MRI: Acquisition of a Cryogen-Free, State-of-the-Art, Superconducting Quantum Interference Device (SQuID) Magnetometer

在主要研究仪器计划（MRI）的这一奖项和化学研究仪器计划（CRIF）的支持下，来自加州洛杉矶大学的Sarah Tolbert教授及其同事Louis Bouchard，Greg卡曼，Jane Chang和亚历山大Spokoyny获得了一台无低温，最先进的超导量子干涉装置（SQuID）磁力计。该仪器由两个超导体组成，它们之间由非常薄的绝缘层隔开。这种磁力计能够检测非常小的磁场，包括在活生物体中产生的磁场。通过使用直流（DC）或交流电压（AC）的电压变化来控制磁通量。为了能够测量磁场中如此微小的变化，该仪器在非常低的温度下运行，使用液氦实现，这是一种有限的资源。为了避免浪费这样一个宝贵的元素，这个仪器使氦冷却剂（冷却剂）免费。这台磁力计被放置在用户设施中，在科学研究人力资源开发方面发挥作用。它丰富了许多研究生，博士后和本科研究人员的研究经验。它作为整个加州州立大学系统的用户的资源，该系统的学生人数不足。总的来说，磁力计的应用非常广泛，从定位水下含金属的沉船和潜艇到测量地球磁场，再到测量大脑或心脏中的微小磁场，该奖项旨在加强各级的研究和教育，特别是在以下领域：（a）了解热能收集的热重材料;（B）研究凝聚态系统中的磁状态;（b）研究磁状态;（c）研究磁状态。（c）研究作为分子和有机磁体构件的富硼团簇;（d）探索将多铁性材料用于自旋电子器件;（e）研究单分子磁体;（f）研究量子反常半效应和拓扑超导体;以及（g）将多铁性材料用作新材料。

With this award from the Major Research Instrumentation Program (MRI) and support from the Chemistry Research Instrumentation Program (CRIF), Professor Sarah Tolbert from the University of California Los Angeles and colleagues Louis Bouchard, Greg Carman, Jane Chang and Alexander Spokoyny have acquired a cryogen-free, state-of-the-art, superconducting quantum interference device (SQuID) magnetometer. This instrument consists of two superconductors separated by very thin insulating layers. Such a magnetometer is capable of detecting very small magnetic fields including those produced in living organisms. The magnetic flux is controlled by voltage variations using either direct (DC) or alternating voltages (AC). To be able to measure such small variations in magnetic fields, the instrument operates at very low temperatures achieved with the use of liquid helium, a limited resource. To avoid waste of such a valuable element, this instrument recycles the helium making it cryogen (coolant) free. This magnetometer is placed in a user facility and plays a role in the development of human resources in scientific research. It enriches the research experience of many graduate students, postdoctoral fellows and undergraduate researchers. It serves as a resource for users across the California State University System which is heavily populated by underrepresented students. In general, magnetometers have very diverse applications, ranging from locating submerged metal-containing ship wrecks and submarines to measuring Earth's magnetic fields to measuring tiny magnetic fields in the brain or heart.The award is aimed at enhancing research and education at all levels, especially in areas such as (a) understanding thermogravimetric materials for thermal energy harvesting; (b) studying magnetic states in condensed matter systems; (c) studying boron-rich clusters as building blocks for molecular and organic magnets; (d) exploring the use of multiferroic materials for spintronic devices; (e) studying single molecule magnets; (f) studying quantum anomalous half effect and topological superconductors, and (g) applying multiferroics as new materials.