High-Mobility Carriers Induced by Chemical Doping in the Candidate Nodal-Line Semimetal CaAgP
arXiv:2008.06188 · doi:10.1103/PhysRevB.102.115101
Abstract
We report the electronic properties of single crystals of candidate nodal-line semimetal CaAgP. The transport properties of CaAgP are understood within the framework of a hole-doped nodal-line semimetal. In contrast, Pd-doped CaAgP shows a drastic increase of magnetoresistance at low magnetic fields and a strong decrease of electrical resistivity at low temperatures probably due to weak antilocalization. Hall conductivity data indicated that the Pd-doped CaAgP has not only hole carriers induced by the Pd doping, but also high-mobility electron carriers in proximity of the Dirac point. Electrical resistivity of Pd-doped CaAgP also showed a superconducting transition with onset temperature of 1.7-1.8 K.
arXiv comment6 pages, 3 figures, accepted for publication in Phys. Rev. B
References in corpus (33)
- Topological nodal semimetals
- Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
- Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal CdAs
- Dirac Cone Protected by Non-Symmorphic Symmetry and 3D Dirac Line Node in ZrSiS
- Topological Node-Line Semimetal in Three Dimensional Graphene Networks
- Observation of Topological Nodal Fermion Semimetal Phase in ZrSiS
- Topological semi-metals with line nodes and drumhead surface states
- Potential ring of Dirac nodes in a new polymorph of CaP
- Drumhead Surface States and Topological Nodal-Line Fermions in TlTaSe2
- Line-Node Dirac Semimetal and Topological Insulating Phase in Noncentrosymmetric Pnictides CaAgX (X = P, As)
- Landau Level Quantization and Almost Flat Modes in Three-dimensional Semi-metals with Nodal Ring Spectra
- Dimensional crossover in topological matter: Evolution of the multiple Dirac point in the layered system to the flat band on the surface
- Tantalum Monoarsenide: an Exotic Compensated Semimetal
- Electron scattering in tantalum monoarsenide
- Anisotropic Fermi Surface and Quantum Limit Transport in High Mobility 3D Dirac Semimetal Cd3As2
- Observation of Dirac-like energy band and ring-torus Fermi surface associated with the nodal line in topological insulator CaAgAs
- Anomalous conductivity tensor in the Dirac semimetal Na_3Bi
- Topological crystalline superconductivity and second-order topological superconductivity in nodal-loop materials
- Band-Contact Lines in Electron Energy Spectrum of Graphite
- Surface and 3D quantum Hall effects from engineering of exceptional points in nodal-line semimetals
- Topological surface electronic states in candidate nodal-line semimetal CaAgAs
- Weak Localization and Antilocalization in Nodal-Line Semimetals: Dimensionality and Topological Effects
- Magneto-transport properties of the "hydrogen atom" nodal-line semimetal candidates CaTX (T=Ag, Cd, X=As, Ge)
- Topological surface superconductivity in doped Weyl loop materials
- Low Carrier Density Metal Realized in Candidate Line-Node Dirac Semimetals CaAgP and CaAgAs
- Weyl and Dirac Loop Superconductors
- Crossing-Line-Node Semimetals: General Theory and Application to Rare-Earth Trihydrides
- Robust weak antilocalization due to spin-orbital entanglement in Dirac material SrSnO
- Trivial topological phase of CaAgP and the topological nodal-line transition in CaAg(P1-xAsx)
- Signature of odd-frequency equal-spin triplet pairing in the Josephson current on the surface of Weyl nodal loop semimetals
- Electronic properties of topological insulator candidate CaAgAs
- Real spin and pseudospin topologies in the noncentrosymmetric topological nodal-line semimetal CaAgAs
- Elastic gauge fields and zero-field 3D quantum Hall effect in hyperhoneycomb lattices