Spin transport and relaxation in germanium

K Hamaya, Y Fujita, M Yamada… - Journal of Physics D …, 2018 - iopscience.iop.org
This paper reviews the recent progress in germanium (Ge) spintronics on the basis of the
electrical spin injection from ferromagnets (FM), where Ge is a next generation …

Spin-charge interconversion in heterostructures based on group-IV semiconductors

F Bottegoni, C Zucchetti, G Isella, M Bollani… - La Rivista del Nuovo …, 2020 - Springer
Spin-charge interconversion phenomena are ubiquitous in solid-state physics and represent
a powerful tool to investigate spin transport in metals, semiconductors and …

Evidence for spin-to-charge conversion by Rashba coupling in metallic states at the Fe/Ge (111) interface

S Oyarzún, AK Nandy, F Rortais… - Nature …, 2016 - nature.com
The spin–orbit coupling relating the electron spin and momentum allows for spin generation,
detection and manipulation. It thus fulfils the three basic functions of the spin field-effect …

Characterization of shallow, undoped Ge/SiGe quantum wells commercially grown on 8-in.(100) Si wafers

TA Hutchins-Delgado, AJ Miller, R Scott… - ACS Applied …, 2022 - ACS Publications
Hole spins in Ge quantum wells have shown success in both spintronic and quantum
applications, thereby increasing the demand for high-quality material. We performed …

Weak localization and weak antilocalization in doped germanium epilayers

PJ Newton, R Mansell, SN Holmes, M Myronov… - Applied physics …, 2017 - pubs.aip.org
The magnetoresistance of 50 nm thick epilayers of doped germanium is measured at a
range of temperatures down to 1.6 K. Both n-and p-type devices show quantum corrections …

Imaging spin diffusion in germanium at room temperature

C Zucchetti, F Bottegoni, C Vergnaud, F Ciccacci… - Physical Review B, 2017 - APS
We report on the nonlocal detection of optically oriented spins in lightly n-doped germanium
at room temperature. Localized spin generation is achieved by scanning a circularly …

Electrical detection of spin accumulation and relaxation in -type germanium

M Kawano, M Ikawa, K Santo, S Sakai, H Sato… - Physical Review …, 2017 - APS
We report on electrical measurements of spin-dependent transport of holes in all-epitaxial
CoFe/p-type germanium (p-Ge)/Fe 3 Si spin valves, where the hole concentration (ph) of the …

Spin orbitronics at a topological insulator-semiconductor interface

T Guillet, C Zucchetti, A Marchionni, A Hallal… - Physical Review B, 2020 - APS
Topological insulators (TIs) hold great promise for new spin-related phenomena and
applications thanks to the spin texture of their surface states. However, a versatile platform …

Non-local electrical spin injection and detection in germanium at room temperature

F Rortais, C Vergnaud, A Marty, L Vila… - Applied Physics …, 2017 - pubs.aip.org
Non-local carrier injection/detection schemes lie at the very foundation of information
manipulation in integrated systems. This paradigm consists in controlling with an external …

Spin-to-charge conversion for hot photoexcited electrons in germanium

C Zucchetti, F Bottegoni, G Isella, M Finazzi, F Rortais… - Physical Review B, 2018 - APS
We investigate the spin-to-charge conversion in highly doped germanium as a function of
the kinetic energy of the carriers. Spin-polarized electrons are optically generated in the Ge …