Local superconducting density of states of ErNi2B2C

Abstract

We present local tunnelling microscopy and spectroscopy measurements at low temperatures in single crystalline samples of the magnetic superconductor ErNi2B2C. The electronic local density of states shows a striking departure from s-wave BCS theory with a finite value at the Fermi level, which amounts to half of the normal phase density of states.

9 pages, 3 figures

References in corpus (14)

• Imaging the Effects of Individual Zinc Impurity Atoms on Superconductivity in Bi2Sr2CaCu2O8+delta
• Upper critical field pecularities of superconducting YNi2B2C and LuNi2B2C
• Tunneling spectroscopy in small grains of superconducting MgB2
• Nesting properties and anisotropy of the Fermi surface of LuNi${}_2$B${}_2$C
• On the use of STM superconducting tips at very low temperatures
• Spontaneous vortex phase discovered?
• Very Low Temperature Tunnelling Spectroscopy in the heavy fermion superconductor PrOs${}_4$Sb${}_{12}$
• Phonon-mediated anisotropic superconductivity in the Y and Lu nickel borocarbides
• On the theory of superconductivity in ferromagnetic superconductors with triplet pairing
• Scanning Tunneling Spectroscopy of the superconducting proximity effect in a diluted ferromagnetic alloy
• Proximity effect and strong coupling superconductivity in nanostructures built with an STM
• Tunneling spectroscopy in the magnetic superconductor TmNi2B2C
• Mean-field model of the ferromagnetic ordering in the superconducting phase of ErNi_2B_2C
• Lockin to Weak Ferromagnetism in TbNi2B2C and ErNi2B2C

Cited by in corpus (25)

• Superconducting density of states and vortex cores of 2H-NbS2
• Imaging superconducting vortex core and lattice with the scanning tunneling microscope
• Intrinsic atomic scale modulations of the superconducting gap of 2H-NbSe2
• Nanoscale superconducting properties of amorphous W-based deposits grown with focused-ion-beam
• Nodeless spin triplet superconducting gap in Sr2RuO4
• Superconductivity and magnetism on flux grown single crystals of NiBi3
• Scanning Tunneling Microscopy in the superconductor LaSb2
• Bulk electronic structure of the antiferromagnetic superconducting phase in ErNi2B2C
• Band structure, superconductivity and polytypism in AuSn${}_4$
• Singlet superconductivity in single-crystal NiBi3 superconductor
• Room-temperature tunnel current amplifier and experimental setup for high resolution electronic spectroscopy in millikelvin STM experiments
• Superconducting density of states and bandstructure at the surface of the candidate topological superconductor Au2Pb
• Competition of multiband superconducting and magnetic order in ErNi2B2C observed by Andreev reflection
• Magnetic field-induced gapless state in multiband superconductors
• Evolution of the local superconducting density of states in ErRh${}_4$B${}_4$ close to the ferromagnetic transition
• Vortex creep at very low temperatures in single crystals of the extreme type-II superconductor Rh${}_9$In${}_4$S${}_4$
• Superconducting density of states at the border of an amorphous thin film grown by focused-ion-beam
• Scanning microscopies of superconductors at very low temperatures
• Magnetic and superconducting phase diagrams in ErNi2B2C
• Tunneling spectroscopy of the superconducting state of URu2Si2
• Observation of anisotropic effect of antiferromagnetic ordering on the superconducting gap in ErNi2B2C
• Superconducting density of states of PtPb4
• Anisotropic superconductivity and Fermi surface reconstruction in the spin-vortex antiferromagnetic superconductor CaK(Fe${}_{0.95}$Ni${}_{0.05}$)${}_4$As${}_4$
• Boron isotope effect in single crystals of ErNi${}_2$B${}_2$C superconductor
• Advanced approach of superconducting gap function extraction from tunneling experiments