PMID- 31408607
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231014
IS  - 1530-6992 (Electronic)
IS  - 1530-6984 (Print)
IS  - 1530-6984 (Linking)
VI  - 19
IP  - 9
DP  - 2019 Sep 11
TI  - Charge-to-Spin Conversion by the Rashba-Edelstein Effect in Two-Dimensional van 
      der Waals Heterostructures up to Room Temperature.
PG  - 5959-5966
LID - 10.1021/acs.nanolett.9b01611 [doi]
AB  - The proximity of a transition-metal dichalcogenide (TMD) to graphene imprints a 
      rich spin texture in graphene and complements its high-quality charge/spin 
      transport by inducing spin-orbit coupling (SOC). Rashba and valley-Zeeman SOCs 
      are the origin of charge-to-spin conversion mechanisms such as the 
      Rashba-Edelstein effect (REE) and spin Hall effect (SHE). In this work, we 
      experimentally demonstrate for the first time charge-to-spin conversion due to 
      the REE in a monolayer WS(2)-graphene van der Waals heterostructure. We measure 
      the current-induced spin polarization up to room temperature and control it by a 
      gate electric field. Our observation of the REE and the inverse of the effect 
      (IREE) is accompanied by the SHE, which we discriminate by symmetry-resolved spin 
      precession under oblique magnetic fields. These measurements also allow for the 
      quantification of the efficiencies of charge-to-spin conversion by each of the 
      two effects. These findings are a clear indication of induced Rashba and 
      valley-Zeeman SOC in graphene that lead to the generation of spin accumulation 
      and spin current without using ferromagnetic electrodes. These realizations have 
      considerable significance for spintronic applications, providing accessible 
      routes toward all-electrical spin generation and manipulation in two-dimensional 
      materials.
FAU - Ghiasi, Talieh S
AU  - Ghiasi TS
AUID- ORCID: 0000-0002-3490-5356
AD  - Zernike Institute for Advanced Materials , University of Groningen , Groningen , 
      9747 AG , The Netherlands.
FAU - Kaverzin, Alexey A
AU  - Kaverzin AA
AD  - Zernike Institute for Advanced Materials , University of Groningen , Groningen , 
      9747 AG , The Netherlands.
FAU - Blah, Patrick J
AU  - Blah PJ
AD  - Zernike Institute for Advanced Materials , University of Groningen , Groningen , 
      9747 AG , The Netherlands.
FAU - van Wees, Bart J
AU  - van Wees BJ
AD  - Zernike Institute for Advanced Materials , University of Groningen , Groningen , 
      9747 AG , The Netherlands.
LA  - eng
PT  - Journal Article
DEP - 20190827
PL  - United States
TA  - Nano Lett
JT  - Nano letters
JID - 101088070
SB  - IM
PMC - PMC6746057
OTO - NOTNLM
OT  - Rashba spin-orbit coupling
OT  - Rashba-Edelstein effect
OT  - proximity effect
OT  - spin Hall effect
OT  - valley-Zeeman
COIS- The authors declare no competing financial interest.
EDAT- 2019/08/14 06:00
MHDA- 2019/08/14 06:01
PMCR- 2019/09/16
CRDT- 2019/08/14 06:00
PHST- 2019/08/14 06:00 [pubmed]
PHST- 2019/08/14 06:01 [medline]
PHST- 2019/08/14 06:00 [entrez]
PHST- 2019/09/16 00:00 [pmc-release]
AID - 10.1021/acs.nanolett.9b01611 [doi]
PST - ppublish
SO  - Nano Lett. 2019 Sep 11;19(9):5959-5966. doi: 10.1021/acs.nanolett.9b01611. Epub 
      2019 Aug 27.