Transport and noise properties of YBCO nanowire based nanoSQUIDs
Review article, 2019

The development of quantum limited magnetic flux sensors has recently gained a lot of attention for the possibility of detecting the magnetic moment of nanoscaled systems. Here, the ultimate goal is the observation of a single spin. Such sensors are of fundamental importance for applications, ranging from spintronics and spin-based quantum information processing, to fundamental studies of nano-magnetism in molecules and magnetic nanoclusters. A nano-scale superconducting quantum interference device (nanoSQUID) is indeed a promising candidate to reach this ambitious goal. Nanowires, fabricated of high critical temperature superconductors (HTS), have been shown to be a valid candidate for the realization of nanoSQUIDs. A crucial requirement to achieve the necessary flux sensitivity and spatial resolution, is a SQUID loop on the nanometer scale. Moreover, HTS nanowire-based SQUIDs in combination with large area pickup loops or flux transformers might become instrumental in magnetometer applications, such as magneto encephalography and low field magnetic resonance imaging, where low intrinsic magnetic field noise is required. In this review we will give a survey on the state of the art of YBa2Cu3O7-delta thin film nanowires and their implementation in low noise nanoSQUIDs and magnetometers.

YBCO

magnetometer

high critical temperature superconductor

nanoSQUID

nanowire

Author

Edoardo Trabaldo

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Riccardo Arpaia

Polytechnic University of Milan

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Marco Arzeo

European Organization for Nuclear Research (CERN)

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Eric Andersson

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

D. Golubev

Aalto University

Floriana Lombardi

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Thilo Bauch

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Superconductor Science and Technology

0953-2048 (ISSN) 1361-6668 (eISSN)

Vol. 32 7 073001

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

Condensed Matter Physics

DOI

10.1088/1361-6668/ab1814

More information

Latest update

9/11/2019