scholarly journals Electronic structure ofCe2RhIn8: A two-dimensional heavy-fermion system studied by angle-resolved photoemission spectroscopy

2015 ◽  
Vol 91 (16) ◽  
Author(s):  
Rui Jiang ◽  
Daixing Mou ◽  
Chang Liu ◽  
Xin Zhao ◽  
Yongxin Yao ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Heavy Fermion ◽  
Photoemission Spectroscopy ◽  
Two Dimensional ◽  
Fermion System ◽  
Heavy Fermion System ◽  
Angle Resolved Photoemission Spectroscopy

scholarly journals Discovery of Two Families of Vsb-Based Compounds with V-Kagome Lattice

2021 ◽  
Vol 38 (12) ◽  
pp. 127102
Author(s):  
Yuxin Yang ◽  
Wenhui Fan ◽  
Qinghua Zhang ◽  
Zhaoxu Chen ◽  
Xu Chen ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Theoretical Calculations ◽  
Photoemission Spectroscopy ◽  
Two Dimensional ◽  
Kagome Lattice ◽  
Space Group ◽  
Kagomé Lattice ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Nonmagnetic Metals

We report the structure and physical properties of two newly discovered compounds AV8Sb12 and AV6Sb6 (A = Cs, Rb), which have C 2 (space group: Cmmm) and C 3 (space group: R 3 ¯ m ) symmetry, respectively. The basic V-kagome unit appears in both compounds, but stacking differently. A V2Sb2 layer is sandwiched between two V3Sb5 layers in AV8Sb12, altering the V-kagome lattice and lowering the symmetry of kagome layer from hexagonal to orthorhombic. In AV6Sb6, the building block is a more complex slab made up of two half-V3Sb5 layers that are intercalated by Cs cations along the c-axis. Transport property measurements demonstrate that both compounds are nonmagnetic metals, with carrier concentrations at around 1021 cm−3. No superconductivity has been observed in CsV8Sb12 above 0.3 K under in situ pressure up to 46 GPa. Compared to CsV3Sb5, theoretical calculations and angle-resolved photoemission spectroscopy reveal a quasi-two-dimensional electronic structure in CsV8Sb12 with C 2 symmetry and no van Hove singularities near the Fermi level. Our findings will stimulate more research into V-based kagome quantum materials.

scholarly journals Topological phase in a two-dimensional metallic heavy-fermion system

2013 ◽  
Vol 87 (16) ◽  
Author(s):  
Tsuneya Yoshida ◽  
Robert Peters ◽  
Satoshi Fujimoto ◽  
Norio Kawakami
Keyword(s):  
Heavy Fermion ◽  
Topological Phase ◽  
Two Dimensional ◽  
Fermion System ◽  
Heavy Fermion System

The Electronic Structure of the Heavy-Fermion System URu2Si2

1992 ◽  
Vol 105-110 ◽  
pp. 377-384
Author(s):  
P.E. Mijnarends ◽  
G.J. Rozing ◽  
D.D. Koelling ◽  
A.A. Menovsky
Keyword(s):  
Electronic Structure ◽  
Heavy Fermion ◽  
Fermion System ◽  
Heavy Fermion System

Peculiarities of the electronic structure of Yb, In, Ag, and Cu in the heavy-fermion system YbIn1−x AgxCu4

2000 ◽  
Vol 42 (7) ◽  
pp. 1199-1203
Author(s):  
V. A. Shaburov ◽  
A. E. Sovestnov ◽  
Yu. P. Smirnov ◽  
A. V. Tyunis ◽  
A. V. Golubkov
Keyword(s):  
Electronic Structure ◽  
Heavy Fermion ◽  
Fermion System ◽  
Heavy Fermion System

GROWTH MODE AND ELECTRONIC STRUCTURE OF SILVER ON ${\rm ZnO}(10\overline{1}0)$

2006 ◽  
Vol 13 (02n03) ◽  
pp. 227-233
Author(s):  
K. OZAWA ◽  
T. SATO ◽  
M. KATO ◽  
K. EDAMOTO
Keyword(s):  
Electronic Structure ◽  
Synchrotron Radiation ◽  
Growth Mode ◽  
Photoemission Spectroscopy ◽  
Two Dimensional ◽  
Ordered Structure ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Ag Clusters ◽  
Ag Cluster ◽  
Low Coverage

The growth mode and electronic structure of the vapor-deposited Ag overlayer on the [Formula: see text] surface is investigated by angle-resolved photoemission spectroscopy utilizing synchrotron radiation. The coverage dependent measurements of the two-dimensional band structure by the Ag 4d states reveal that the bands with a dispersing feature are developed from the low coverage region, suggesting that the Ag adatoms aggregate to form clusters with a laterally ordered structure. The Ag clusters grow in size with increasing the Ag coverage whereas the ordered atomic structure of the Ag cluster is preserved. From the analysis of the Ag 5sp band, the Ag clusters have a nonmetallic electronic structure at low coverages, and the metallic nature is developed as the size of the clusters becomes enlarged.

Electronic structure of Yb, Ag, and Cu in the heavy-fermion system YbCu5−x Agx

2001 ◽  
Vol 43 (8) ◽  
pp. 1420-1425 ◽  
Author(s):  
V. A. Shaburov ◽  
A. E. Sovestnov ◽  
Yu. P. Smirnov ◽  
A. V. Tyunis ◽  
A. V. Golubkov
Keyword(s):  
Electronic Structure ◽  
Heavy Fermion ◽  
Fermion System ◽  
Heavy Fermion System

Bilayer 3He: A Simple Two-Dimensional Heavy-Fermion System with Quantum Criticality

Science ◽  
2007 ◽  
Vol 317 (5843) ◽  
pp. 1356-1359 ◽  
Author(s):  
M. Neumann ◽  
J. Nyeki ◽  
B. Cowan ◽  
J. Saunders
Keyword(s):  
Heavy Fermion ◽  
Quantum Criticality ◽  
Two Dimensional ◽  
Fermion System ◽  
Heavy Fermion System
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