Pinning Centers and Thermally Activated Flux Flow in GdBa2Cu3O7–δ Superconducting Film

Keshvani, M. J.; Ravalia, Ashish; Venkateshwarlu, D.; Ganesan, V.; Kuberkar, D. G.

doi:10.1007/s10948-023-06527-2

Cited by 4 publications

(1 citation statement)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, and it elucidates the underlying mechanisms governing vortex motion. Keshvani et al have postulated that the constancy of T c onset with magnetic field and ΔT 2 ∼ (H) 0.67 are the critical conditions for thermally activated vortex movement [42]. In our GdBCO superconductor, we have observed a magnetic field dependence of both broadenings (ΔT 1 and ΔT 2 ) approximating (H) 0.34 and (H) 0.51 , respectively, as shown in figure 6(a).…”

Section: Electrical Transport Propertiessupporting

confidence: 60%

Revelations of vortex phases and pinning mechanism in GdBa₂Cu₃O_7-δ superconductors: a magneto-electric and magnetization study

Shit,

Namburi,

Das

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

Rare earth (RE) and barium (Ba) based cuprate superconductors have garnered considerable attention in both fundamental research and a wide array of engineering and technological applications. Examining the impact of magnetic Gd3+ ions on the GdBa2Cu3O7-δ (GdBCO) system, this study reveals that the presence of Gd3+ ion has tilted the magnetic hysteresis loop, thereby affecting the critical current density (Jc) at low temperatures. Through comprehensive magnetic and magnetotransport data analyses of the GdBCO sample, we have thoroughly explored the intricate behavior of vortices in response to magnetic fields and temperature variations, providing insight into the governing mechanism of vortex pinning. Remarkably, the absolute zero temperature pinning potential (U0) experiences a significant reduction from a very high value of 3.18 eV to 0.45 eV with a magnetic field increase to 40 KOe, following a H^-0:53 law, indicating 3D plastically crippled vortices in weak pinning sites due to point defects. In various technological domains, particularly those involving high temperatures and strong magnetic fields, understanding and optimizing the pinning force (Fp) and the pinning potential (U) of the vortices are pivotal for enhancing performance and efficiency. Consequently, we have meticulously analyzed the nature of Fp and U with the aid of the thermally activated flux flow (TAFF) model. Ultimately, we compiled a comprehensive phase diagram delineating the evolution of various vortex phases.

show abstract

Section: Electrical Transport Propertiessupporting

confidence: 60%

Revelations of vortex phases and pinning mechanism in GdBa₂Cu₃O_7-δ superconductors: a magneto-electric and magnetization study

Shit,

Namburi,

Das

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

Effects of inter-granular Sn on transport and magnetic properties of polycrystalline GdBCO superconductors

Sk,

Mandal,

Rakshit

et al. 2024

Appl. Phys. A

View full text Add to dashboard Cite

Description of Resistive Transition for Type-II Superconductors

Gokhfeld

2024

J Supercond Nov Magn

View full text Add to dashboard Cite

Pinning Centers and Thermally Activated Flux Flow in GdBa2Cu3O7–δ Superconducting Film

Cited by 4 publications

References 26 publications

Revelations of vortex phases and pinning mechanism in GdBa₂Cu₃O_7-δ superconductors: a magneto-electric and magnetization study

Revelations of vortex phases and pinning mechanism in GdBa₂Cu₃O_7-δ superconductors: a magneto-electric and magnetization study

Effects of inter-granular Sn on transport and magnetic properties of polycrystalline GdBCO superconductors

Description of Resistive Transition for Type-II Superconductors

Contact Info

Product

Resources

About

Pinning Centers and Thermally Activated Flux Flow in GdBa2Cu3O7–δ Superconducting Film

Cited by 4 publications

References 26 publications

Revelations of vortex phases and pinning mechanism in GdBa2Cu3O7-δ superconductors: a magneto-electric and magnetization study

Revelations of vortex phases and pinning mechanism in GdBa2Cu3O7-δ superconductors: a magneto-electric and magnetization study

Effects of inter-granular Sn on transport and magnetic properties of polycrystalline GdBCO superconductors

Description of Resistive Transition for Type-II Superconductors

Contact Info

Product

Resources

About

Revelations of vortex phases and pinning mechanism in GdBa₂Cu₃O_7-δ superconductors: a magneto-electric and magnetization study

Revelations of vortex phases and pinning mechanism in GdBa₂Cu₃O_7-δ superconductors: a magneto-electric and magnetization study