Low-Frequency Relaxation Spectrum of La₂CuO₄ Oxide Compound

【摘要】 <正> La₂CuO₄, the parent compound of the La system high-temperaturesuperconductors, can be rendered superconducting at～40 K by substituting A²⁺（A=Ca, Sr, Ba） at La³⁺ sites or introducing excess oxygen to compound by annealingunder high oxygen pressures as well as other treatments. It is a hard Moot insulatorof which crystal cells contain Cu-O sheet, and 3D antiferromagnetic property has更多还原