Breakdown of Fermi liquid theory in topological multi-Weyl semimetals

doi:10.1103/PhysRevB.98.205113

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院强磁场科学中心

	Breakdown of Fermi liquid theory in topological multi-Weyl semimetals
	Wang, Jing-Rong 1; Liu, Guo-Zhu 2; Zhang, Chang-Jin 1,3
刊名	PHYSICAL REVIEW B
	2018-11-06
卷号	98 期号:20 页码:27
ISSN号	2469-9950
DOI	10.1103/PhysRevB.98.205113
通讯作者	Liu, Guo-Zhu(gzliu@ustc.edu.cn) ; Zhang, Chang-Jin(zhangcj@hmfl.ac.cn)
英文摘要	Fermi liquid theory works very well in most normal metals, but is found violated in many strongly correlated electron systems, such as cuprate and heavy-fermion superconductors. A widely accepted criterion is that the Fermi liquid theory is valid when the interaction-induced fermion damping rate approaches zero more rapidly than the energy. Otherwise, it is invalid. Here, we demonstrate that this criterion breaks down in topological double- and triple-Weyl semimetals. Renormalization group analysis reveals that, although the damping rate of double- and triple-Weyl fermions induced by the Coulomb interaction approaches zero more rapidly than the energy, the quasiparticle residue vanishes and the Fermi liquid theory is invalid. This behavior indicates a weaker-than-marginal violation of the Fermi liquid theory. Such an unconventional non-Fermi liquid state originates from the special dispersion of double- and triple-Weyl fermions, and is qualitatively different from all the other Fermi liquid and non-Fermi liquid states. The predicted properties of the fermion damping rate and the spectral function can be probed by the angle-resolved photoemission spectroscopy. The density of states, specific heat, and conductivities are also calculated and analyzed after incorporating the corrections induced by the Coulomb interaction.
资助项目	National Key R&D Program of China[2016YFA0300404] ; National Key R&D Program of China[2017YFA0403600] ; National Natural Science Foundation of China[11574285] ; National Natural Science Foundation of China[11504379] ; National Natural Science Foundation of China[11674327] ; National Natural Science Foundation of China[U1532267] ; National Natural Science Foundation of China[U1832209] ; Natural Science Foundation of Anhui Province[1608085MA19]
WOS关键词	HIGH-TEMPERATURE SUPERCONDUCTIVITY ; PHASE-TRANSITIONS ; LANDAU-LEVEL ; NORMAL-STATE ; GRAPHENE ; BI2SR2CACU2O8+DELTA ; RENORMALIZATION ; BEHAVIOR ; PHYSICS ; CD3AS2
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000449392400003
资助机构	National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/39983]
专题	合肥物质科学研究院_中科院强磁场科学中心
通讯作者	Liu, Guo-Zhu; Zhang, Chang-Jin
作者单位	1.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China 3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jing-Rong,Liu, Guo-Zhu,Zhang, Chang-Jin. Breakdown of Fermi liquid theory in topological multi-Weyl semimetals[J]. PHYSICAL REVIEW B,2018,98(20):27.
APA	Wang, Jing-Rong,Liu, Guo-Zhu,&Zhang, Chang-Jin.(2018).Breakdown of Fermi liquid theory in topological multi-Weyl semimetals.PHYSICAL REVIEW B,98(20),27.
MLA	Wang, Jing-Rong,et al."Breakdown of Fermi liquid theory in topological multi-Weyl semimetals".PHYSICAL REVIEW B 98.20(2018):27.