Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal candidate NbP
Shekhar C, Nayak AK, Sun Y, Schmidt M, Nicklas M, Leermakers I, Zeitler U, Skourski Y, Wosnitza J, Liu Z, Chen Y, Schnelle W, Borrmann H, Grin Y, Felser C, Yan B (2015)
Publication Type: Journal article
Publication year: 2015
Journal
Book Volume: 11
Pages Range: 645-649
Journal Issue: 8
DOI: 10.1038/nphys3372
Abstract
Recent experiments have revealed spectacular transport properties in semimetals, such as the large, non-saturating magnetoresistance exhibited by WTe 2 (ref.). Topological semimetals with massless relativistic electrons have also been predicted as three-dimensional analogues of graphene. These systems are known as Weyl semimetals, and are predicted to have a range of exotic transport properties and surface states, distinct from those of topological insulators. Here we examine the magneto-transport properties of NbP, a material the band structure of which has been predicted to combine the hallmarks of a Weyl semimetal with those of a normal semimetal. We observe an extremely large magnetoresistance of 850,000% at 1.85 K (250% at room temperature) in a magnetic field of up to 9 T, without any signs of saturation, and an ultrahigh carrier mobility of 5 × 10 6 cm 2 V â '1 s â '1 that accompanied by strong Shubnikov-de Haas (SdH) oscillations. NbP therefore presents a unique example of a material combining topological and conventional electronic phases, with intriguing physical properties resulting from their interplay.
Involved external institutions
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Radboud University Nijmegen
Netherlands (NL)
Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
Germany (DE)
Diamond Light Source
United Kingdom (GB)
University of Oxford
United Kingdom (GB)
Germany (DE)
Radboud University Nijmegen
Netherlands (NL)
Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
Germany (DE)
Diamond Light Source
United Kingdom (GB)
University of Oxford
United Kingdom (GB)
How to cite
APA:
Shekhar, C., Nayak, A.K., Sun, Y., Schmidt, M., Nicklas, M., Leermakers, I.,... Yan, B. (2015). Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal candidate NbP. Nature Physics, 11(8), 645-649. https://doi.org/10.1038/nphys3372
MLA:
Shekhar, Chandra, et al. "Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal candidate NbP." Nature Physics 11.8 (2015): 645-649.
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