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State-of-the-art magnetic field measurements performed in shielded environments with carefully controlled conditions rarely reflect the realities of those applications envisioned in the introductions of peer-reviewed publications.…

Atomic Physics · Physics 2020-10-13 Kai-Mei C. Fu , Geoffrey Z. Iwata , Arne Wickenbrock , Dmitry Budker

We report on the design and performance of a highly sensitive combined $^3$He/Cs magnetometer for the absolute measurement of magnetic fields. The magnetometer relies on the magnetometric detection of the free spin precession of nuclear…

Quantum metrology utilizes entanglement for improving the sensitivity of measurements. Up to now the focus has been on the measurement of just one out of two non-commuting observables. Here we demonstrate a laser interferometer that…

Magnetic fields play a fundamental role in protostellar collapse and disk formation, yet direct measurements of magnetic field strength in deeply embedded protostellar envelopes remain difficult. We present a new method to estimate both the…

Earth and Planetary Astrophysics · Physics 2026-03-24 Yisheng Tu , Xiaoyuan Yang , Zhi-Yun Li

A high-speed 100 MHz strain monitor using a fiber Bragg grating, an optical filter, and a mode-locked optical fiber laser has been devised, which has a resolution of $\Delta L/L\sim10^{-4}$. The strain monitor is sufficiently fast and…

Capacitance measurements from cyclic voltammetry, galvanostatic chronopotentiometry and calculation of capacitance from imaginary part of impedance are widely used in investigations of supercapacitors. The methods assume the supercapacitor…

Materials Science · Physics 2016-04-28 G. A. Ragoisha , Y. M. Aniskevich

Magnetic force microscopy (MFM) measurements generally provide phase images which represent the signature of domain structures on the surface of nanomaterials. To quantitatively determine magnetic stray fields based on an MFM image requires…

Data Analysis, Statistics and Probability · Physics 2020-02-20 Xiukun Hu , Gaoliang Dai , Sibylle Sievers , Alexander Fernández Scarioni , Volker Neu , Mark Bieler , Hans Werner Schumacher

In this paper, we present our approach to systematically measure numerous performance parameters of MCP-PMTs. The experimental setups, the analyses and selected results are discussed. Although the techniques used may be different in other…

Instrumentation and Detectors · Physics 2024-07-08 A. Lehmann , M. Böhm , M. Götz , K. Gumbert , S. Krauss , D. Miehling , M. Pfaffinger

We carry out an experimental feasibility study of a magnetic field sensor based on the kinetic inductance of the high-$T_\mathrm{c}$ superconductor yttrium barium copper oxide. We pattern thin superconducting films into radio-frequency…

Instrumentation and Detectors · Physics 2019-04-17 V. Vesterinen , S. Ruffieux , A. Kalabukhov , H. Sipola , M. Kiviranta , D. Winkler , J. F. Schneiderman , J. Hassel

In this paper we address a series of open questions about the construction of spatially coupled measurement matrices in compressed sensing. For hardware implementations one is forced to depart from the limiting regime of parameters in which…

Information Theory · Computer Science 2014-01-27 Francesco Caltagirone , Lenka Zdeborová

Self-compensated comagnetometers, employing overlapping samples of spin-polarized alkali and noble gases (for example K-$^3$He) are promising sensors for exotic beyond-the-standard-model fields and high-precision metrology such as rotation…

The method consists in the monitoring of the temperature variation of a superconductor tape subjected to a trapezoidal current pulse. Simulations of the experiment were performed using the lumped capacitance model and also the finite…

Superconductivity · Physics 2007-05-23 Benoit des Ligneris Marcel Aubin Julian Cave

We review here different methods to measure the bulk viscosity of complex fluids using micron-sized magnetic wires. The wires are characterized by length of a few microns and diameter of a few hundreds of nanometers. We first draw analogies…

Soft Condensed Matter · Physics 2021-09-27 Jean-Francois Berret

A new method to measure the superconducting stiffness tensor $\overline{\rho}_s$, without subjecting the sample to magnetic field, is applied to La$_{1.875}$Sr$_{0.125}$CuO$_4$ (LSCO). The method is based on the London equation…

Superconductivity · Physics 2019-06-20 Itzik Kapon , Zaher Salman , Thomas Prokscha , Nir Gavish , Amit Keren

By tuning superconductivity with an applied magnetic field, we use neutrons to compare the magnetic ordered phases in superconducting and normal states of CeCo$_{0.5}$Rh$_{0.5}$In$_{5}$. At zero field, CeCo$_{0.5}$Rh$_{0.5}$In$_{5}$…

Strongly Correlated Electrons · Physics 2025-03-04 A. Howell , M. Songvilay , J. A. Rodriguez-Rivera , Ch. Niedermayer , Z. Husges , P. Manuel , S. Saha , C. Eckberg , J. Paglione , C. Stock

Measurement of gravitomagnetic field is of fundamental importance as a test of general relativity. Here we present a new theoretical project for performing such a measurement based on detection of the electric field arising from the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 B. J. Ahmedov , N. I. Rakhmatov

In this review, we describe the potentialities offered by the nuclear magnetic resonance (NMR) technique to explore at a microscopic level new quantum states of condensed matter induced by high magnetic fields. We focus on experiments…

Strongly Correlated Electrons · Physics 2017-11-30 Claude Berthier , Mladen Horvatić , Marc-Henri Julien , Hadrien Mayaffre , Steffen Krämer

A scalable mapping system for superconducting RF cavities is presented. Currently, it combines local temperature measurement with 3D magnetic field mapping along the outer surface of the resonator. This allows for the observation of dynamic…

Instrumentation and Detectors · Physics 2018-05-23 B. Schmitz , J. Köszegi , K. Alomari , O. Kugeler , J. Knobloch

We have designed and developed a new experimental setup, based on the 3-omega method, to measure thermal conductivity, heat capacity and electrical resistivity of a variety of samples in a broad temperature range (2-550 K) and under…

Instrumentation and Detectors · Physics 2018-04-17 K. Shrestha , K. Gofryk

We report on a new high resolution apparatus for measuring magnetostriction suitable for use at cryogenic temperatures in pulsed high magnetic fields which we have developed at the Hochfeld-Magnetlabor Dresden. Optical fibre strain gauges…

Other Condensed Matter · Physics 2010-06-08 Ramzy Daou , Franziska Weickert , Michael Nicklas , Frank Steglich , Ariane Haase , Mathias Doerr