Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer

2007 ◽  
Vol 78 (8) ◽  
pp. 083105 ◽  
Author(s):  
S. Mathias ◽  
L. Miaja-Avila ◽  
M. M. Murnane ◽  
H. Kapteyn ◽  
M. Aeschlimann ◽  
...  
ACS Nano ◽  
2019 ◽  
Author(s):  
Matthew J. Hamer ◽  
Johanna Zultak ◽  
Anastasia V. Tyurnina ◽  
Viktor Zólyomi ◽  
Daniel Terry ◽  
...  

2021 ◽  
Vol 38 (12) ◽  
pp. 127102
Author(s):  
Yuxin Yang ◽  
Wenhui Fan ◽  
Qinghua Zhang ◽  
Zhaoxu Chen ◽  
Xu Chen ◽  
...  

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.


1997 ◽  
Vol 237-238 ◽  
pp. 377-379
Author(s):  
T. Yokoya ◽  
A. Chainani ◽  
T. Takahashi ◽  
H. Ding ◽  
J.C. Campuzano ◽  
...  

Author(s):  
A. Trützschler ◽  
M. Huth ◽  
C.-T. Chiang ◽  
F. O. Schumann ◽  
J. Kirschner ◽  
...  

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