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Title: Chiral magnetoresistance in the Weyl semimetal NbP. Author: Niemann AC, Gooth J, Wu SC, Bäßler S, Sergelius P, Hühne R, Rellinghaus B, Shekhar C, Süß V, Schmidt M, Felser C, Yan B, Nielsch K. Journal: Sci Rep; 2017 Mar 06; 7():43394. PubMed ID: 28262790. Abstract: NbP is a recently realized Weyl semimetal (WSM), hosting Weyl points through which conduction and valence bands cross linearly in the bulk and exotic Fermi arcs appear. The most intriguing transport phenomenon of a WSM is the chiral anomaly-induced negative magnetoresistance (NMR) in parallel electric and magnetic fields. In intrinsic NbP the Weyl points lie far from the Fermi energy, making chiral magneto-transport elusive. Here, we use Ga-doping to relocate the Fermi energy in NbP sufficiently close to the W2 Weyl points, for which the different Fermi surfaces are verified by resultant quantum oscillations. Consequently, we observe a NMR for parallel electric and magnetic fields, which is considered as a signature of the chiral anomaly in condensed-matter physics. The NMR survives up to room temperature, making NbP a versatile material platform for the development of Weyltronic applications.[Abstract] [Full Text] [Related] [New Search]