Methods to Create Novel La_2−<i>x</i>Sr<i>_x</i>CuO₄ Devices with Multiple Atomically Sharp Interfaces

Abstract

We present methods to create devices that utilize the high-temperature superconductor La2-xSrxCuO4 grown by atomic layer-by-layer molecular beam epitaxy (ALL-MBE). The ALL-MBE synthesis technique provides atomically precise interfaces necessary for the tunnel junctions, Josephson junctions, and dyon detection devices that will be considered. A series of microfabrication processing steps using established techniques are given for each device, and their details are discussed. These procedures are easily extended to generate more complex designs and could be suitable for a wider variety of materials.

Keywords

• superconductivity
• cuprates
• microfabrication