Conveners
M3Or4O: Latest Development in Flux Pinning & Critical Current - REBCO II
- Judy Wu (University of Kansas)
- Eric Hellstrom (ASC / Florida State University)
-
Venkat Selvamanickam (University of Houston)12/07/2023, 16:15Invited Oral
Using 4-µm-thick REBCO film and optimal film composition, we had demonstrated critical currents as high as 1,836 A/4mm at 4.2 K, 20 T (Jc = 11.5 MA/cm2). Recently, we scaled up this process to 50-m-lengths to achieve 1,274 A/4 mm at 4.2 K, 20 T (Jc = 8 MA/cm2) which about 70% of the short-sample champion value. Achieving uniform, repeatable and high in-field critical current over long tape...
Go to contribution page -
Dr Tatsunori Okada (Tohoku University)12/07/2023, 16:45Invited Oral
In addition to naturally induced pinning centers in $RE$Ba$_{2}$Cu$_{3}$O$_{7−\delta}$ coated conductors ($RE$BCO-CCs), such as blocking layers and stacking faults act as planer pins, minor-phase precipitates and oxygen defects act as coarse and fine spherical pins, an introduction of fine pinning centers plays a crucial role for improving the critical current density Jc characteristics of...
Go to contribution page -
Christopher Mizzi (Los Alamos National Laboratory)12/07/2023, 17:05Invited Oral
Nonlinear electrical transport is an indispensable tool to study disorder, dimensionality, criticality, and vortex physics for fundamental research on new types of superconductors and technological applications. Because a significant portion of many superconducting phase diagrams occurs at very high magnetic fields ($\it{H}$) only accessible by pulsed field magnets, there is a need to develop...
Go to contribution page -
Dr Timothy Haugan (U.S. Air Force Research Laboratory)12/07/2023, 17:25Invited Oral
Artificial pinning centers (APCs) of varying types and nano-scale size have been successfully introduced into (Y,RE)Ba2Cu3O7-x (Y,RE-BCO, (Y,RE)BaCuO, YBaCuO or YBCO) thin film superconductors by different processing methods in order to strongly and collectively pin quantized vortices. A number of high quality reviews of this large field have been published that describe progress in the...
Go to contribution page