scholarly journals Quantum oscillations in a lead chalcogenide three-dimensional Dirac system

2017 ◽  
Vol 95 (3) ◽  
Author(s):  
Filip Orbanić ◽  
Mario Novak ◽  
Mirko Baćani ◽  
Ivan Kokanović
Keyword(s):  
Three Dimensional ◽  
Dirac System ◽  
Lead Chalcogenide ◽  
Quantum Oscillations

scholarly journals Three-dimensional Dirac semimetal and magnetic quantum oscillations in Cd3As2

2017 ◽  
Vol 903 ◽  
pp. 012038 ◽  
Author(s):  
Filip Orbanić ◽  
Mario Novak ◽  
Nikola Biliškov ◽  
Sanda Pleslić ◽  
Ivan Kokanović
Keyword(s):  
Three Dimensional ◽  
Quantum Oscillations ◽  
Dirac Semimetal ◽  
Magnetic Quantum Oscillations

scholarly journals Quantum and transport mobilities of a Na3Bi -based three-dimensional Dirac system

2019 ◽  
Vol 99 (23) ◽  
Author(s):  
H. F. Yuan ◽  
W. Xu ◽  
X. N. Zhao ◽  
D. Song ◽  
G. R. Zhang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Dirac System

scholarly journals Three-Dimensional Arrangement and Connectivity of Lead-Chalcogenide Nanoparticle Assemblies for Next Generation Photovoltaics

2014 ◽  
Vol 20 (S3) ◽  
pp. 542-543
Author(s):  
Benjamin H. Savitzky ◽  
Kevin Whitham ◽  
Kaifu Bian ◽  
Robert Hovden ◽  
Tobias Hanrath ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Next Generation ◽  
Lead Chalcogenide ◽  
Nanoparticle Assemblies

scholarly journals Orbit topology analyzed from π phase shift of magnetic quantum oscillations in three-dimensional Dirac semimetal

2021 ◽  
Vol 118 (29) ◽  
pp. e2023027118
Author(s):  
Sang-Eon Lee ◽  
Myeong-jun Oh ◽  
Sanghyun Ji ◽  
Jinsu Kim ◽  
Jin-Hyeon Jun ◽  
...  
Keyword(s):  
Phase Shift ◽  
Three Dimensional ◽  
Dirac Fermion ◽  
Quantum Oscillations ◽  
Dirac Semimetal ◽  
Single Orbit ◽  
Dirac Materials ◽  
Dirac Semimetals ◽  
Cyclotron Mass ◽  
Magnetic Quantum Oscillations

With the emergence of Dirac fermion physics in the field of condensed matter, magnetic quantum oscillations (MQOs) have been used to discern the topology of orbits in Dirac materials. However, many previous researchers have relied on the single-orbit Lifshitz–Kosevich (LK) formula, which overlooks the significant effect of degenerate orbits on MQOs. Since the single-orbit LK formula is valid for massless Dirac semimetals with small cyclotron masses, it is imperative to generalize the method applicable to a wide range of Dirac semimetals, whether massless or massive. This report demonstrates how spin-degenerate orbits affect the phases in MQOs of three-dimensional massive Dirac semimetal, NbSb2. With varying the direction of the magnetic field, an abrupt π phase shift is observed due to the interference between the spin-degenerate orbits. We investigate the effect of cyclotron mass on the π phase shift and verify its close relation to the phase from the Zeeman coupling. We find that the π phase shift occurs when the cyclotron mass is half of the electron mass, indicating the effective spin gyromagnetic ratio as gs = 2. Our approach is not only useful for analyzing MQOs of massless Dirac semimetals with a small cyclotron mass but also can be used for MQOs in massive Dirac materials with degenerate orbits, especially in topological materials with a sufficiently large cyclotron mass. Furthermore, this method provides a useful way to estimate the precise gs value of the material.

scholarly journals Discovery of log-periodic oscillations in ultraquantum topological materials

2018 ◽  
Vol 4 (11) ◽  
pp. eaau5096 ◽  
Author(s):  
Huichao Wang ◽  
Haiwen Liu ◽  
Yanan Li ◽  
Yongjie Liu ◽  
Junfeng Wang ◽  
...  
Keyword(s):  
Bound States ◽  
Three Dimensional ◽  
Physical Nature ◽  
Quantum Limit ◽  
Periodic Oscillations ◽  
Quantum Oscillations ◽  
Topological Materials ◽  
New Type ◽  
New Perspective ◽  
Theoretical Analyses

Quantum oscillations are usually the manifestation of the underlying physical nature in condensed matter systems. Here, we report a new type of log-periodic quantum oscillations in ultraquantum three-dimensional topological materials. Beyond the quantum limit (QL), we observe the log-periodic oscillations involving up to five oscillating cycles (five peaks and five dips) on the magnetoresistance of high-quality single-crystal ZrTe5, virtually showing the clearest feature of discrete scale invariance (DSI). Further, theoretical analyses show that the two-body quasi-bound states can be responsible for the DSI feature. Our work provides a new perspective on the ground state of topological materials beyond the QL.

scholarly journals The de Haas-van Alphen quantum oscillations in a three-dimensional Dirac semimetal TiSb2

2020 ◽  
Vol 116 (14) ◽  
pp. 142103 ◽  
Author(s):  
Wei Xia ◽  
Xianbiao Shi ◽  
Yushu Wang ◽  
Wenna Ge ◽  
Hao Su ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Quantum Oscillations ◽  
Dirac Semimetal
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