Tuning Phase Transitions in 1T-TaS2 via the Substrate

doi:10.1021/acs.nanolett.7b00418

HFCAS OpenIR > 中科院固体物理研究所

	Tuning Phase Transitions in 1T-TaS2 via the Substrate
	Zhao, Rui 1,2; Wang, Yi 1; Deng, Donna 1,2; Luo, Xuan3 ; Lu, Wen Jian 3; Sun, Yu -Ping 3,4,5; Liu, Zi-Kui 1; Chen, Long -Cling 1; Robinson, Joshua 1,2
	2017-06-01
发表期刊	NANO LETTERS
摘要	Phase transitions in 2D materials can lead to massive changes in electronic properties that enable novel electronic devices. Tantalum disulfide (TaS2), specifically the 1T phase (1T-TaS2), exhibits a phase transition based on the formation of commensurate charge density waves (CCDW) at 180 K. In this work, we investigate the impact of substrate choice on the phase transitions in ultrathin 1T-TaS2. Doping and charge transfer from the substrate has little impact on CDW phase transitions. On the contrary, we demonstrated that substrate surface roughness is a primary extrinsic factor in CCDW transition temperature and hysteresis, where higher roughness leads to smaller transition hysteresis. Such roughness can be simulated via surface texturing of SiO2/Si substrates, which controllably and reproducibly induces periodic strain in the 1T-TaS2 and thereby enables the potential for engineering CDW phase transitions.
文章类型	Article
关键词	1t-tantalum Disulfide (1t-tas2) Phase Transition Raman Spectroscopy Substrate Impact Strain
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1021/acs.nanolett.7b00418
关键词[WOS]	CHARGE-DENSITY-WAVE ; METAL DICHALCOGENIDES ; ELECTRICAL-PROPERTIES ; LOCAL STRAIN ; DYNAMICS ; FILMS ; SUPERCONDUCTIVITY ; 2H-TASE2 ; CHAINS ; MOS2
收录类别	SCI
语种	英语
项目资助者	NSF(EFRI-1433307) ; NSF(EFRI-1433307) ; NSF(EFRI-1433307) ; NSF(EFRI-1433307) ; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering(FG02-07ER46417) ; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering(FG02-07ER46417) ; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering(FG02-07ER46417) ; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering(FG02-07ER46417) ; National Key Research and Development Program(2016YFA0300404) ; National Key Research and Development Program(2016YFA0300404) ; National Key Research and Development Program(2016YFA0300404) ; National Key Research and Development Program(2016YFA0300404) ; National Nature Science Foundation of China(11674326) ; National Nature Science Foundation of China(11674326) ; National Nature Science Foundation of China(11674326) ; National Nature Science Foundation of China(11674326) ; National Natural Science Foundation of China, the Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232139 ; National Natural Science Foundation of China, the Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232139 ; National Natural Science Foundation of China, the Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232139 ; National Natural Science Foundation of China, the Chinese Academy of Sciences' Large-Scale Scientific Facility(U1232139 ; Key Research Program of Frontier Sciences of CAS(QYZDB-SSW-SLH015) ; Key Research Program of Frontier Sciences of CAS(QYZDB-SSW-SLH015) ; Key Research Program of Frontier Sciences of CAS(QYZDB-SSW-SLH015) ; Key Research Program of Frontier Sciences of CAS(QYZDB-SSW-SLH015) ; U1432139) ; U1432139) ; U1432139) ; U1432139)
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000403631600023
引用统计	被引频次：56[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31964
专题	中科院固体物理研究所
作者单位	1.Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA 2.Penn State Univ, Ctr Dimens & Layered Mat 2, University Pk, PA 16802 USA 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 4.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China 5.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Rui,Wang, Yi,Deng, Donna,et al. Tuning Phase Transitions in 1T-TaS2 via the Substrate[J]. NANO LETTERS,2017,17(6):3471-3477.
APA	Zhao, Rui.,Wang, Yi.,Deng, Donna.,Luo, Xuan.,Lu, Wen Jian.,...&Robinson, Joshua.(2017).Tuning Phase Transitions in 1T-TaS2 via the Substrate.NANO LETTERS,17(6),3471-3477.
MLA	Zhao, Rui,et al."Tuning Phase Transitions in 1T-TaS2 via the Substrate".NANO LETTERS 17.6(2017):3471-3477.

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