Enhanced Berry Curvature Dipole and Persistent Spin Texture in the Bi(110) Monolayer
Abstract
Nonvanishing Berry curvature dipole (BCD) and persistent spin texture (PST) are intriguing physical manifestations of electronic states in noncentrosymmetric 2D materials. The former induces a nonlinear Hall conductivity while the latter offers a coherent spin current. Based on density-functional-theory (DFT) calculations, we demonstrate the coexistence of both phenomena in a Bi(110) monolayer with a distorted phosphorene structure. Both effects are concurrently enhanced due to the strong spin–orbit coupling of Bi while the structural distortion creates internal in-plane ferroelectricity with inversion asymmetry. We further succeed in fabricating a Bi(110) monolayer in the desired phosphorene structure on the NbSe2 substrate. Detailed atomic and electronic structures of the Bi(110)/NbSe2 heterostructure are characterized by scanning tunneling microscopy/spectroscopy and angle-resolved-photoemission spectroscopy. These results are consistent with DFT calculations which indicate the large BCD and PST are retained. Our results suggest the Bi(110)/NbSe2 heterostructure as a promising platform to exploit nonlinear Hall and coherent spin transport properties together.
- Authors:
-
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea, Department of Physics, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
- Department of Materials Science and Engineering, University of Utah, Salt Lake City, Utah 84112, United States
- Publication Date:
- Research Org.:
- Pohang Univ. of Science and Technology (Korea, Republic of)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1829542
- Alternate Identifier(s):
- OSTI ID: 1832855
- Grant/Contract Number:
- FG02-04ER46148
- Resource Type:
- Published Article
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Name: Nano Letters Journal Volume: 21 Journal Issue: 22; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; Bi(110) monolayer; Berry curvature dipole; nonlinear Hall effect; persistent spin texture; heterostructure; monolayers; band structure; electric fields; quantum mechanics
Citation Formats
Jin, Kyung-Hwan, Oh, Eunseok, Stania, Roland, Liu, Feng, and Yeom, Han Woong. Enhanced Berry Curvature Dipole and Persistent Spin Texture in the Bi(110) Monolayer. United States: N. p., 2021.
Web. doi:10.1021/acs.nanolett.1c02811.
Jin, Kyung-Hwan, Oh, Eunseok, Stania, Roland, Liu, Feng, & Yeom, Han Woong. Enhanced Berry Curvature Dipole and Persistent Spin Texture in the Bi(110) Monolayer. United States. https://doi.org/10.1021/acs.nanolett.1c02811
Jin, Kyung-Hwan, Oh, Eunseok, Stania, Roland, Liu, Feng, and Yeom, Han Woong. Mon .
"Enhanced Berry Curvature Dipole and Persistent Spin Texture in the Bi(110) Monolayer". United States. https://doi.org/10.1021/acs.nanolett.1c02811.
@article{osti_1829542,
title = {Enhanced Berry Curvature Dipole and Persistent Spin Texture in the Bi(110) Monolayer},
author = {Jin, Kyung-Hwan and Oh, Eunseok and Stania, Roland and Liu, Feng and Yeom, Han Woong},
abstractNote = {Nonvanishing Berry curvature dipole (BCD) and persistent spin texture (PST) are intriguing physical manifestations of electronic states in noncentrosymmetric 2D materials. The former induces a nonlinear Hall conductivity while the latter offers a coherent spin current. Based on density-functional-theory (DFT) calculations, we demonstrate the coexistence of both phenomena in a Bi(110) monolayer with a distorted phosphorene structure. Both effects are concurrently enhanced due to the strong spin–orbit coupling of Bi while the structural distortion creates internal in-plane ferroelectricity with inversion asymmetry. We further succeed in fabricating a Bi(110) monolayer in the desired phosphorene structure on the NbSe2 substrate. Detailed atomic and electronic structures of the Bi(110)/NbSe2 heterostructure are characterized by scanning tunneling microscopy/spectroscopy and angle-resolved-photoemission spectroscopy. These results are consistent with DFT calculations which indicate the large BCD and PST are retained. Our results suggest the Bi(110)/NbSe2 heterostructure as a promising platform to exploit nonlinear Hall and coherent spin transport properties together.},
doi = {10.1021/acs.nanolett.1c02811},
journal = {Nano Letters},
number = 22,
volume = 21,
place = {United States},
year = {2021},
month = {11}
}
https://doi.org/10.1021/acs.nanolett.1c02811
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