Enhanced flux pinning in neutron irradiated MgB2
I. Pallecchi, C. Tarantini, H. U. Aebersold, V. Braccini, C. Fanciulli, C. Ferdeghini, F. Gatti, E. Lehmann, P. Manfrinetti, D. Marre', A. Palenzona, A. S. Siri, M. Vignolo, M. Putti
Abstract
We study the effect of neutron irradiation on the critical current density Jc of isotopically pure polycrystalline Mg11B2 samples. For fluences in the range 1017-1018 cm-2, Jc is enhanced and its dependence on magnetic field is significantly improved: we demonstrate that, in this regime, point-like pinning centers are effectively introduced in the system proportionally to the neutron fluence. Instead, for larger fluences, a strong suppression of the critical temperature accompanied by a decrease of both the upper critical field Bc2 and Jc is found.
Create a lesson
Related papers
Altermagnetic Control of Charge-4e Superconductivity
Yan-Guang Yue, Jie Lou, Yan Chen
Electron- and hole-doped superconductivity in two-dimensional electride ZrX2 (X = Cl, Br, I)
Tian-Xin Liu, Xin-Yang Li, Zuo-Wei Yin et al.
Enhanced Coulomb pseudopotentials in high-pressure hydrides from first principles
Kieran Bozier, Chris J. Pickard
Pressure-induced double-dome superconductivity in doped kagome metal Cs(V0.86Ta0.14)3Sb5 without charge density wave
Haochen Sun, Jing Wang, Deng Hu et al.
Electric and Heat Transport in One-Dimensional SNS Junctions with Energy-Dependent Transmission
Kai Tsutsumi, Shun Uchino
From band reconstruction to Bogoliubov dispersion: How dz2-band enhances iron-based superconductivity
Jingming Yan, Shendong Su, Guihao Jia et al.