200 MeV Ag+15 ion irradiation created columnar defects and enhanced critical current density of La-2125 type superconducting thin films

Abstract

We have deposited c-axis oriented thin films of La 1.5 Dy 0.5 CaBa 2 Cu 5 O z (La-2125) tetragonal superconductor on LaAlO

Damages induced by heavy ions in titanium silicon carbide: Effects of nuclear and electronic interactions at room temperature

“…Indeed, numerous authors remarked bumps during irradiations with similar energies, but generally fluences do not exceed some 10 12 cm À2 [30][31][32][33][34][35][36]; thus they noted the same number of hills as of incident ions. In this case, authors usually attribute their appearance to the thermal spike model.…”

Critical Current Density Enhancement in High Temperature Superconductors by Flux Pinning

“…NdBa2Cu3O7−δ (NBCO) thin films (2000 Å) grown by excimer KrF laser, irradiated with Au+13 (200 MeV) ions, show an almost four-fold increase in J C at the optimum ion dose, indicating a robust pinning of vortices [3]. An enhancement of J C (H) in La-2125 thin films has been reported [4] with increasing Ag+15 ion irradiation upto an ion fluence of 1 × 10 11 ions per cm 2 . Interestingly, the maximum enhancement in J C is observed to be five-fold higher (1.6 × 10 7 A.cm-2) compared to J C of pristine thin films.…”

Влияние Радиационных Дефектов Различного Типа На Критический Ток Слоистого Анизотропного Сверхпроводника

“…В [18] исследовалось влияние облучения на скорость релаксации в сверхпроводнике CaFe 2 As 2 . Влияние облучения на величину критического тока исследовалось с начала 1990-х [19][20][21], но продолжает быть актуальным и в настоящее время [22][23][24]. В [19]…”