scholarly journals Nearly massless Dirac fermions and strong Zeeman splitting in the nodal-line semimetal ZrSiS probed by de Haas–van Alphen quantum oscillations

2017 ◽  
Vol 96 (4) ◽  
Author(s):  
Jin Hu ◽  
Zhijie Tang ◽  
Jinyu Liu ◽  
Yanglin Zhu ◽  
Jiang Wei ◽  
...  
Keyword(s):  
Zeeman Splitting ◽  
Nodal Line ◽  
Dirac Fermions ◽  
Quantum Oscillations

de Haas-van Alphen Quantum Oscillations in BaSn3 Superconductor with Multiple Dirac Fermions

2020 ◽  
Vol 37 (8) ◽  
pp. 087101
Author(s):  
Gaoning Zhang ◽  
Xianbiao Shi ◽  
Xiaolei Liu ◽  
Wei Xia ◽  
Hao Su ◽  
...  
Keyword(s):  
Dirac Fermions ◽  
Quantum Oscillations

scholarly journals Magnetoinfrared Spectroscopy of Landau Levels and Zeeman Splitting of Three-Dimensional Massless Dirac Fermions inZrTe5

2015 ◽  
Vol 115 (17) ◽  
Author(s):  
R. Y. Chen ◽  
Z. G. Chen ◽  
X.-Y. Song ◽  
J. A. Schneeloch ◽  
G. D. Gu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Zeeman Splitting ◽  
Landau Levels ◽  
Dirac Fermions

scholarly journals Ultrasensitive and Self‐Powered Terahertz Detection Driven by Nodal‐Line Dirac Fermions and Van der Waals Architecture

2021 ◽  
pp. 2102088
Author(s):  
Libo Zhang ◽  
Zhuo Dong ◽  
Lin Wang ◽  
Yibin Hu ◽  
Cheng Guo ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Nodal Line ◽  
Dirac Fermions ◽  
Terahertz Detection ◽  
Self Powered

scholarly journals Quantum oscillations in nodal line systems

2018 ◽  
Vol 97 (16) ◽  
Author(s):  
Hui Yang ◽  
Roderich Moessner ◽  
Lih-King Lim
Keyword(s):  
Nodal Line ◽  
Quantum Oscillations

scholarly journals Vanishing quantum oscillations in Dirac semimetal ZrTe5

2018 ◽  
Vol 115 (37) ◽  
pp. 9145-9150 ◽  
Author(s):  
Jingyue Wang ◽  
Jingjing Niu ◽  
Baoming Yan ◽  
Xinqi Li ◽  
Ran Bi ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Berry Phase ◽  
Zeeman Splitting ◽  
Arbitrary Field ◽  
Quantum Oscillations ◽  
Topological Materials ◽  
Dirac Semimetal ◽  
Zero Effect ◽  
The Magnetic Field

One of the characteristics of topological materials is their nontrivial Berry phase. Experimental determination of this phase largely relies on a phase analysis of quantum oscillations. We study the angular dependence of the oscillations in a Dirac material ZrTe5 and observe a striking spin-zero effect (i.e., vanishing oscillations accompanied with a phase inversion). This indicates that the Berry phase in ZrTe5 remains nontrivial for arbitrary field direction, in contrast with previous reports. The Zeeman splitting is found to be proportional to the magnetic field based on the condition for the spin-zero effect in a Dirac band. Moreover, it is suggested that the Dirac band in ZrTe5 is likely transformed into a line node other than Weyl points for the field directions at which the spin zero occurs. The results underline a largely overlooked spin factor when determining the Berry phase from quantum oscillations.

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

scholarly journals Rules for Phase Shifts of Quantum Oscillations in Topological Nodal-Line Semimetals

2018 ◽  
Vol 120 (14) ◽  
Author(s):  
Cequn Li ◽  
C. M. Wang ◽  
Bo Wan ◽  
Xiangang Wan ◽  
Hai-Zhou Lu ◽  
...  
Keyword(s):  
Phase Shifts ◽  
Nodal Line ◽  
Quantum Oscillations

scholarly journals Searching for a promising topological Dirac nodal-line semimetal by angle resolved photoemission spectroscopy

2021 ◽  
Author(s):  
Zhengwang Cheng ◽  
Zhilong Hu ◽  
Shaojian Li ◽  
Xinguo Ma ◽  
Zhifeng Liu ◽  
...  
Keyword(s):  
Band Structure ◽  
Heterogeneous Catalysts ◽  
Nodal Line ◽  
Photoemission Spectroscopy ◽  
High Symmetry ◽  
Dirac Fermions ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Topological Semimetals ◽  
Valence Bands ◽  
Band Crossing

Abstract Topological semimetals, in which conduction and valence bands cross each other at either discrete points or along a closed loop with symmetry protected in the momentum space, exhibited great potential in applications of optical devices as well as heterogeneous catalysts or antiferromagnetic spintronics, especially when the crossing points/lines matches Fermi level (EF). It is intriguing to find the “ideal” topological semimetal material, in which has a band structure with Dirac band-crossing located at EF without intersected by other extraneous bands. Here, by using angle resolved photoemission spectroscopy (ARPES), we investigate the band structure of the so-called “square-net” topological material ZrGeS. The Brillouin zone (BZ) mapping shows the Fermi surface (FS) of ZrGeS is composed by a diamond-shaped nodal line loop at the center of BZ and small electron-like Fermi pockets around X point. The Dirac nodal line band-crossing located right at EF, and shows clearly the linear Dirac band dispersions within a large energy range >1.5 eV below EF, without intersected with other bands. The obtained Fermi velocities and effective masses along Γ-X, Γ-M and M-X high symmetry directions were 4.5 ~ 5.9 eV•Å and 0 ~ 0.50 me, revealing an anisotropic electronic property. Our results suggest that ZrGeS, as a promising topological nodal line semimetal (TNLSM), could provide a promising platform to investigate the Dirac-fermions related physics and the applications of topological devising.

scholarly journals Quantum oscillations of the magnetic torque in the nodal-line Dirac semimetal ZrSiS

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
F. Orbanić ◽  
M. Novak ◽  
Z. Glumac ◽  
A. McCollam ◽  
L. Tang ◽  
...  
Keyword(s):  
Nodal Line ◽  
Magnetic Torque ◽  
Quantum Oscillations ◽  
Dirac Semimetal

scholarly journals Quantum oscillations in the noncentrosymmetric superconductor and topological nodal-line semimetal PbTaSe2

2019 ◽  
Vol 99 (10) ◽  
Author(s):  
Xitong Xu ◽  
Zhibo Kang ◽  
Tay-Rong Chang ◽  
Hsin Lin ◽  
Guang Bian ◽  
...  
Keyword(s):  
Nodal Line ◽  
Quantum Oscillations ◽  
Noncentrosymmetric Superconductor
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