplay of spin-orbit torque and thermoelectric effects in ferromagnet/normal metal bilayers
Can Onur Avci, Kevin Garello, Mihai Gabureac +4
We present harmonic transverse voltage measurements of current-induced thermoelectric and spin-orbit torque (SOT) effects in ferromagnet/normal metal bilayers, in which thermal gra…
Breakdown of the Korringa Law of Nuclear Spin Relaxation in Metallic GaAs
D. Kölbl, D. M. Zumbühl, A. Fuhrer +2
We present nuclear spin relaxation measurements in GaAs epilayers using a new pump-probe technique in all-electrical, lateral spin-valve devices. The measured T1 times agree very w…
The Nuclear Spin Environment in Lateral GaAs Spin Valves
D. Kölbl, D. M. Zumbühl, A. Fuhrer +2
The spin degree of freedom in solids offers opportunities beyond charge-based electronics and is actively investigated for both spintronics and quantum computation. However, the in…
Spin-injection spectra of CoFe/GaAs contacts: dependence on Fe concentration, interface and annealing conditions
G. Salis, S. F. Alvarado, A. Fuhrer
Spin injection from Co70Fe30 and Fe contacts into bulk GaAs(001) epilayers is studied experimentally. Using nonlocal measurements, the spin polarization of the differential conduct…
Temperature dependence of the nonlocal voltage in an Fe/GaAs electrical spin injection device
G. Salis, A. Fuhrer, R. R. Schlittler +2
The nonlocal spin resistance is measured as a function of temperature in a Fe/GaAs spin-injection device. For nonannealed samples that show minority-spin injection, the spin resist…
Signatures of dynamically polarized nuclear spins in all-electrical lateral spin transport devices
G. Salis, A. Fuhrer, S. F. Alvarado
The effect of nuclear spins in Fe/GaAs all-electrical spin-injection devices is investigated. At temperatures below 50 K, strong modifications of the non-local spin signal are foun…
Interferometric detection of spin-polarized transport in the depletion layer of a metal-GaAs Schottky barrier
G. Salis, S. F. Alvarado
It is shown that the Kerr rotation of spin-polarized electrons is modulated by the distance of the electrons from the sample surface. Time-resolved Kerr rotation of optically-excit…