A Novel $$\sqrt {19} $$ × $$\sqrt {19} $$ Superstructure in Epitaxially Grown 1T–TaTe2
Abstract
The spontaneous formation of electronic orders is a crucial element for understanding complex quantum states and engineering heterostructures in 2D materials. A novel $$\sqrt {19} $$ × $$\sqrt {19} $$ charge order in few-layer-thick 1T-TaTe2 transition metal dichalcogenide films grown by molecular beam epitaxy, which has not been realized, is report. The photoemission and scanning probe measurements demonstrate that monolayer 1T-TaTe2 exhibits a variety of metastable charge density wave orders, including the $$\sqrt {19} $$ × $$\sqrt {19} $$ superstructure, which can be selectively stabilized by controlling the post-growth annealing temperature. Moreover, it is found that only the $$\sqrt {19} $$ × $$\sqrt {19} $$ order persists in 1T-TaTe2 films thicker than a monolayer, up to 8 layers. Furthermore, the findings identify the previously unrealized novel electronic order in a much-studied transition metal dichalcogenide and provide a viable route to control it within the epitaxial growth process.
- Authors:
-
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Pusan National Univ., Busan (Korea, Republic of)
- Pusan National Univ., Busan (Korea, Republic of)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Korea Atomic Energy Research Inst., Daejeon (South Korea)
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of California, Berkeley, CA (United States)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fudan Univ., Shanghai (China)
- Korea Inst. of Science and Technology, Seoul (South Korea)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Pusan National Univ., Busan (Korea, Republic of); Korea Inst. of Science and Technology, Seoul (South Korea)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Research Foundation of Korea (NRF); Korea Basic Science Institute; Korea Atomic Energy Research Institute; Kavli Energy NanoScience Institute (ENSI)
- OSTI Identifier:
- 1888487
- Alternate Identifier(s):
- OSTI ID: 1882735; OSTI ID: 1885987
- Grant/Contract Number:
- AC02-05CH11231; AC02-76SF00515; 2021R1A2C1004266; 2020K1A3A7A09080369; 2021R1A6C101A429; 524460-22; 2021R1A2C2014179; DE‐AC02‐76SF00515; DE‐AC02‐05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Materials
- Additional Journal Information:
- Journal Volume: 34; Journal Issue: 38; Journal ID: ISSN 0935-9648
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; angle-resolved photoemission; charge density waves; molecular beam epitaxy; tantalum ditellurides; transition metal dichalcogenides
Citation Formats
Hwang, Jinwoong, Jin, Yeongrok, Zhang, Canxun, Zhu, Tiancong, Kim, Kyoo, Zhong, Yong, Lee, Ji‐Eun, Shen, Zongqi, Chen, Yi, Ruan, Wei, Ryu, Hyejin, Hwang, Choongyu, Lee, Jaekwang, Crommie, Michael F., Mo, Sung‐Kwan, and Shen, Zhi‐Xun. A Novel $\sqrt {19} $ × $\sqrt {19} $ Superstructure in Epitaxially Grown 1T–TaTe2. United States: N. p., 2022.
Web. doi:10.1002/adma.202204579.
Hwang, Jinwoong, Jin, Yeongrok, Zhang, Canxun, Zhu, Tiancong, Kim, Kyoo, Zhong, Yong, Lee, Ji‐Eun, Shen, Zongqi, Chen, Yi, Ruan, Wei, Ryu, Hyejin, Hwang, Choongyu, Lee, Jaekwang, Crommie, Michael F., Mo, Sung‐Kwan, & Shen, Zhi‐Xun. A Novel $\sqrt {19} $ × $\sqrt {19} $ Superstructure in Epitaxially Grown 1T–TaTe2. United States. https://doi.org/10.1002/adma.202204579
Hwang, Jinwoong, Jin, Yeongrok, Zhang, Canxun, Zhu, Tiancong, Kim, Kyoo, Zhong, Yong, Lee, Ji‐Eun, Shen, Zongqi, Chen, Yi, Ruan, Wei, Ryu, Hyejin, Hwang, Choongyu, Lee, Jaekwang, Crommie, Michael F., Mo, Sung‐Kwan, and Shen, Zhi‐Xun. Thu .
"A Novel $\sqrt {19} $ × $\sqrt {19} $ Superstructure in Epitaxially Grown 1T–TaTe2". United States. https://doi.org/10.1002/adma.202204579. https://www.osti.gov/servlets/purl/1888487.
@article{osti_1888487,
title = {A Novel $\sqrt {19} $ × $\sqrt {19} $ Superstructure in Epitaxially Grown 1T–TaTe2},
author = {Hwang, Jinwoong and Jin, Yeongrok and Zhang, Canxun and Zhu, Tiancong and Kim, Kyoo and Zhong, Yong and Lee, Ji‐Eun and Shen, Zongqi and Chen, Yi and Ruan, Wei and Ryu, Hyejin and Hwang, Choongyu and Lee, Jaekwang and Crommie, Michael F. and Mo, Sung‐Kwan and Shen, Zhi‐Xun},
abstractNote = {The spontaneous formation of electronic orders is a crucial element for understanding complex quantum states and engineering heterostructures in 2D materials. A novel $\sqrt {19} $ × $\sqrt {19} $ charge order in few-layer-thick 1T-TaTe2 transition metal dichalcogenide films grown by molecular beam epitaxy, which has not been realized, is report. The photoemission and scanning probe measurements demonstrate that monolayer 1T-TaTe2 exhibits a variety of metastable charge density wave orders, including the $\sqrt {19} $ × $\sqrt {19} $ superstructure, which can be selectively stabilized by controlling the post-growth annealing temperature. Moreover, it is found that only the $\sqrt {19} $ × $\sqrt {19} $ order persists in 1T-TaTe2 films thicker than a monolayer, up to 8 layers. Furthermore, the findings identify the previously unrealized novel electronic order in a much-studied transition metal dichalcogenide and provide a viable route to control it within the epitaxial growth process.},
doi = {10.1002/adma.202204579},
journal = {Advanced Materials},
number = 38,
volume = 34,
place = {United States},
year = {Thu Jul 28 00:00:00 EDT 2022},
month = {Thu Jul 28 00:00:00 EDT 2022}
}
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