The natural critical current density limit for Li7La3Zr2O12 garnets

High Critical Current Density Superconductivity

This project was focused on a basic scientific problem, one that is at the heart of application and development of superconductivity for efficient energy usage. This is improvement in high current density which can only be achieved by learning to pin vortices to the physical structure of its underlying superconducting material. Quantized vortices are the tornado of electrical supercurrents, ubi...

High Critical Current Density MgB

Low-temperature densification of Al-doped Li7La3Zr2O12: a reliable and controllable synthesis of fast-ion conducting garnets

The application of Li7La3Zr2O12 as a Li + solid electrolyte is hampered by the lack of a reliable procedure to obtain and densify the fast-ion conducting cubic garnet polymorph. Dense cubic Li7La3Zr2O12-type phases are typically formed as a result of Al-incorporation in an unreliable reaction with the alumina crucible at elevated temperatures of up to 1230 C. High Al-incorporation levels are al...

Limit current density in 2 D metallic granular packings

The electrical properties 2D of packed metallic pentagons have been studied. The characterization of such metallic pentagon heaps (like i − V measurements) has been achieved and has allowed to point out two distinct conduction regimes. They are separated by a transition line along which the system exhibits a memory effect behavior due to the irreversible improvement of electrical contacts betwe...

Comment on “ Critical current density from magnetization hysteresis data using the critical - state model ”

A recent paper [Physical Review B 64 014508 (2001)] claims to present an exact method to extract the critical current density J C from the M-H hysteresis curve. We show that this claim appears unjustified.