William F. Egelhoff

Analysis of point-contact Andreev reflection spectra in spin polarization measurements

We present a systematic analysis of point-contact Andreev reflection (PCAR) spectra for ferromagnetic materials, using both modeling and experimental data. We emphasize the importance of consistent data analysis to avoid possible misinterpretation of the data. We consider the relationship between ballistic and diffusive transport, the effect of different transport regimes on spin polarization measurements, and the importance of unambiguous identification of the type of transport regime. We find that in a realistic parameter range, the analysis of PCAR spectra of purely diffusive character by a ballistic model yield approximately the same (within

Atomic-scale spectroscopic imaging of CoFeB/Mg–B–O/CoFeB magnetic tunnel junctions

\ensuremath{\sim}3%

Compositional Control in Electrodeposition of FePt Films

) values of the spin polarization and the barrier strength

Review of Noise Sources in Magnetic Tunnel Junction Sensors

Z

Effect of analysis direction on the measurement of interfacial mixing in thin metal layers with atom probe tomography.

larger by

Effects of annealing on local composition and electrical transport correlations in MgO-based magnetic tunnel junctions

\ensuremath{\sim}0.5--0.6

Compositional Control in Electrodeposited Ni x Pt1 − x Films

. We also consider the dependence of polarization values on

Damping at normal metal/permalloy interfaces

Z

Ballistic magnetoresistance in a nanocontact between a Ni cluster and a magnetic thin film

, and have shown by simple modeling that letting the superconducting gap vary as an adjustable parameter can result in a spurious dependence of the spin-polarization

A Structural Study of Electrodeposited Fe on n-GaAs ( 001 )

{P}_{c}