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  Planar Hall effect in the Weyl semimetal GdPtBi

Kumar, N., Guin, S. N., Felser, C., & Shekhar, C. (2018). Planar Hall effect in the Weyl semimetal GdPtBi. Physical Review B, 98(4): 041103, pp. 1-4. doi:10.1103/PhysRevB.98.041103.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-E2C8-E Version Permalink: http://hdl.handle.net/21.11116/0000-0001-E2CF-7
Genre: Journal Article

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 Creators:
Kumar, Nitesh1, Author              
Guin, Satya N.1, Author              
Felser, Claudia2, Author              
Shekhar, Chandra3, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
3Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              

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 Abstract: The recent discovery of Weyl and Dirac semimetals is one of the most important progresses in condensed matter physics. Among the very few available tools to characterize Weyl semimetals through electrical transport, negative magnetoresistance is most commonly used. Considering the shortcomings of this method, new tools to characterize the chiral anomaly in Weyl semimetals are desirable. We employ the planar Hall effect (PHE) as an effective technique in the half Heusler Weyl semimetal GdPtBi to study the chiral anomaly. This compound exhibits a large value of 1.5 m Omega cm planar Hall resistivity at 2 K and in 9 T. Our analysis reveals that the observed amplitude is dominated by Berry curvature and chiral anomaly contributions. Through angle-dependent transport studies we establish that GdPtBi with relatively small orbital magnetoresistance is an ideal candidate to observe the large PHE.

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Language(s): eng - English
 Dates: 2018-07-112018-07-11
 Publication Status: Published in print
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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: 98 (4) Sequence Number: 041103 Start / End Page: 1 - 4 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008