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We present a portable optically pumped magnetometer instrument for ultra-sensitive measurements within the Earth's magnetic field. The central part of the system is a sensor head operating a MEMS-based Cs vapor cell in the light-shift…

Inductance is a key parameter when optimizing the performance of superconducting quantum interference device (SQUID) magnetometers made from the high temperature superconductor YBa$_2$Cu$_3$O$_{7-x}$ (YBCO) because lower SQUID inductance…

Instrumentation and Detectors · Physics 2020-01-29 S. Ruffieux , A. Kalaboukhov , M. Xie , M. Chukharkin , C. Pfeiffer , S. Sepehri , J. F. Schneiderman , D. Winkler

In this paper, a probabilistic method for map matching localisation based on magnetometery measurement and total magnetic intensity maps is described. We show that the method is able to effectively address the challenge issues associated…

Optimization and Control · Mathematics 2023-02-14 Xuezhi Wang , Wenchao Li , Bill Moran , Brant C. Gibson , Liam T. Hall , David Simpson , Allison N. Kealy , Andrew D. Greentree

Scanning nanoscale superconducting quantum interference devices (SQUIDs) are gaining interest as highly sensitive microscopic magnetic and thermal characterization tools of quantum and topological states of matter and devices. Here we…

Mesoscale and Nanoscale Physics · Physics 2019-11-07 Kousik Bagani , Jayanta Sarkar , Aviram Uri , Michael L. Rappaport , Martin E. Huber , Eli Zeldov , Yuri Myasoedov

We present an optimization study of the spin sensitivity of nanoSQUIDs based on resistively shunted grain boundary Josephson junctions. In addition the dc SQUIDs contain a narrow constriction onto which a small magnetic particle can be…

We present an optimization study of the spin sensitivity of nanoSQUIDs based on resistively shunted grain boundary Josephson junctions. In addition the dc SQUIDs contain a narrow constriction onto which a small magnetic particle can be…

Band bending is a central concept in solid-state physics that arises from local variations in charge distribution especially near semiconductor interfaces and surfaces. Its precision measurement is vital in a variety of contexts from the…

Considering the growing interest in magnetic materials for unconventional computing, data storage, and sensor applications, there is active research not only on material synthesis but also characterisation of their properties. In addition…

The rapid progress in antiferromagnetic and altermagnetic spintronics has led to increased interest in magnetic materials with vanishing net magnetization but strong spin-dependent transport properties. As thin films of such materials…

Materials Science · Physics 2026-01-09 Katarzyna Gas , Maciej Sawicki

Superconducting quantum interference devices (SQUIDs) are exceptionally sensitive magnetometers capable of detecting weak magnetic fields. Miniaturizing these devices and integrating them onto scanning probes enables high-resolution imaging…

The sensitivity and automation capabilities of modern superconducting quantum interference device (SQUID) magnetometers are currently unmatched. The measured moment values are, however, prone to deviations from their actual value due to…

Applied Physics · Physics 2020-07-16 C. O. Amorim , F. Mohseni , V. S. Amaral , J. S. Amaral

The magnetic inversion method is one of the non-destructive geophysical methods, which aims to estimate the subsurface susceptibility distribution from surface magnetic anomaly data. Recently, supervised deep learning methods have been…

Geophysics · Physics 2023-08-24 Yinshuo Li , Zhuo Jia , Wenkai Lu , Cao Song

We present a new nanoscale superconducting quantum interference device (SQUID) whose interference pattern can be shifted electrically in-situ. The device consists of a nanoscale four-terminal/four-junction SQUID fabricated at the apex of a…

This paper proposes a novel method called MagShield, designed to address the issue of magnetic interference in sparse inertial motion capture (MoCap) systems. Existing Inertial Measurement Unit (IMU) systems are prone to orientation…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Yunzhe Shao , Xinyu Yi , Lu Yin , Shihui Guo , Junhai Yong , Feng Xu

For modeling the magnetic properties of concentrated and diluted magnetic semiconductors, we use the Kondo-lattice model. The magnetic phase diagram is derived by inspecting the static susceptibility of itinerant band electrons, which are…

Materials Science · Physics 2009-11-10 W. Nolting , T. Hickel , A. Ramakanth , G. G. Reddy , M. Lipowczan

Paleomagnetically useful information is expected to be recorded by samples with moments up to three orders of magnitude below the detection limit of standard superconducting rock magnetometers. Such samples are now detectable using recently…

Geophysics · Physics 2016-11-23 Eduardo A. Lima , Benjamin P. Weiss

Superconducting Quantum Interference Devices (SQUIDs) are one of the most popular devices in superconducting electronics. They combine the Josephson effect with the quantization of magnetic flux in superconductors. This gives rise to one of…

Superconductivity · Physics 2018-05-21 M. J. Martínez-Pérez , D. Koelle

Scanning SQUID susceptometry images the local magnetization and susceptibility of a sample. By accurately modeling the SQUID signal we can determine the physical properties such as the penetration depth and permeability of superconducting…

Precise control of magnetic fields is a frequent challenge encountered in experiments with atomic quantum gases. Here we present a simple method for performing in-situ monitoring of magnetic fields that can readily be implemented in any…

Quantum Gases · Physics 2018-02-14 Ludwig Krinner , Michael Stewart , Arturo Pazmiño , Dominik Schneble

Magnetometer is a significant sensor for integrated navigation. However, it suffers from many kinds of unknown dynamic magnetic disturbances. We study the problem of online estimating such disturbances via a nonlinear optimization aided by…

Systems and Control · Computer Science 2019-02-28 Jin Wu