公开(公告)号：WO2016170539A1

公开(公告)日：2016-10-27

申请号：PCT/IL2016/050421

申请日：2016-04-20

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

Inventor： ZELDOV, Eli ,  URI, Aviram ,  ANAHORY, Yonathan ,  HOOVINAKATTE RANGANATH, Naren ,  MAYASOEDOV, Yuri ,  EMBON, Lior

IPC: G01R33/00 ,  G01R33/02 ,  H01L39/22 ,  H01L39/14

CPC classification number: G01R33/035

Abstract: A nanoscale superconducting quantum interference device (SQUID) with an in- situ electronically tunable interference pattern. A four-terminal four-junction SQUID On Tip (mSOT) with effective diameter as small as 165 nm is fabricated at the apex of a sharp pipette using self-aligned three step deposition of Pb. In contrast to conventional two-junction two-terminal SQUIDs which display optimal sensitivity with an applied field biased to about quarter of flux quantum, (Φ 0 /4), the additional terminals and junctions allow attaining the optimal sensitivity at any value of the applied field, thus eliminating "blind spots". The device achieves spin sensitivity of 5 to 8 μ Β /Hz 1/2 over a continuous field range of 0 to 0.5 T, thus providing a highly sensitive tool for high dynamic range nanoscale magnetic imaging.

Abstract translation: 具有原位电子可调谐干涉图案的纳米超导量子干涉装置（SQUID）。 使用自对准的三步沉积Pb在尖锐的移液管的顶点处制造有效直径小至165nm的四端子四结SQUID On Tip（mSOT）。 与常规的双结两端SQUID相比，其显示出最佳灵敏度，其施加场偏置于通量量子的约四分之一（Φ0/ 4），附加端子和接点允许在施加场的任何值处达到最佳灵敏度 ，从而消除“盲点”。 该装置在0至0.5T的连续场范围内实现5至8μB/ Hz1 / 2的自旋灵敏度，从而为高动态范围纳米级磁性成像提供了高度灵敏的工具。

公开(公告)号：WO2016142945A1

公开(公告)日：2016-09-15

申请号：PCT/IL2016/050262

申请日：2016-03-10

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

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

IPC: G01Q60/58 ,  G01N27/00 ,  G01N25/18

CPC classification number: G01Q60/58 ,  G01N27/041

Abstract: 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.

Abstract translation: 一种在低温热扫描显微镜中使用的装置及其方法，提供具有微开尔文次序的温度分辨率的纳米尺度范围内的非接触，非侵入性局部温度和热导率测量。 安装在细长支撑探针的尖端上的超导电帽电连接到超导引线，用于承载电流通过盖。 引线的临界超导电流被配置为大于由帽支持的临界电流，并且帽的临界电流被配置为其温度的函数。 因此，通过测量其临界超导电流来测量盖的温度。 在相关实施例中，驱动大于盖的临界电流的电流淬灭了帽的超导性，并且允许帽向被扫描的样品中散发电阻热。 因此，以此模式扫描样品可以显示其导热性图案。

公开(公告)号：WO2014188416A1

公开(公告)日：2014-11-27

申请号：PCT/IL2014/050441

申请日：2014-05-20

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

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

IPC: G01R33/02 ,  G01R33/24 ,  G01R33/035 ,  G01R1/067

CPC classification number: G01R33/0354 ,  G01R33/0052 ,  G01R33/035

Abstract: 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 by a superconducting layer and separated 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.

Abstract translation: 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，每个连接点由超导层形成并由屏障隔开。 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。