Observation of thickness-tuned universality class in superconducting beta - W thin films

doi:10.1016/j.scib.2021.05.023

	Observation of thickness-tuned universality class in superconducting beta - W thin films
	Huang, Ce 1,2,3; Zhang, Enze 1,2,3; Zhang, Yong 4; Zhang, Jinglei 5; Xiu, Faxian 1,2,3,6,7; Liu, Haiwen 8; Xie, Xiaoyi 1,2,3; Ai, Linfeng 1,2,3; Yang, Yunkun 1,2,3; Zhao, Minhao 1,2,3
刊名	SCIENCE BULLETIN
	2021-09-30
卷号	66
关键词	Quenched disorder Quantum criticality Universality class quantum Griffiths singularity
ISSN号	2095-9273
DOI	10.1016/j.scib.2021.05.023
通讯作者	Xiu, Faxian(Faxian@fudan.edu.cn) ; Liu, Haiwen(Haiwen.liu@bnu.edu.cn)
英文摘要	The interplay between quenched disorder and critical behavior in quantum phase transitions is conceptually fascinating and of fundamental importance for understanding phase transitions. However, it is still unclear whether or not the quenched disorder influences the universality class of quantum phase transitions. More crucially, the absence of superconducting-metal transitions under in-plane magnetic fields in 2D superconductors imposes constraints on the universality of quantum criticality. Here, we observe the thickness-tuned universality class of superconductor-metal transition by changing the disorder strength in b - W films with varying thickness. The finite-size scaling uncovers the switch of universality class: quantum Griffiths singularity to multiple quantum criticality at a critical thickness of tcL1 ti 8 nm and then from multiple quantum criticality to single criticality at tcL2 ti 16 nm. Moreover, the superconducting-metal transition is observed for the first time under in-plane magnetic fields and the universality class is changed at tc1 ti 8 nm. The observation of thickness-tuned universality class under both out-of-plane and in-plane magnetic fields provides broad information for the disorder effect on superconducting-metal transitions and quantum criticality. (c) 2021 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
资助项目	National Key Research and Development Program of China[2017YFA0303302] ; National Key Research and Development Program of China[2018YFA030560] ; National Key Research and Development Program of China[2017YFA0303301] ; National Natural Science Foundation of China[11934005] ; National Natural Science Foundation of China[11474058] ; National Natural Science Foundation of China[11874116] ; National Natural Science Foundation of China[11674028] ; National Natural Science Foundation of China[11534001] ; National Natural Science Foundation of China[U1932154] ; Science and Technology Commission of Shanghai[19511120500] ; Shanghai Municipal Science and Technology Major Project[2019SHZDZX01] ; Program of Shanghai Academic/Technology Research Leader[20XD1400200] ; National Science Foundation[DMR-1644779] ; National Science Foundation[DMR-1157490] ; State of Florida ; China Postdoctoral Innovative Talents Support Program[BX20190085] ; China Postdoctoral Science Foundation[2019 M661331] ; Scientific Instrument Developing Project of CAS[YJKYYQ20180059] ; Youth Innovation Promotion Association CAS[2018486]
WOS关键词	QUANTUM PHASE-TRANSITION ; CRITICAL-FIELD ; CRITICAL-BEHAVIOR ; METAL TRANSITION ; CRITICALITY ; TUNGSTEN ; MODEL
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000692530800005
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Science and Technology Commission of Shanghai ; Shanghai Municipal Science and Technology Major Project ; Program of Shanghai Academic/Technology Research Leader ; National Science Foundation ; State of Florida ; China Postdoctoral Innovative Talents Support Program ; China Postdoctoral Science Foundation ; Scientific Instrument Developing Project of CAS ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125309]
专题	中国科学院合肥物质科学研究院
通讯作者	Xiu, Faxian; Liu, Haiwen
作者单位	1.Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China 2.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China 3.Fudan Univ, Zhangjiang Fudan Int Innovat Ctr, Shanghai 201210, Peoples R China 4.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China 5.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys ExtremeC, High Magnet Field Lab, Hefei 230031, Peoples R China 6.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 7.Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China 8.Beijing Normal Univ, Ctr Adv Quantum Studies, Dept Phys, Beijing 100875, Peoples R China 9.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China 10.Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangdong Prov Key Lab Display Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Huang, Ce,Zhang, Enze,Zhang, Yong,et al. Observation of thickness-tuned universality class in superconducting beta - W thin films[J]. SCIENCE BULLETIN,2021,66.
APA	Huang, Ce.,Zhang, Enze.,Zhang, Yong.,Zhang, Jinglei.,Xiu, Faxian.,...&Xie, X. C..(2021).Observation of thickness-tuned universality class in superconducting beta - W thin films.SCIENCE BULLETIN,66.
MLA	Huang, Ce,et al."Observation of thickness-tuned universality class in superconducting beta - W thin films".SCIENCE BULLETIN 66(2021).