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Interplay between disorder and inversion symmetry: Extreme enhancement of the mobility near the Weyl point in BiTel.
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Nov2015, Vol. 92 Issue 20, p205121-1-205121-13. 13p. - Publication Year :
- 2015
-
Abstract
- We show experimental and theoretical evidence that BiTel hosts a disordered metallic state named diffusive helical Fermi liquid, characterized by a pair of concentric spin-chiral Fermi surfaces with negligible intervalley scattering. Key experimental observations are extreme disparity of the mobility between inner and outer helical Fermi surfaces near the Weyl point and existence of the so-called universal scaling behavior for the Hall resistivity. Although the extreme enhancement of the inner-Fermi-surface mobility near the Weyl point is quantitatively explained within the self-consistent Born approximation, the existence of universal scaling in the Hall resistivity shows its breakdown, implying necessity of mass renormalization in the inner Fermi-surface beyond the independent electron picture. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FERMI liquids
*BISMUTH compounds
*QUANTUM liquids
*METAL compounds
*HALL effect
Subjects
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 92
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 112371141
- Full Text :
- https://doi.org/10.1103/PhysRevB.92.205121