Journal
PHYSICAL REVIEW B
Volume 102, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.102.014450
Keywords
-
Funding
- European Commission through the project Graphene-Driven Revolutions in ICT and Beyond [881603 - Core 3]
- Portuguese Foundation for Science and Technology (FCT) [UID/FIS/04650/2013, PTDC/FISNAN/3668/2013, POCI-01-0145-FEDER-028114, UTAP-EXPL/NTec/0046/2017]
- FEDER
- COMPETE2020
- PORTUGAL2020
- Generalitat Valenciana [Prometeo2017/139]
- MINECO-Spain [MAT2016-78625-C2]
- Fundação para a Ciência e a Tecnologia [UTAP-EXPL/NTec/0046/2017] Funding Source: FCT
Ask authors/readers for more resources
Nonreciprocal spin waves have a chiral asymmetry so that their energy is different for two opposite wave vectors. They are found in atomically thin ferromagnetic overlayers with in-plane magnetization and are linked to the antisymmetric Dzyaloshinskii-Moriya surface exchange. We use an itinerant fermion theory based on first-principles calculations to predict that nonreciprocal magnons can occur in Fe3GeTe2, the first stand-alone metallic two-dimensional crystal with out-of-plane magnetization. We find that both the energy and lifetime of magnons are nonreciprocal, and we predict that acoustic magnons can have lifetimes up to hundreds of picoseconds, orders of magnitude larger than in other conducting magnets.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available