Polarization-resolved Raman measurements on few-layer Fe3GeTe2 reveal two A1g modes and one chiral E2g mode, and temperature-dependent phonon anomalies that indicate spin-phonon coupling below the Curie temperature.
Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
The recent discovery of ferromagnetism in two-dimensional (2D) van der Waals (vdW) materials holds promises for novel spintronic devices with exceptional performances. However, in order to utilize 2D vdW magnets for building spintronic nanodevices such as magnetic memories, key challenges remain in terms of effectively switching the magnetization from one state to the other electrically. Here, we devise a bilayer structure of Fe3GeTe2/Pt, in which the magnetization of few-layered Fe3GeTe2 can be effectively switched by the spin-orbit torques (SOTs) originated from the current flowing in the Pt layer. The effective magnetic fields corresponding to the SOTs are further quantitatively characterized using harmonic measurements. Our demonstration of the SOT-driven magnetization switching in a 2D vdW magnet could pave the way for implementing low-dimensional materials in the next-generation spintronic applications.
citation-role summary
background 1
citation-polarity summary
fields
cond-mat.mes-hall 1years
2019 1verdicts
CONDITIONAL 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Lattice dynamics, phonon chirality and spin-phonon coupling in 2D itinerant ferromagnet Fe3GeTe2
Polarization-resolved Raman measurements on few-layer Fe3GeTe2 reveal two A1g modes and one chiral E2g mode, and temperature-dependent phonon anomalies that indicate spin-phonon coupling below the Curie temperature.