Practical Superconducting Materials

Dew‐Hughes, D.

doi:10.1007/978-1-4684-2784-4_2

Cited by 5 publications

(2 citation statements)

References 85 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Obviously, the magnitude of F max p was enhanced, and the scaling parameter α of F max p ∝ H α is around 1.9 for the irradiated crystal, which is close to the theoretical value of 2 for the core normal point-like pinning. 24 Thus, the peak position change in f indicates that the H + irradiation successfully introduce point pinning centers into FeSe single crystal, which enhances the pinning force and critical current density.…”

mentioning

confidence: 95%

See 1 more Smart Citation

Enhancement of critical current density and mechanism of vortex pinning in H⁺-irradiated FeSe single crystal

Sun

Pyon

Tamegai

et al. 2015

Appl. Phys. Express

View full text Add to dashboard Cite

In this report, we comprehensively study the effect of H + irradiation on the critical current density, J c , and vortex pinning in FeSe single crystal. It is found that the value of J c for FeSe is enhanced more than twice after 3-MeV H + irradiation. The scaling analyses of the vortex pinning force based on the Dew-Hughes model reveal that the H + irradiation successfully introduce point pinning centers into the crystal. We also find that the vortex creep rates are strongly suppressed after irradiation. Detailed analyses of the critical current dependent pinning energy based on the collective creep theory and extend Maley's method show that the H + irradiation enhances the value of J c before the flux creep, and also reduces the size of flux bundle, which will further reduce the field dependence of J c due to vortex motion.

show abstract

mentioning

confidence: 95%

“…After H + irradiation, the peak position of f was changed to h = 0.28, which is close to the values of 0.33 for the core normal point pinning according to the Dew-Huges model. 24 Moreover, insets of Fig. 2(a) and (b) show the curves of F max p vs H irr for the pristine and H + -irradiated FeSe.…”

mentioning

confidence: 99%