Spin-resolved photoemission study of epitaxially grown MoSe 2 and WSe 2 thin films
Abstract
© 2016 IOP Publishing Ltd. Few-layer thick MoSe 2 and WSe 2 possess non-trivial spin textures with sizable spin splitting due to the inversion symmetry breaking embedded in the crystal structure and strong spin-orbit coupling. We report a spin-resolved photoemission study of MoSe 2 and WSe 2 thin film samples epitaxially grown on a bilayer graphene substrate. We only found spin polarization in the single-and trilayer samples-not in the bilayer sample-mostly along the out-of-plane direction of the sample surface. The measured spin polarization is found to be strongly dependent on the light polarization as well as the measurement geometry, which reveals intricate coupling between the spin and orbital degrees of freedom in this class of material.
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
- Pusan National Univ., Busan (Korea, Republic of). Dept. of Physics
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source; Nanjing Univ. (China). National Lab. of Solid State Microstructures; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Inst. of Materials and Energy Sciences
- Ecole Polytechnique Federale Lausanne (Switzlerland). Inst. of Physics; Paul Scherrer Inst. (PSI), Villigen (Switzerland). Swiss Light Source
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Inst. of Materials and Energy Sciences; Stanford Univ., CA (United States). Geballe Lab. for Advaned Materials
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1349089
- Alternate Identifier(s):
- OSTI ID: 1323987; OSTI ID: 1379583
- Grant/Contract Number:
- AC02-05CH11231; AC02-76SF00515; 2015R1C1A1A01053065; PP00P2 144742/1
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. Condensed Matter
- Additional Journal Information:
- Journal Volume: 28; Journal Issue: 45; Journal ID: ISSN 0953-8984
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; transition metal dichalcogenides; MoSe2; WSe2; spin-resolved photoemission; ARPEs; photoemission
Citation Formats
Mo, Sung-Kwan, Hwang, Choongyu, Zhang, Yi, Fanciulli, Mauro, Muff, Stefan, Hugo Dil, J., Shen, Zhi-Xun, and Hussain, Zahid. Spin-resolved photoemission study of epitaxially grown MoSe 2 and WSe 2 thin films. United States: N. p., 2016.
Web. doi:10.1088/0953-8984/28/45/454001.
Mo, Sung-Kwan, Hwang, Choongyu, Zhang, Yi, Fanciulli, Mauro, Muff, Stefan, Hugo Dil, J., Shen, Zhi-Xun, & Hussain, Zahid. Spin-resolved photoemission study of epitaxially grown MoSe 2 and WSe 2 thin films. United States. https://doi.org/10.1088/0953-8984/28/45/454001
Mo, Sung-Kwan, Hwang, Choongyu, Zhang, Yi, Fanciulli, Mauro, Muff, Stefan, Hugo Dil, J., Shen, Zhi-Xun, and Hussain, Zahid. Mon .
"Spin-resolved photoemission study of epitaxially grown MoSe 2 and WSe 2 thin films". United States. https://doi.org/10.1088/0953-8984/28/45/454001. https://www.osti.gov/servlets/purl/1349089.
@article{osti_1349089,
title = {Spin-resolved photoemission study of epitaxially grown MoSe 2 and WSe 2 thin films},
author = {Mo, Sung-Kwan and Hwang, Choongyu and Zhang, Yi and Fanciulli, Mauro and Muff, Stefan and Hugo Dil, J. and Shen, Zhi-Xun and Hussain, Zahid},
abstractNote = {© 2016 IOP Publishing Ltd. Few-layer thick MoSe 2 and WSe 2 possess non-trivial spin textures with sizable spin splitting due to the inversion symmetry breaking embedded in the crystal structure and strong spin-orbit coupling. We report a spin-resolved photoemission study of MoSe 2 and WSe 2 thin film samples epitaxially grown on a bilayer graphene substrate. We only found spin polarization in the single-and trilayer samples-not in the bilayer sample-mostly along the out-of-plane direction of the sample surface. The measured spin polarization is found to be strongly dependent on the light polarization as well as the measurement geometry, which reveals intricate coupling between the spin and orbital degrees of freedom in this class of material.},
doi = {10.1088/0953-8984/28/45/454001},
journal = {Journal of Physics. Condensed Matter},
number = 45,
volume = 28,
place = {United States},
year = {Mon Sep 12 00:00:00 EDT 2016},
month = {Mon Sep 12 00:00:00 EDT 2016}
}
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