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Title: π Berry phase and Zeeman splitting of Weyl semimetal TaP

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep18674· OSTI ID:1360142
 [1];  [1];  [2];  [3];  [3];  [1];  [1];  [2];  [1];  [3];  [1]
  1. Tulane Univ., New Orleans, LA (United States)
  2. Florida State Univ., Tallahassee, FL (United States)
  3. Univ. of New Orleans, New Orleans, LA (United States)

Here, the recent breakthrough in the discovery of Weyl fermions in monopnictide semimetals provides opportunities to explore the exotic properties of relativistic fermions in condensed matter. The chiral anomaly-induced negative magnetoresistance and π Berry phase are two fundamental transport properties associated with the topological characteristics of Weyl semimetals. Since monopnictide semimetals are multiple-band systems, resolving clear Berry phase for each Fermi pocket remains a challenge. Here we report the determination of Berry phases of multiple Fermi pockets of Weyl semimetal TaP through high field quantum transport measurements. We show our TaP single crystal has the signatures of a Weyl state, including light effective quasiparticle masses, ultrahigh carrier mobility, as well as negative longitudinal magnetoresistance. Furthermore, we have generalized the Lifshitz-Kosevich formula for multiple-band Shubnikov-de Haas (SdH) oscillations and extracted the Berry phases of π for multiple Fermi pockets in TaP through the direct fits of the modified LK formula to the SdH oscillations. In high fields, we also probed signatures of Zeeman splitting, from which the Landé g-factor is extracted.

Research Organization:
Louisiana Board of Regents, Baton Rouge, LA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0012432
OSTI ID:
1360142
Journal Information:
Scientific Reports, Vol. 6, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 110 works
Citation information provided by
Web of Science

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Cited By (47)

Magnetic Susceptibility of Topological Semimetals journal August 2019
Quantum transport in topological semimetals under magnetic fields (II) journal April 2019
A magnetic topological semimetal Sr1−yMn1−zSb2 (y, z < 0.1) journal July 2017
Quantum limit transport and destruction of the Weyl nodes in TaAs journal June 2018
Topological quantum properties of chiral crystals journal October 2018
Galvanomagnetic properties of the putative type-II Dirac semimetal PtTe2 journal July 2018
Anomalous electronic structure and magnetoresistance in TaAs2 journal June 2016
Berry phase and band structure analysis of the Weyl semimetal NbP journal September 2016
Klein tunneling in Weyl semimetals under the influence of magnetic field journal December 2016
Evidence for trivial Berry phase and absence of chiral anomaly in semimetal NbP journal April 2017
Anisotropic thermoelectric properties of Weyl semimetal NbX (X = P and As): a potential thermoelectric material journal January 2019
Peculiar behavior of magnetoresistance in HgSe single crystal with low electron concentration journal February 2018
The Hartman effect in Weyl semimetals journal August 2018
Magneto-resistance in pristine and irradiated TaAs 2 journal April 2019
Magnetotransport evidence for topological phase transition in a Dirac semimetal journal October 2019
Quantum transport in Dirac and Weyl semimetals: a review journal May 2017
Nontrivial topology of bulk HgSe from the study of cyclotron effective mass, electron mobility and phase shift of Shubnikov–de Haas oscillations journal January 2019
Emergence of intrinsic superconductivity below 1.178 K in the topologically non-trivial semimetal state of CaSn 3 journal April 2019
Tuning the electrical transport of type II Weyl semimetal WTe 2 nanodevices by Mo doping journal February 2018
Optical signatures of the chiral anomaly in mirror-symmetric Weyl semimetals journal August 2019
Berry curvature induced thermopower in type-I and type-II Weyl semimetals journal August 2019
Evidence from transport measurements for YR h 6 G e 4 being a triply degenerate nodal semimetal journal January 2020
Electron scattering in tantalum monoarsenide journal February 2017
Observation of negative longitudinal magnetoresistance in the type-II Dirac semimetal PtSe 2 journal October 2018
Bulk Fermi surface of the Weyl type-II semimetallic candidate NbIrTe 4 journal May 2019
Chaotic transport of electron wave packet in Weyl semimetal slab journal May 2019
Current jetting distorted planar Hall effect in a Weyl semimetal with ultrahigh mobility journal January 2019
Surface superconductivity on Weyl semimetal induced by nonmagnetic and ferromagnetic tips journal December 2019
Optoelectronic response of the type-I Weyl semimetals TaAs and NbAs from first principles journal January 2020
Butterfly magnetoresistance, quasi-2D Dirac Fermi surface and topological phase transition in ZrSiS journal December 2016
Topological quantum properties of chiral crystals text January 2018
Anomalous electronic structure and magnetoresistance in TaAs$_2$ text January 2016
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Anomalous Phase Shift of Quantum Oscillations in 3D Topological Semimetals text January 2016
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Emergence of intrinsic superconductivity below 1.178 K in the topologically non-trivial semimetal state of CaSn3 text January 2018
Magnetic susceptibility of topological semimetals text January 2019
Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2 journal September 2017
Electron tunneling through double magnetic barriers in Weyl semimetals journal October 2017
Klein tunneling in Weyl semimetals under the influence of magnetic field text January 2016
Quantum oscillation evidence of topological semimetal phase in ZrSnTe text January 2017

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