scholarly journals Quantum oscillations probe the Fermi surface topology of the nodal-line semimetal CaAgAs

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Y. H. Kwan ◽  
P. Reiss ◽  
Y. Han ◽  
M. Bristow ◽  
D. Prabhakaran ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Nodal Line ◽  
Surface Topology ◽  
Quantum Oscillations ◽  
Fermi Surface Topology

Signatures of Fermi surface topology change in the nodal-line semimetal ZrSiSe1−xTex

2021 ◽  
Vol 103 (16) ◽  
Author(s):  
Jiangpeng Song ◽  
Meng Song ◽  
Zhihao Li ◽  
Jian Wang ◽  
Yihao Wang ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Nodal Line ◽  
Surface Topology ◽  
Topology Change ◽  
Fermi Surface Topology

scholarly journals Quantum oscillations and the Fermi surface topology of the Weyl semimetal NbP

2016 ◽  
Vol 93 (12) ◽  
Author(s):  
J. Klotz ◽  
Shu-Chun Wu ◽  
Chandra Shekhar ◽  
Yan Sun ◽  
Marcus Schmidt ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Surface Topology ◽  
Quantum Oscillations ◽  
Weyl Semimetal ◽  
Fermi Surface Topology

scholarly journals Ultrafast dynamical Lifshitz transition

2021 ◽  
Vol 7 (17) ◽  
pp. eabd9275
Author(s):  
Samuel Beaulieu ◽  
Shuo Dong ◽  
Nicolas Tancogne-Dejean ◽  
Maciej Dendzik ◽  
Tommaso Pincelli ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Colossal Magnetoresistance ◽  
Surface Topology ◽  
Strongly Correlated ◽  
Many Body ◽  
Time Resolved ◽  
Weyl Semimetal ◽  
Lifshitz Transition ◽  
Fermi Surface Topology ◽  
Many Body Systems

Fermi surface is at the heart of our understanding of metals and strongly correlated many-body systems. An abrupt change in the Fermi surface topology, also called Lifshitz transition, can lead to the emergence of fascinating phenomena like colossal magnetoresistance and superconductivity. While Lifshitz transitions have been demonstrated for a broad range of materials by equilibrium tuning of macroscopic parameters such as strain, doping, pressure, and temperature, a nonequilibrium dynamical route toward ultrafast modification of the Fermi surface topology has not been experimentally demonstrated. Combining time-resolved multidimensional photoemission spectroscopy with state-of-the-art TDDFT+U simulations, we introduce a scheme for driving an ultrafast Lifshitz transition in the correlated type-II Weyl semimetal Td-MoTe2. We demonstrate that this nonequilibrium topological electronic transition finds its microscopic origin in the dynamical modification of the effective electronic correlations. These results shed light on a previously unexplored ultrafast scheme for controlling the Fermi surface topology in correlated quantum materials.

Pressure-induced change of the Fermi surface topology in Al-based solid solutions

2003 ◽  
Vol 45 (12) ◽  
pp. 2213-2217 ◽  
Author(s):  
A. S. Mikhailushkin ◽  
É. I. Isaev ◽  
Yu. Kh. Vekilov ◽  
S. I. Simak
Keyword(s):  
Fermi Surface ◽  
Solid Solutions ◽  
Surface Topology ◽  
Fermi Surface Topology

scholarly journals Fermi surface topology and large magnetoresistance in the topological semimetal candidate PrBi

2019 ◽  
Vol 99 (24) ◽  
Author(s):  
Amit Vashist ◽  
R. K. Gopal ◽  
Divya Srivastava ◽  
M. Karppinen ◽  
Yogesh Singh
Keyword(s):  
Fermi Surface ◽  
Surface Topology ◽  
Topological Semimetal ◽  
Fermi Surface Topology

scholarly journals Transport signatures of Fermi surface topology change in BiTeI

2015 ◽  
Vol 91 (20) ◽  
Author(s):  
Linda Ye ◽  
Joseph G. Checkelsky ◽  
Fumitaka Kagawa ◽  
Yoshinori Tokura
Keyword(s):  
Fermi Surface ◽  
Surface Topology ◽  
Topology Change ◽  
Fermi Surface Topology
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