Tunneling spectra of superconductor- Kitaev layer -metal junctions

doi:10.1016/j.physb.2021.413483

HFCAS OpenIR

	Tunneling spectra of superconductor- Kitaev layer -metal junctions
	Lyu, Jing-Jing 1,2; Jia, Shi-Qing 1,2; Zou, Liang-Jian1,2
	2022-01-15
发表期刊	PHYSICA B-CONDENSED MATTER
ISSN	0921-4526
通讯作者	Zou, Liang-Jian(zou@theory.issp.ac.cn)
摘要	In this letter we construct a superconductor-Kitaev quantum spin liquid (QSL)-metal/semimetal tunnelling junction. By the tunnelling current, conductance, and d2I/dV2, we investigate the spin dynamics of the Kitaev QSL. We show that the d2I/dV2 of the tunneling current has three characteristics: the spectral gap at 0.26K, the positions of peak and dip at omega approximate to 0.5K and 2.26K, respectively, except for an energy shift of superconducting gap Delta = 0.5K. These characteristics are the same as the spin correlations function of the Kitaev QSL. These results show that the tunnelling junction method could be a powerful tool in revealing the exotic spin excitation properties of the QSL materials.
关键词	Heterojunction Quantum spin liquid Kitaev quantum spin liquid model Majorana fermions
DOI	10.1016/j.physb.2021.413483
关键词[WOS]	QUANTUM ; ANYONS
收录类别	SCI
语种	英语
资助项目	NSFC of China[11774350] ; NSFC of China[11534010]
项目资助者	NSFC of China
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
WOS记录号	WOS:000726838000010
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/126801
专题	中国科学院合肥物质科学研究院
通讯作者	Zou, Liang-Jian
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Lyu, Jing-Jing,Jia, Shi-Qing,Zou, Liang-Jian. Tunneling spectra of superconductor- Kitaev layer -metal junctions[J]. PHYSICA B-CONDENSED MATTER,2022,625.
APA	Lyu, Jing-Jing,Jia, Shi-Qing,&Zou, Liang-Jian.(2022).Tunneling spectra of superconductor- Kitaev layer -metal junctions.PHYSICA B-CONDENSED MATTER,625.
MLA	Lyu, Jing-Jing,et al."Tunneling spectra of superconductor- Kitaev layer -metal junctions".PHYSICA B-CONDENSED MATTER 625(2022).