公开(公告)号：US20180045754A1

公开(公告)日：2018-02-15

申请号：US15557104

申请日：2016-03-10

申请人： YEDA RESEARCH AND DEVELOPMENT CO. LTD.

发明人： Eli ZELDOV ,  Lior EMBON ,  Dorri HALBERTAL ,  Yonathan ANAHORY ,  Yuri MYASOEDOV ,  Jo CUPPENS

IPC分类号： G01Q60/58

CPC分类号： G01Q60/58 ,  G01K7/006 ,  G01K2203/00 ,  G01N27/041

摘要： A device and methods for use thereof in low-temperature thermal scanning microscopy, providing non-contact, non-invasive localized temperature and thermal conductivity measurements in nanometer scale ranges with a temperature resolution in the micro-Kelvin order. A superconductive cap mounted on the tip of an elongated support probe is electrically-connected to superconductive leads for carrying electrical current through the cap. The critical superconducting current of the leads is configured to be greater than the critical current supported by the cap, and the cap's critical current is configured to be a function of its temperature. Thus, the temperature of the cap is measured by measuring its critical superconducting current. In a related embodiment, driving a current greater than the critical current of the cap quenches the cap's superconductivity, and permits the cap to dissipate resistive heat into the sample being scanned. Scanning of the sample in this mode thus images its thermal conductivity patterns.

公开(公告)号：US20160103192A1

公开(公告)日：2016-04-14

申请号：US14893085

申请日：2014-05-20

申请人： YEDA RESEARCH AND DEVELOPMENT CO. LTD.

发明人： Jonathan REINER ,  Lior EMBON ,  Yonathan ANAHORY ,  Yuri MYASOEDOV ,  Eli ZELDOV

IPC分类号： G01R33/035 ,  G01R33/00

CPC分类号： G01R33/0354 ,  G01R33/0052 ,  G01R33/035

摘要： The present invention discloses a sensor device comprising a probe carrying a three-dimensional magnetic field sensor. The probe has a conical tip portion with an edge being configured as the three-dimensional magnetic field sensor. The sensor at the edge of the tip comprises at least three Josephson junctions, each junction being formed of a superconducting layer interrupted by a barrier. The barrier comprises a non-superconducting layer or a geometrical constriction. The conical tip portion of the probe forms a tapered three-dimensional structure having at least one arc-like part crossing the opening of the tip portion such that the apex has a closed-loop basis and a plurality of complimentary spaced-apart facets defined by the at least one arc, thereby enabling measurement of both in-plane and out-of-plane magnetic fields separately.

摘要翻译： 本发明公开了一种包括携带三维磁场传感器的探头的传感器装置。 探头具有锥形尖端部分，其边缘被配置为三维磁场传感器。 尖端边缘处的传感器包括至少三个约瑟夫逊结，每个连接点由被屏障隔断的超导层形成。 屏障包括非超导层或几何收缩。 探针的锥形尖端部分形成锥形三维结构，其具有至少一个与尖端部分的开口相交的弧形部分，使得顶点具有闭环基和多个互补的间隔开的面，由 所述至少一个电弧，从而能够分别测量平面内和平面外的磁场。