Structural and electronic phase transitions driven by electric field in metastable MoS2 thin flakes

doi:10.1103/PhysRevB.100.020508

	Structural and electronic phase transitions driven by electric field in metastable MoS2 thin flakes
	Shang, C.; Lei, B.; Zhuo, W. Z.; Zhang, Q.; Zhu, C. S.; Cui, J. H.; Luo, X. G.; Wang, N. Z.; Meng, F. B.; Ma, L. K.
刊名	PHYSICAL REVIEW B
	2019-07-30
卷号	100 期号:2
ISSN号	2469-9950
DOI	10.1103/PhysRevB.100.020508
文献子类	Article
英文摘要	Transition-metal dichalcogenides own a variety of structures as well as electronic properties which can be modulated by structural variations, element substitutions, ion or molecule intercalations, etc. However, there is very limited knowledge on metastable phases of this family, especially the precise regulation of structural changes and accompanied evolution of electronic properties. Here, based on a new developed field-effect transistor with solid ion conductor as the gate dielectric, we report a controllable structural and electronic phase transitions in metastable MoS2 thin flakes driven by electric field. We found that the metastable structure of 1T"'-MoS2 thin flake can be transformed into another metastable structure of 1T'-type upon intercalation of lithium regulated by electric field. Moreover, the metastable 1T' phase persists during the cycle of intercalation and de-intercalation of lithium controlled by electric field, and the electronic properties can be reversibly manipulated with a remarkable change of resistance by four orders of magnitude from the insulating 1T'-LiMoS2 to superconducting 1T'-MoS2. Such reversible and dramatic changes in electronic properties provide intriguing opportunities for development of novel nanodevices with highly tunable characteristics under electric field.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26958]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Shang, C.,Lei, B.,Zhuo, W. Z.,et al. Structural and electronic phase transitions driven by electric field in metastable MoS2 thin flakes[J]. PHYSICAL REVIEW B,2019,100(2).
APA	Shang, C..,Lei, B..,Zhuo, W. Z..,Zhang, Q..,Zhu, C. S..,...&Chen, X. H..(2019).Structural and electronic phase transitions driven by electric field in metastable MoS2 thin flakes.PHYSICAL REVIEW B,100(2).
MLA	Shang, C.,et al."Structural and electronic phase transitions driven by electric field in metastable MoS2 thin flakes".PHYSICAL REVIEW B 100.2(2019).