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1. 发明授权

US08204564B2 High temperature interfacial superconductivity 有权
标题翻译：高温界面超导性
公开(公告)号：US08204564B2
公开(公告)日：2012-06-19
申请号：US12264742
申请日：2008-11-04
申请人： Ivan Bozovic , Gennady Logvenov , Adrian Mihai Gozar
发明人： Ivan Bozovic , Gennady Logvenov , Adrian Mihai Gozar
IPC分类号： H01L39/24
CPC分类号： H01L39/128 , H01L39/146 , H01L39/225 , H01L39/2432 , Y10T428/31678
摘要： High-temperature superconductivity confined to nanometer-scale interfaces has been a long standing goal because of potential applications in electronic devices. The spontaneous formation of a superconducting interface in bilayers consisting of an insulator (La2CuO4) and a metal (La1−xSrxCuO4), neither of which is superconducting per se, is described. Depending upon the layering sequence of the bilayers, Tc may be either ˜15 K or ˜30 K. This highly robust phenomenon is confined to within 2-3 nm around the interface. After exposing the bilayer to ozone, Tc exceeds 50 K and this enhanced superconductivity is also shown to originate from a 1 to 2 unit cell thick interfacial layer. The results demonstrate that engineering artificial heterostructures provides a novel, unconventional way to fabricate stable, quasi two-dimensional high Tc phases and to significantly enhance superconducting properties in other superconductors. The superconducting interface may be implemented, for example, in SIS tunnel junctions or a SuFET.
摘要翻译：限于纳米级界面的高温超导体是电子设备潜在应用的长期目标。描述了由绝缘体（La2CuO4）和金属（La1-xSrxCuO4）组成的双层中自发形成超导界面，这两者都不是超导本身。取决于双层的分层序列，Tc可以是〜15K或〜30K。这种高度鲁棒的现象被限制在界面周围2-3nm内。在将双层暴露于臭氧之后，Tc超过50K，并且这种增强的超导性也显示出来源于1至2个单元电池厚的界面层。结果表明，工程人造异质结构提供了一种新颖的非常规方法来制造稳定的准二维高Tc相，并显着提高其他超导体中的超导性能。超导界面可以例如在SIS隧道结或SuFET中实现。

2. 发明申请

US20090137398A1 High Temperature Interfacial Superconductivity 有权
标题翻译：高温界面超导性
公开(公告)号：US20090137398A1
公开(公告)日：2009-05-28
申请号：US12264742
申请日：2008-11-04
申请人： Ivan Bozovic , Gennady Logvenov , Adrian Mihai Gozar
发明人： Ivan Bozovic , Gennady Logvenov , Adrian Mihai Gozar
IPC分类号： H01L39/02 , H01L39/24
CPC分类号： H01L39/128 , H01L39/146 , H01L39/225 , H01L39/2432 , Y10T428/31678
摘要： High-temperature superconductivity confined to nanometer-scale interfaces has been a long standing goal because of potential applications in electronic devices. The spontaneous formation of a superconducting interface in bilayers consisting of an insulator (La2CuO4) and a metal (La1−xSrxCuO4), neither of which is superconducting per se, is described. Depending upon the layering sequence of the bilayers, Tc may be either ˜15 K or ˜30 K. This highly robust phenomenon is confined to within 2-3 nm around the interface. After exposing the bilayer to ozone, Tc exceeds 50 K and this enhanced superconductivity is also shown to originate from a 1 to 2 unit cell thick interfacial layer. The results demonstrate that engineering artificial heterostructures provides a novel, unconventional way to fabricate stable, quasi two-dimensional high Tc phases and to significantly enhance superconducting properties in other superconductors. The superconducting interface may be implemented, for example, in SIS tunnel junctions or a SuFET.
摘要翻译：限于纳米级界面的高温超导体是电子设备潜在应用的长期目标。描述了由绝缘体（La2CuO4）和金属（La1-xSrxCuO4）组成的双层中自发形成超导界面，这两者都不是超导本身。取决于双层的分层顺序，Tc可以是〜15K或〜30K。这种高度鲁棒的现象被限制在界面周围2-3nm范围内。在将双层暴露于臭氧之后，Tc超过50K，并且这种增强的超导性也显示出来源于1至2个单元电池厚的界面层。结果表明，工程人造异质结构提供了一种新颖的非常规方法来制造稳定的准二维高Tc相，并显着提高其他超导体中的超导性能。超导界面可以例如在SIS隧道结或SuFET中实现。

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