Evolution of the local superconducting density of states in ErRh{sub 4}B{sub 4} close to the ferromagnetic transition.
Journal Article
·
· Phys. Rev. Lett.
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.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; Spanish MICINN; ESF
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 958544
- Report Number(s):
- ANL/MSD/JA-63927
- Journal Information:
- Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 2009 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- ENGLISH
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