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19 April 2024 |
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Article overview
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Evidence for trivial Berry phase and absence of chiral anomaly in semimetal NbP | | Sudesh
; P. Kumar
; P. Neha
; T. Das
; A. K. Rastogi
; S. Patnaik
; | | Date: |
23 Aug 2016 | | Abstract: | We report a detailed magneto-transport study in single crystals of NbP. High
quality crystals were grown by vapour transport method. An exceptionally large
magnetoresistance is confirmed at low temperature which is non-saturating and
is linear at high fields. Models explaining the linear magnetoresistance are
discussed and it is argued that in NbP this is linked to charge carrier
mobility fluctuations. Negative longitudinal magnetoresistance is not seen,
unlike several other Weyl monopnictides, suggesting lack of well defined chiral
anomaly in NbP. Unambiguous Shubnikov-de-Haas oscillations are observed at low
temperatures that are correlated to Berry phases. The Landau fan diagram
indicates trivial Berry phase in NbP crystals corresponding to Fermi surface
extrema at 30.5 Tesla. | | Source: | arXiv, 1608.6587 | | Services: | Forum | Review | PDF | Favorites | |
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