Comment on "Precision global measurements of London penetration depth in FeTe0.58Se0.42" - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2012

Comment on "Precision global measurements of London penetration depth in FeTe0.58Se0.42"

Thierry Klein
  • Fonction : Auteur
  • PersonId : 953755
Pierre Rodière

Résumé

Cho et al. [Phys. Rev. B 84, 174502 (2011)] have reported on the temperature dependence of the London penetration depth deduced from tunnel diode oscillator (TDO) measurements in optimally doped Fe(Se,Te) single crystals. According to their analysis, these measurements could suggest a nodeless two-gap pairing symmetry with strong pair-breaking effects. However, to reach this conclusion, the authors fit the temperature dependence of the superfluid density with a two band clean limit model, which is incompatible with the presence of strong pair-breaking effects, deduced from the T n temperature dependence of the London penetration depth below Tc/3. Moreover, they claim that their results are also ruling out the suggestion that surface conditions can significantly affect the TDO data, but this conclusion is based on one very specific damaging process and completely ignores the large dispersion in the previously published TDO data.

Mots clés

Fichier principal
Vignette du fichier
PhysRevB.86.pdf (113.37 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00957156 , version 1 (09-03-2014)

Identifiants

Citer

Thierry Klein, Pierre Rodière, C. Marcenat. Comment on "Precision global measurements of London penetration depth in FeTe0.58Se0.42". Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2012, 88, pp.066501. ⟨10.1103/PhysRevB.86.066501⟩. ⟨hal-00957156⟩
291 Consultations
161 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More