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  Extremely large magnetoresistance from electron-hole compensation in the nodal-loop semimetal ZrP2

Bannies, J., Razzoli, E., Michiardi, M., Kung, H.-H., Elfimov, I. S., Yao, M., et al. (2021). Extremely large magnetoresistance from electron-hole compensation in the nodal-loop semimetal ZrP2. Physical Review B, 103(15): 155144, pp. 1-8. doi:10.1103/PhysRevB.103.155144.

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 Creators:
Bannies, J.1, Author              
Razzoli, E.2, Author
Michiardi, M.1, Author              
Kung, H.-H.2, Author
Elfimov, I. S.2, Author
Yao, M.1, Author              
Fedorov, A.2, Author
Fink, J.1, Author              
Jozwiak, C.2, Author
Bostwick, A.2, Author
Rotenberg, E.2, Author
Damascelli, A.2, Author
Felser, C.3, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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Free keywords: Band structure, Electronic properties, Magnetoresistance, Photoelectron spectroscopy, Topology, Transition metals, Angle resolved photoemission spectroscopy, Band structure calculation, Early transition metals, Electron hole, Surface band structures, Topological bands, Zirconium compounds
 Abstract: Several early transition metal dipnictides (TMDPs) have been found to host topological semimetal states and exhibit large magnetoresistance (MR). In this paper, we use angle-resolved photoemission spectroscopy (ARPES) and magnetotransport to study the electronic properties of a TMDP ZrP2. We find that ZrP2 exhibits an extremely large and unsaturated MR of up to 40 000% at 2 K, which originates from an almost perfect electron-hole (e-h) compensation. Our band structure calculations further show that ZrP2 hosts a topological nodal loop in proximity to the Fermi level. Based on the ARPES measurements, we confirm the results of our calculations and determine the surface band structure. This paper establishes ZrP2 as a platform to investigate near-perfect e-h compensation and its interplay with topological band structures. © 2021 authors. Published by the American Physical Society.

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Language(s): eng - English
 Dates: 2021-04-222021-04-22
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevB.103.155144
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 103 (15) Sequence Number: 155144 Start / End Page: 1 - 8 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008