Evolution of the Local Superconducting Density of States in ErRh4B4 Close to the Ferromagnetic Transition

V. Crespo; J. G. Rodrigo; H. Suderow; S. Vieira; D. G. Hinks; I. K. Schuller

doi:10.1103/PhysRevLett.102.237002

← Back to search

Evolution of the Local Superconducting Density of States in ErRh4B4 Close to the Ferromagnetic Transition

V. Crespo, J. G. Rodrigo, H. Suderow, S. Vieira, D. G. Hinks, I. K. Schuller

DOI 10.1103/PhysRevLett.102.237002 · Physical Review Letters

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

We present local tunneling spectroscopy experiments in the superconducting and ferromagnetic phases of the reentrant superconductor ErRh4B4. The tunneling conductance curves jump from showing normal to superconducting features within a few mK close to the ferromagnetic transition temperature, with a clear hysteretic behavior. Within the ferromagnetic phase, we do not detect any superconducting correlations. Within the superconducting phase we find a peculiar V-shaped density of states at low energies, which is produced by the magnetically modulated phase that coexists with superconductivity just before ferromagnetism sets in.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
ErRh4B4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	8	Pressure not reported	onset
ErRh4B4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	8	Pressure not reported	onset