This review article focuses on the sol-gel preparation of high temperature superconducting
oxides wherein different classes of gel technologies were utilized. These involve: 1) the sol …

In materials with strong local Coulomb interactions, simple defects such as atomic
substitutions strongly affect both macroscopic and local properties of the system. A …

This is a revised version of the first edition published in 1991. At the same time, this is a
revised version of the Syokabo edition, which was written in Japanese and published in …

We examine the effect on the superconducting transition temperature (T c) of chemical
inhomogeneities in Bi 2 Sr 2 CuO 6+ δ and Bi 2 Sr 2 CaCu 2 O 8+ δ single crystals. Cation …

This text presents a complete account of electron theory in both periodic and nonperiodic
metallic systems. The author's accessible approach allows for comparisons with …

HIGH-PRESSURE synthesis has proved a useful technique for obtaining new, metastable
copper oxide superconductors; for example, oxygen insertion into Sr2CuO3 at 6 GPa (ref. 1) …

Hole-doped cuprate high temperature superconductors have ushered in the modern era of
high temperature superconductivity (HTS) and have continued to be at center stage in the …

A comprehensive review of structure work on high-T c oxides as reported during the years
1987 and 1988 is given. Thirteen structures are refined from X-ray single-crystal and/or …

We present a systematic study of normal-state transport properties in a series of c-axis-
oriented Y Ba 2 Cu 3 O x (YBCO) epitaxial thin films and Y Ba 2 Cu 3 O 7/Pr Ba 2 Cu 3 O 7 …

The oxygen isotope effect on the relaxation rate of crystal-field excitations in the slightly
underdoped high-temperature superconductor HoBa 2 Cu 4 O 8 has been investigated by …