Robust magnetoresistance in TaAs2 under pressure up to about 37 GPa
arXiv:1906.06012 · doi:10.1063/1.5115008
Abstract
The extremely large magnetoresistance (XMR) in nonmagnetic semimetals has inspired growing interest owing to both intriguing physics and potential applications. We report results of synchrotron X-ray diffraction (SXRD) and electrical transport measurements on TaAs2 under pressure up to ~ 37 GPa, which revealed an anisotropic compression of the unit cell, formation of unusual As-As bonds above 9.5 GPa, and enhancement of metallicity. Interestingly, the MR of TaAs2 under pressure changed gently, which at 1.7 GPa is 96.6% and at 36.6 GPa is still 36.7%. The almost robust MR under pressure could be related to the nearly stable electronic structure unveiled by the ab initio calculations. The discovery would expand the potential use of XMR even under high pressure.
arXiv comment15 pages, 7 figures including those in supporting information
References in corpus (17)
- Titanic Magnetoresistance in WTe2
- Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal CdAs
- Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal NbP
- Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal
- Consequences of breaking time reversal symmetry in LaSb: a resistivity plateau and extreme magnetoresistance
- Anisotropic giant magnetoresistance in NbSb2
- Magnetic Field Effects on Transport Properties of PtSn4
- Compensated semimetal LaSb with unsaturated magnetoresistance
- Tantalum Monoarsenide: an Exotic Compensated Semimetal
- Electron scattering in tantalum monoarsenide
- Large Magnetoresistance in Compensated Semimetals TaAs and NbAs
- Distinct Electronic Structure for the Extreme Magnetoresistance in YSb
- Electron-hole compensation effect between topologically trivial electrons and nontrivial holes in NbAs
- Anomalous electronic structure and magnetoresistance in TaAs
- Magneto-transport properties of the "hydrogen atom" nodal-line semimetal candidates CaTX (T=Ag, Cd, X=As, Ge)
- Giant semiclassical magnetoresistance in high mobility TaAs2 semimetal
- Pressure-induced superconductivity in topological semimetal NbAs2