JOURNAL ARTICLE
超晶格YBa_2Cu_3O_7/PrBa_2/Cu_3O_7的X射线衍射研究
Year: 1995 Journal: Chinese Science Bulletin (Chinese Version) Vol: 40 (14)Pages: 1271-1275 Publisher: Science China Press
Abstract
随着薄膜制备技术的发展,高质量的高温超导超晶格YBa_2Cu_3O_7/PrBa_2Cu_3O_7样品的获得为实验研究高温超导有关物性方面提供了其它试样所无法替代的可能性,其中一个非常有意义的特性是当一比较薄的YBCO超导层被PrBCO层隔开时,其T_c将随着非超导层PrBCO层的厚度增加而下降,据此在理论上也相应地提出了各种解释模型,诸如自旋极化模型、Kosterlitz-Thouless相变模型及最近临效应模型等.但所有这些理论模型都假设超晶格间
Keywords:
Materials science Condensed matter physics Crystallography Chemistry Physics
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