Pith. sign in

REVIEW

Evidence for dominant Pauli paramagnetic effect in the upper critical fields of a FeTe0.6Se0.4 superconductor

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1001.4017 v2 pith:5VCYFF25 submitted 2010-01-22 cond-mat.supr-con

Evidence for dominant Pauli paramagnetic effect in the upper critical fields of a FeTe0.6Se0.4 superconductor

Seunghyun Khim , Jae Wook Kim , Eun Sang Choi , Yunkyu Bang , Minoru Nohara , Hidenori Takagi , Kee Hoon Kim This is my paper
classification cond-mat.supr-con
keywords paulieffectfieldshc2abparamagneticcriticalcurvesfete0
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

We investigate temperature-dependence of the upper critical fields Hc2(T) of a superconducting FeTe0.6Se0.4 single crystal by measuring resistivity in static magnetic fields up to 45 T. The observations of strong bending in the Hc2ab(T) curves and nearly isotropic Hc2ab(0) ~ Hc2c(0) ~ 48 T support the presence of strong Pauli paramagnetic effect. We show that the Werthamer-Helfand-Hohenberg formula considering the Pauli limiting and the spin-orbit scattering together can effectively describe both Hc2ab(T) and Hc2c(T) curves. The enhancement in quasi-particle density of states or increased scattering resulting from Te(Se) vacancy or excess Fe is discussed as a possible origin for the manifesting Pauli paramagnetic effect.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.