1T`-MoTe2 single crystal: a possible topological superconductor

Abstract

We measured the magnetoresistvity (MR) properties of the 1T`-MoTe2 single crystal under the magnetic field up to 33 T.By analyzing the Shubnikov de Haas oscillations of MR at the low temperature, single Fermi surface is revealed.From the strong oscillatory component of the longitudinal resistance ΔRxx,a linear dependence of the Landau index n on 1/B is obtained.The intercept of the Landau index plot is between 3/8 and 1/2.This clearly reveals a nontrivial π Berry`s phase, which is a distinguished feature of Dirac fermions. Accompanied by the superconductivity observed at TC=0.1 K, 1T`-MoTe2 may be a promising candidate of the topological superconductor.

References in corpus (23)

• Topological Insulators
• Topological insulators and superconductors
• Berry Phase Effects on Electronic Properties
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• Topological Field Theory of Time-Reversal Invariant Insulators
• Titanic Magnetoresistance in WTe2
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal Cd${}_3$As${}_2$
• Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal NbP
• Odd-Parity Topological Superconductors: Theory and Application to Cu${}_x$Bi${}_2$Se${}_3$
• Superconductivity in Weyl Semimetal Candidate MoTe2
• Prediction of the Weyl semimetal in the orthorhombic MoTe2
• The Coexistence of Superconductivity and Topological Order in the Bi2Se3 Thin Films
• Quantum transport evidence for a three-dimensional Dirac semimetal phase in Cd3As2
• Observation of topological order in a Superconducting doped topological insulator (based on the Bi2Se3 class)
• MoTe2: A Type-II Weyl Topological Metal
• Consequences of breaking time reversal symmetry in LaSb: a resistivity plateau and extreme magnetoresistance
• Topological Superconductor Bi2Te3/NbSe2 heterostructures
• Anisotropic Dirac fermions in a Bi square net of SrMnBi2
• Superconductivity with topological surface state in SrxBi2Se3
• Quantum oscillations, thermoelectric coefficients and the Fermi surface of semi-metallic WTe2
• Superconductivity enhancement in the S-doped Weyl semimetal candidate MoTe2
• Quantum oscillations in topological superconductor candidate Cu${}_{0.25}$Bi${}_2$Se${}_3$

Cited by in corpus (20)

• The extremely large magnetoresistance in the Candidate Type-II Weyl semimetal MoTe2
• Possible topologically non-trivial superconducting order parameter in type-II Weyl semimetal T_d-MoTe_2
• Dimensionality-driven orthorhombic MoTe2 at room temperature
• Mechanical control of crystal symmetry and superconductivity in Weyl semimetal MoTe${}_2$
• Optical evidence of type-II Weyl semimetals MoTe${}_2$ and WTe${}_2$
• The origin of the turn-on phenomenon in Td-MoTe2
• Self-biased current, magnetic interference response, and superconducting vortices in tilted Weyl semimetals with disorder
• Enhancement of the superconducting transition temperature by Re doping in Weyl semimetal MoTe${}_2$
• Edelstein effect induced superconducting diode effect in inversion symmetry breaking MoTe${}_2$ Josephson junctions
• Spin-resolved electronic response to the phase transition in MoTe${}_2$
• Detection of hole pockets in the candidate type-II Weyl semimetal MoTe${}_2$ from Shubnikov-de Haas quantum oscillations
• Origin of magnetoresistance suppression in thin $\gamma$-MoTe${}_2$
• Superconducting properties of MoTe${}_2$ from the $abinitio$ anisotropic Migdal-Eliashberg theory
• Simple mechanisms that impede the Berry phase identification from magneto-oscillations
• Superconductivity in doped Weyl semimetal Mo${}_{0.9}$Ir${}_{0.1}$Te${}_2$ with broken inversion symmetry
• Transport characteristics of type II Weyl semimetal MoTe2 thin films grown by chemical vapor deposition
• Superconducting pairing symmetry in MoTe${}_2$
• Pressure induced topological quantum phase transition in Weyl semimetal T_d-MoTe_2
• Nonlinear magnetotransport in MoTe${}_2$
• Systematic study of superconductivity in few-layer $T_d$-MoTe${}_2$