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1.发明授权Switch useful at superconducting temperatures and comprising superconducting material 有权开关在超导温度下有用并且包括超导材料公开(公告)号：US06184765B2
公开(公告)日：2001-02-06
申请号：US09226299
申请日：1999-01-07
申请人： 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
发明人： 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分类号： H01F600
CPC分类号： H01L39/14 , H01L39/12 , Y10S505/86
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US06396261B1
公开(公告)日：2002-05-28
申请号：US09528689
申请日：2000-03-20
IPC分类号： G01R3312
CPC分类号： G01Q60/54 , G01R33/0385
摘要： A scanning AC hall microscope and a method which measures the domain pattern of magnetic materials, such as magnetic storage media, by measuring the oscillatory motion of a domain boundary under the influence of an external applied AC magnetic field, which allows a differentiation between domains which are immobile and domains which are mobile.
摘要翻译： 一种扫描式AC霍尔显微镜和一种通过在外部施加的AC磁场的影响下测量畴边界的振荡运动来测量诸如磁性存储介质的磁性材料的区域图案的方法，其允许区域之间的区分 是移动的和移动的领域。
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3.发明授权公开(公告)号：US06392919B1
公开(公告)日：2002-05-21
申请号：US09855040
申请日：2001-05-14
IPC分类号： G11C1122
CPC分类号： H01L28/55
摘要： A method for reducing imprint in a ferroelectric device which includes the steps of: applying a signal having a bipolar pulse shape for a predetermined time to the ferroelectric device; and decreasing the signal amplitude gradually in predetermined intervals of time and amplitude. Preferably, the bipolar shape signal is a sinusoidal wave, a square wave, or a sawtooth wave and the ferroelectric device is a capacitor of a memory cell in a computer. Also provided is an apparatus for reducing imprint in a ferroelectric device.
摘要翻译： 一种用于减小铁电体器件中的压印的方法，包括以下步骤：将具有双极脉冲形状的信号预定时间施加到铁电体器件; 并以预定的时间和幅度间隔逐渐降低信号幅度。 优选地，双极形状信号是正弦波，方波或锯齿波，并且铁电体装置是计算机中的存储单元的电容器。 还提供了用于减小铁电体装置中的印记的装置。
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4.发明授权公开(公告)号：US06294393B1
公开(公告)日：2001-09-25
申请号：US09644222
申请日：2000-08-23
IPC分类号： H01L2100
CPC分类号： H01L28/55
摘要： A method for reducing imprint in a ferroelectric device which includes the steps of: applying a signal having a bipolar pulse shape for a predetermined time to the ferroelectric device; and decreasing the signal amplitude gradually in predetermined intervals of time and amplitude. Preferably, the bipolar shape signal is a sinusoidal wave, a square wave, or a sawtooth wave and the ferroelectric device is a capacitor or a memory cell in a computer. Also provided is an apparatus for reducing imprint in a ferroelectric device.
摘要翻译： 一种用于减小铁电体器件中的压印的方法，包括以下步骤：将具有双极脉冲形状的信号预定时间施加到铁电体器件; 并以预定的时间和幅度间隔逐渐降低信号幅度。 优选地，双极形状信号是正弦波，方波或锯齿波，并且铁电装置是计算机中的电容器或存储单元。 还提供了用于减小铁电体装置中的印记的装置。
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