Type-I superconductivity in PdTe${}_2$ probed by $\mu$SR

Abstract

The Dirac semimetal PdTe${}_2$ was recently reported to be a type-I superconductor with $T_c=1.64$ K and a critical field ${\mu }_0{H}_c=13.6$ mT. Since type-I superconductivity is unexpected for binary compounds, we have conducted muon spin rotation experiments to probe the superconducting phase on the microscopic scale via its intermediate state. For crystals with a finite demagnetization factor, $N$, the intermediate state forms in applied fields $(1-N)H_c<H_a<H_c$. We have carried out transverse field muon spin rotation measurements on a thin disk-like crystal with the field perpendicular to ($N_{\perp }=0.86$) and in the plane ($N_{\parallel }=0.08$) of the disk. By analysing the $\mu$SR signal we find that the volume fraction of the normal domains grows quasi-linearly with applied field at the expense of the Meissner domain fraction. This then provides solid evidence for the intermediate state and type-I superconductivity in the bulk of PdTe${}_2$.

References in corpus (24)

• Type-II Weyl Semimetals
• musrfit: A free platform-independent framework for muSR data analysis
• Lorentz-violating type-II Dirac fermions in transition metal dichalcogenide PtTe${}_2$
• Spin-polarized muons in condensed matter physics
• Experimental Realization of Type-II Dirac Fermions in PdTe${}_2$ Superconductor
• Type-II Dirac fermions in the PtSe${}_2$ class of transition metal dichalcogenides
• Nontrivial Berry phase and type II Dirac transport in layered material PdTe2
• Ubiquitous formation of bulk Dirac cones and topological surface states from a single orbital manifold in transition-metal dichalcogenides
• Fermiology and Superconductivity of Topological Surface States in PdTe${}_2$
• Specific heat and $\mu$SR study on the noncentrosymmetric superconductor LaRhSi3
• Type I superconductivity in the Dirac semimetal PdTe2
• Conventional Superconductivity in Type II Dirac Semimetal PdTe${}_2$
• Investigations of the superconducting states of noncentrosymmetric LaPdSi3 and LaPtSi3
• Specific heat and magnetization of a ZrB12 single crystal: characterization of a type II/1 superconductor
• Physical properties of noncentrosymmetric superconductor LaIrSi3: A μSR study
• Nodeless superconductivity in type-II Dirac semimetal PdTe2: low-temperature London penetration depth and symmetry analysis
• Type-I superconductivity in noncentrosymmetric superconductor AuBe
• muSR and Magnetometry Study of the Type-I Superconductor BeAu
• Type-I superconductivity in Al${}_6$Re
• Single full gap with mixed type-I and type-II superconductivity on surface of the type-II Dirac semimetal PdTe2 by point-contact spectroscopy
• Mixed type I and type II superconductivity due to intrinsic electronic inhomogeneities in the type II Dirac semimetal PdTe2
• Muon spin rotation study of type-I superconductivity: elemental $\beta -$Sn
• Penetration depth study of the type-I superconductor PdTe2
• On the superconducting nature of the Bi-II phase of elemental Bismuth

Cited by in corpus (22)

• A comprehensive review on topological superconducting materials and interfaces
• Electron irradiation effects on superconductivity in PdTe${}_2$: an application of a generalized Anderson theorem
• Dirac semimetal PdTe2 temperature-dependent quasiparticle dynamics and electron-phonon coupling
• Probing the topological surface states in superconducting Sn4Au single crystal: A magneto transport study
• Defect engineering in two-dimensional pentagonal PdTe${}_2$: Tuning electronic, optical, and magnetic properties
• Observation of Gapped Topological Surface States and Isolated Surface Resonances in PdTe${}_2$ Ultrathin Films
• An investigation of type-I superconductivity in single crystal of Pb2Pd
• Electronic structure and superconductivity of the non-centrosymmetric Sn${}_4$As${}_3$
• Atomic diffusion-induced polarization and superconductivity in topological insulator-based heterostructures
• Bulk superconductivity and non-trivial band topology analysis of Pb2Pd
• Anomalous gap ratio in anisotropic superconductors: aluminum under pressure
• Isotropic single gap superconductivity of elemental Pb: the `smiling' approach
• Visualization by scanning SQUID microscopy of the intermediate state in the superconducting Dirac semimetal PdTe${}_2$
• Pressure weakens coupling strength in In and Sn elemental superconductors
• Heat capacity of type I superconductivity in the Dirac semimetal PdTe${}_2$
• Superconducting and structural properties of the type-I superconductor PdTe2 under high pressure
• Disorder induced transition from type-I to type-II superconductivity in the Dirac semimetal PdTe${}_2$
• Influence of pressure on properties of multi-gap type-I superconductor BeAu
• Type-II superconductivity in the Dirac semimetal PdTe2
• Fragile superconductivity in a Dirac metal
• Termination dependence of the surface states in Pb${}_2$Pd
• Thermodynamic evidence for a pressure-driven crossover from strong- to weak-coupling superconductivity in Pb