189 citations · 484 across the 6 of their papers we have counts for
6 papers
Room-temperature ferroelectric switching of spin-to-charge conversion in GeTe
Sara Varotto, Luca Nessi, Stefano Cecchi +17
Since its birth in the 1990s, semiconductor spintronics has suffered from poor compatibility with ferromagnets as sources of spin. While the broken inversion symmetry of some semic…
Mapping the band structure of GeSbTe phase change alloys around the Fermi level
Jens Kellner, Gustav Bihlmayer, Marcus Liebmann +16
Phase change alloys are used for non-volatile random access memories exploiting the conductivity contrast between amorphous and metastable, crystalline phase. However, this contras…
Ferroelectric control of the spin texture in germanium telluride
C. Rinaldi, S. Varotto, M. Asa +9
The electrical manipulation of spins in semiconductors, without magnetic fields or auxiliary ferromagnetic materials, represents the holy grail for spintronics. The use of Rashba e…
Giant g factor tuning of long-lived electron spins in Ge
Anna Giorgioni, Stefano Paleari, Stefano Cecchi +5
Control of electron spin coherence via external fields is fundamental in spintronics. Its implementation demands a host material that accommodates the highly desirable but contrast…
Photoinduced inverse spin Hall effect in Pt/Ge(001) at room temperature
Federico Bottegoni, Alberto Ferrari, Stefano Cecchi +3
We performed photoinduced inverse spin Hall effect (ISHE) measurements on a Pt/Ge(001) junction at room temperature. The spin-oriented electrons, photogenerated at the direct gap o…
Optical spin injection and spin lifetime in Ge heterostructures
F. Pezzoli, F. Bottegoni, D. Trivedi +9
We demonstrate optical orientation in Ge/SiGe quantum wells and study their spin properties. The ultrafast electron transfer from the center of the Brillouin zone to its edge allow…