公开(公告)号：US06184765B2

公开(公告)日：2001-02-06

申请号：US09226299

申请日：1999-01-07

Applicant: Sabyasachi Bhattacharya ,  Mark J. Higgins ,  Satyajit S. Banerjee ,  Nitin Patil ,  Srinivasan Ramakrishnan ,  Arun K. Grover ,  Chandrasekhar V.R. Turumella ,  Vinod C. Sahni ,  Gurazada Ravikumar ,  Prashant K. Mishra

Inventor： Sabyasachi Bhattacharya ,  Mark J. Higgins ,  Satyajit S. Banerjee ,  Nitin Patil ,  Srinivasan Ramakrishnan ,  Arun K. Grover ,  Chandrasekhar V.R. Turumella ,  Vinod C. Sahni ,  Gurazada Ravikumar ,  Prashant K. Mishra

IPC: H01F600

CPC classification number: H01L39/14 ,  H01L39/12 ,  Y10S505/86

Abstract: The present invention is directed, inter alia, to a switch comprising: (A) a superconducting material whose field cooled and zero field cooled ac permittivities differ from each other, and whose field cooled and zero field cooled ac susceptibilities differ from each other, in a range of temperature below the superconducting transition temperature of the material; (B) means for applying a static magnetic field to said material; (C) means for controllably applying to said material an oscillating magnetic field of a magnitude effective to convert said material from a state exhibiting filed cooled permittivity to a state exhibiting zero field cooled permittivity; and (D) means for applying to said material a heat pulse effective to convert said material from a state exhibiting zero field cooled permittivity to a state exhibiting field cooled permittivity, said switch operating between a superconducting zero field cooled state and a superconducting field cooled state. The present invention is also directed, inter alia, to a method of making such a switch.

Abstract translation: 本发明特别涉及一种开关，包括：（A）其场致冷场和零场冷却通量彼此不同的超导材料，其场冷场和零场冷却交流磁化率彼此不同，在 低于材料的超导转变温度的温度范围;（B）用于向所述材料施加静态磁场的装置;（C）用于可控地向所述材料施加大小有效地将所述材料转化的振荡磁场的装置 对呈现零场冷却介电常数的状态呈现冷却介电常数的状态; 和（D）用于向所述材料施加有效地将所述材料从呈现零场冷却介电常数的状态转换为呈现场冷却介电常数的状态的热脉冲的装置，所述开关在超导零场冷却状态和超导场冷却状态之间操作 本发明还涉及制造这种开关的方法。