Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb2

doi:10.1103/PhysRevLett.123.106402

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb2
	Chen, QY ; Luo, XB ; Xie, DH ; Li, ML ; Ji, XY ; Zhou, R ; Huang, YB ; Zhang, W ; Feng, W ; Zhang, Y
刊名	PHYSICAL REVIEW LETTERS
	2019
卷号	123 期号:10 页码:-
关键词	CYLINDRICAL FERMI SURFACES BRILLOUIN-ZONE ITINERANT SYSTEM TRANSITION
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.123.106402
文献子类	期刊论文
英文摘要	In heavy-fennion compounds, the dual character of f electrons underlies their rich and often exotic properties like fragile heavy quasiparticles, a variety of magnetic orders and unconventional superconductivity. 5f-electron actinide materials provide a rich setting to elucidate the larger and outstanding issue of the competition between magnetic order and Kondo entanglement and, more generally, the interplay among different channels of interactions in correlated electron systems. Here, by using angle-resolved photoemission spectroscopy, we present the detailed electronic structure of USb2 and observe two different kinds of nearly flat bands in the antiferromagnetic state of USb2. Polarization-dependent measurements show that these electronic states are derived from 5f orbitals with different characters; in addition, further temperature-dependent measurements reveal that one of them is driven by the Kondo correlations between the 5f electrons and conduction electrons, while the other reflects the dominant role of the magnetic order. Our results on the low-energy electronic excitations of USb(2 )implicate orbital selectivity as an important new ingredient for the competition between Kondo correlations and magnetic order and, by extension, in the rich landscape of quantum phases for strongly correlated f electron systems.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32151]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Sci & Technol Surface Phys & Chem Lab, Mianyang 621908, Sichuan, Peoples R China; 2.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China; 4.Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA; 5.Rice Univ, Rice Ctr Quantum Mat, Houston, TX 77005 USA
推荐引用方式 GB/T 7714	Chen, QY,Luo, XB,Xie, DH,et al. Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb2[J]. PHYSICAL REVIEW LETTERS,2019,123(10):-.
APA	Chen, QY.,Luo, XB.,Xie, DH.,Li, ML.,Ji, XY.,...&Tan, SY.(2019).Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb2.PHYSICAL REVIEW LETTERS,123(10),-.
MLA	Chen, QY,et al."Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb2".PHYSICAL REVIEW LETTERS 123.10(2019):-.