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Nanoscale superconducting quantum interference devices (SQUIDs) demonstrate record sensitivities to small magnetic moments, but are typically sensitive only to the field component that is normal to the plane of the SQUID and out-of-plane…

Cosmic microwave background (CMB) measurements are fundamentally limited by photon statistics. Therefore, ground-based CMB observatories have been increasing the number of detectors that are simultaneously observing the sky. Thanks to the…

Instrumentation and Methods for Astrophysics · Physics 2020-03-18 T. de Haan , A. Suzuki , S. T. P. Boyd , R. H. Cantor , A. Coerver , M. A. Dobbs , R. Hennings-Yeomans , W. L. Holzapfel , A. T. Lee , G. I. Noble , G. Smecher , J. Zhou

Nitrogen vacancy (NV) centers in diamonds have been explored for realizing a wide range of sensing applications in the last decade due to their unique quantum properties. Here we realize a compact and portable magnetometer with an ensemble…

Quantum Physics · Physics 2024-02-27 Himanshu Kumar , Dasika Shishir , Maheshwar Mangat , Siddharth Tallur , Kasturi Saha

We describe the development of a simple atomic magnetometer using $^{87}$Rb vapor suitable for Earth magnetic field monitoring. The magnetometer is based on time-domain determination of the transient precession frequency of the atomic…

Atomic Physics · Physics 2015-06-05 L. Lenci , S. Barreiro , P. Valente , H. Failache , A. Lezama

Two-dimensional, solution-processable semiconductor materials are anticipated to be used in low-cost electronic applications, such as transistors and solar cells. Here, lead sulfide nanosheets with a lateral size of several microns are…

Materials Science · Physics 2015-07-20 Thomas Bielewicz , Sedat Dogan , Christian Klinke

This article presents several design techniques to fabricate micro-electro-mechanical systems (MEMS) using standard complementary metal-oxide semiconductor (CMOS) processes. They were applied to fabricate high yield CMOS-MEMS shielded…

Instrumentation and Detectors · Physics 2021-09-24 Juan Valle , Josep-María Sánchez-Chiva , Daniel Fernández , Jordi Madrenas

We present an open-source program free to download for academic use with full user-friendly graphical interface for performing flexible and robust background subtraction and dipole fitting on magnetization data. For magnetic samples with…

Data Analysis, Statistics and Probability · Physics 2020-02-07 Matthew J. Coak , Cheng Liu , David M. Jarvis , Seunghyun Park , Matthew J. Cliffe , Paul A. Goddard

A Faraday force magnetometer is presented for measurements of magnetization at temperatures down to 100~mK and in magnetic fields up to 14~T. The specimen is mounted on a flexible cantilever forming a force-sensing capacitor in combination…

Materials Science · Physics 2020-07-22 Dominic Blosser , Leonardo Facheris , Andrey Zheludev

Nitrogen-vacancy quantum defects in diamond offer a promising platform for magnetometry because of their remarkable optical and spin properties. In this Letter, we present a high-sensitivity and wide-bandwidth fiber-based quantum…

We optimised the magnetic field homogeneity of two canonical designs for mobile microfluidic NMR applications: two parallel magnets with an air gap and a modified Halbach array. Along with the influence of the sample length, general design…

Applied Physics · Physics 2021-03-26 Yannick Klein , Leon Abelmann , Han Gardeniers

We propose to use the quantum properties of a superconducting flux qubit in the construction of a magnetometer with quantum limited sensitivity. The main advantage of a flux qubit is that its noise is rather low, and its transfer functions…

Superconductivity · Physics 2007-05-23 E. Il'ichev , Ya. S. Greenberg

We present SNSPDs from NbN nanowires shaped after square-spiral that allows an increase not only in critical currents but also an extension of spectral detection efficiencies by just applying an external magnetic field. Using negative…

Superconductivity · Physics 2019-05-22 Ilya Charaev , Alexei Semenov , Konstantin Ilin , Michael Siegel

The sensing of magnetic fields has important applications in medicine, particularly to the sensing of signals in the heart and brain. The fields associated with biomagnetism are exceptionally weak, being many orders of magnitude smaller…

Applied Physics · Physics 2023-11-14 Matthew W. Dale , Gavin W. Morley

We describe an experimental study of spin-projection noise in a high sensitivity alkali-metal magnetometer. We demonstrate a four-fold improvement in the measurement bandwidth of the magnetometer using continuous quantum non-demolition…

Quantum Physics · Physics 2010-01-18 V. Shah , G. Vasilakis , M. V. Romalis

Using micromagnets to enable electron spin manipulation in silicon qubits has emerged as a very popular method, enabling single-qubit gate fidelities larger than 99:9%. However, these micromagnets also apply stray magnetic field gradients…

Mesoscale and Nanoscale Physics · Physics 2021-09-15 N. I. Dumoulin Stuyck , F. A. Mohiyaddin , R. Li , M. Heyns , B. Govoreanu , I. P. Radu

The kinetic inductance properties of a thin superconducting sample of BSCCO-2223 compound is studied. A strong dependence of kinetic inductance with the variation of applied magnetic field is found at low temperature in the superconducting…

Superconductivity · Physics 2007-05-23 S. Sarangi , S. P. Chockalingam , S. V. Bhat

We demonstrate a straightforward approach to integrating a magnetic field into a low-temperature scanning tunneling microscope (STM) by adhering an NdFeB permanent magnet to a magnetizable sample plate. To render our magnet concept…

Future actively cooled space-borne observatories for the far-infrared, loosely defined as a 1--10 THz band, can potentially reach a sensitivity limited only by background radiation from the Universe. This will result in an increase in…

Instrumentation and Methods for Astrophysics · Physics 2022-09-07 J. J. A. Baselmans , F. Facchin , A. Pascual Laguna , J. Bueno , D. J. Thoen , V. Murugesan , N. Llombart , P. de Visser

We present noise measurements performed on a YBa$_2$Cu$_3$O$_{7-\delta}$ nanoscale weak-link-based magnetometer consisting of a Superconducting QUantum Interference Device (SQUID) galvanically coupled to a $3.5 \times 3.5~$mm$^2$ pick-up…

Capacitance measurements are crucial for probing the electrical properties of materials. In this study, we develop and implement a capacitance measurement technique optimized for pulsed magnetic fields. Our approach employs an…

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