Recent Topics in High-T_c Superconductive Electronics

Abstract

This paper reports selected recent topics in high-T c superconductive electronics. Improved process technology for high-T c digital electronics, the development of a sampling oscilloscope, magnetic immunoassay using a high-T c superconducting quantum interference device (SQUID), scanning laser-SQUID for integrated circuits testing, terahertz radiation from high-T c superconductors, and optical control of vortices are reviewed.

Terahertz Emission Functionality of High‐Temperature Superconductors and Similar Complex Systems

“…[40][41][42][43][44][45][46][47][48][49][50][51][52][53][54] Such a rare combination of the enormous potential for real-time technological applications and the richness of a wide range of physical phenomena caught the attention of the condensed matter community. Following the unparalleled excitement of high T c superconductors, the colossal magnetoresistive (CMR) manganites of type R 1−x A X MnO 3 (R = rare-earth cations, A = divalent cations) were the next major area of research for two reasons.…”

“…Following the unparalleled excitement of high T c superconductors, the colossal magnetoresistive (CMR) manganites of type R 1−x A X MnO 3 (R = rare-earth cations, A = divalent cations) were the next major area of research for two reasons. [43] Copyright 2005, IOP Publishing. The second reason is the comparable energetics of the interrelationships between the charge, spin, lattice, and orbital interactions inducing many electronic and magnetic exotic phases to allow electronic, magnetic, and optical control of all the physical properties.…”

“…Figure 5b displays the supercurrent distribution with a transport current of 400 mA, which indicates that the supercurrent flows in the middle of the line while expelling the penetrated magnetic flux. [42,43] Illumination with the fs optical pulse at a laser power of ≈0.1 nJ per shot evaporates the supercurrent partially and locally, and the magnetic flux is allowed to exist as explained in Figure 6, which means that the photons change the initial conditions for the superconducting state to those similar to the field-cooled state. Figure 7 shows the vortex letter "A" vitalized by THz emission imaging.…”

Laser terahertz emission microscopy

“…The inspection and failure analysis of semiconductor devices has become a critical issue with increasing demands for quality and reliability in circuits [34][35][36]. Currently LSI failure analysis uses emission microscopy, infrared opticalbeam-induced resistance-change and electron beam testing to the localize electrical failure position nondestructively.…”

Laser Terahertz Emission Microscope

“…Thus construction of a laser-THz emission microscope (LTEM) would provide a new tool for material science and application [2][3][4][5].…”