Observation of quantum oscillations near the Mott-Ioffe-Regel limit in CaAs<sub>3</sub>

doi:arXiv:2403.09283

	Observation of quantum oscillations near the Mott-Ioffe-Regel limit in CaAs₃
	Wang, Yuxiang 1,2; Zhao, Minhao 3,4; Zhang, Jinglei 6; Wu, Wenbin 7; Li, Shichao 8,9; Zhang, Yong6,14 ; Jiang, Wenxiang 10; Joseph, Nesta Benno 11; Xu, Liangcai 12,13; Mou, Yicheng 1,2; Yang, Yunkun 3,4; Leng, Pengliang 3,4; Zhang, Yong6,14 ; Pi, Li 6; Suslov, Alexey 15; Ozerov, Mykhaylo 15; Wyzula, Jan 16; Orlita, Milan 16; Zhu, Fengfeng 10; Zhang, Yi 17; Kou, Xufeng14 ; Zhu, Zengwei 12,13; Narayan, Awadhesh 11; Qian, Dong 10; Wen, Jinsheng 8,9; Yuan, Xiang 7,18; Xiu, Faxian 1,2,3,4,5,19,20; Zhang, Cheng 1,2,19
	2024-03-14
发表期刊	ARXIV (IF:16.3[JCR-2023],18.6[5-Year])
ISSN	2095-5138
EISSN	2053-714X
发表状态	已发表
DOI	arXiv:2403.09283
摘要	The Mott-Ioffe-Regel limit sets the lower bound of carrier mean free path for coherent quasiparticle transport.1,2 Metallicity beyond this limit is of great interest because it is often closely related to quantum criticality and unconventional superconductivity.3–5 Progress along this direction mainly focuses on the strange -metal behaviors originating from the evolution of quasiparticle scattering rate such as linear -in -temperature resistivity4, while the quasiparticle coherence phenomena in this regime are much less explored due to the short mean free path at the diffusive bound. Here we report the observation of quantum oscillations from Landau quantization near the Mott-Ioffe-Regel limit in CaAs3. Despite the insulator -like temperature dependence of resistivity, CaAs3 presents giant magnetoresistance and prominent Shubnikov– de Haas oscillations from Fermi surfaces, indicating highly -coherent band transport. In contrast, the quantum oscillation is absent in the magnetic torque. The quasiparticle effective mass increases systematically with magnetic fields, manifesting a much larger value than the expectation given by magneto -infrared spectroscopy. It suggests a strong many -body renormalization effect near Fermi surface. We find that these unconventional behaviors may be explained by the interplay between the mobility edge and the van Hove singularity, which results in the formation of coherent cyclotron orbits emerging at the diffusive bound. Our results call for further study on the electron correlation effect of the van Hove singularity.
关键词	Mott-Ioffe-Regel limit quantum oscillations van Hove singularity mobility edge
URL	查看原文
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[
WOS研究方向	Science & Technology - Other Topics
WOS类目	Physics, Condensed Matter
WOS记录号	PPRN:88140756
出版者	OXFORD UNIV PRESS
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/372946
专题	信息科学与技术学院信息科学与技术学院_PI研究组_寇煦丰组信息科学与技术学院_博士生
通讯作者	Yuan, Xiang; Xiu, Faxian; Zhang, Cheng
作者单位	1.Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China 2.Fudan Univ, Inst Nanoelect Devices & Quantum Comp, Shanghai 200433, Peoples R China 3.Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China 4.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China 5.Shanghai Qi Zhi Inst, 41st Floor,AI Tower,701 Yunjin Rd, Shanghai 200232, Peoples R China 6.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme Condit, Hefei 230031, Peoples R China 7.East China Normal Univ, State Key Lab Precis Spect, Shanghai 200241, Peoples R China 8.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China 9.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China 10.Shanghai Jiao Tong Univ, Sch Phys & Astron, Key Lab Artificial Struct & Quantum Control, Minist Educ, Shanghai 200240, Peoples R China 11.Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, India 12.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China 13.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 14.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China 15.Natl High Magnet Field Lab, Tallahassee, FL 32310, USA 16.Univ Toulouse 3, Univ Grenoble Alpes, INSA Toulouse, LNCMI,CNRS,UPR3228, EMFL 25 rue Martyrs,BP166, F-38042 Grenoble, France 17.Peking Univ, Int Ctr Quantum Mat, Sch Phys, Beijing 100871, Peoples R China 18.East China Normal Univ, Sch Phys & Elect Sci, Shanghai 200241, Peoples R China 19.Fudan Univ, Zhangjiang Fudan Int Innovat Ctr, Shanghai 201210, Peoples R China 20.Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuxiang,Zhao, Minhao,Zhang, Jinglei,et al. Observation of quantum oscillations near the Mott-Ioffe-Regel limit in CaAs₃[J]. ARXIV,2024.
APA	Wang, Yuxiang.,Zhao, Minhao.,Zhang, Jinglei.,Wu, Wenbin.,Li, Shichao.,...&Zhang, Cheng.(2024).Observation of quantum oscillations near the Mott-Ioffe-Regel limit in CaAs₃.ARXIV.
MLA	Wang, Yuxiang,et al."Observation of quantum oscillations near the Mott-Ioffe-Regel limit in CaAs₃".ARXIV (2024).