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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
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 Kdoi
10.1038/srep43394subject
Has Abstractpub_date
2017-03-06 00:00:00pages
43394issn
2045-2322pii
srep43394journal_volume
7pub_type
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