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所谓超导体就是没有电阻的材料。这种看似简单的现象,多年来却吸引着无数科学家孜孜以求。近十年来,超导研究的几项重大成果,改变了超导应用的前景。 1986年9月,苏黎世IBM实验室的两位研究人员乔治·贝德罗兹等在超导研究方面取得了一项重要成果:他们发现钡镧铜氧化物在-238℃时转变为超导体,也就是说,其临界温度为-238℃,在这个温度之上,其性能与普通导体一样。这一发现很重要,因为它提高了临界温度(以前的临界温度记录为-250℃),而且此次发现的是一
The so-called superconductor is no resistance of the material. This seemingly simple phenomenon has attracted countless scientists for many years. In the past ten years, several major achievements of superconductivity research have changed the prospect of superconducting applications. In September 1986, George Bedroz, two researchers at the IBM Laboratory in Zurich, made an important achievement in superconductivity research: They found that barium lanthanum copper oxide was converted to a superconductor at -238 ° C. That is to say, its critical temperature is -238 ℃, above this temperature, its performance is same as ordinary conductor. This finding is important because it increases the critical temperature (the previous critical temperature was recorded as -250 ° C) and this time it was found that one