Journal ArticleDOI
Advances in Magnetic Field Sensors
Pavel Ripka,Michal Janosek +1 more
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TLDR
The most important milestone in the field of magnetic sensors was when AMR sensors started to replace Hall sensors in many applications where the greater sensitivity of AMRs was an advantage as mentioned in this paper.Abstract:
The most important milestone in the field of magnetic sensors was when AMR sensors started to replace Hall sensors in many applications where the greater sensitivity of AMRs was an advantage. GMR and SDT sensors finally found applications. We also review the development of miniaturization of fluxgate sensors and refer briefly to SQUIDs, resonant sensors, GMIs, and magnetomechanical sensors.read more
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I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Journal ArticleDOI
Subpicotesla Diamond Magnetometry
Thomas Wolf,Philipp Neumann,Kazuo Nakamura,Hitoshi Sumiya,Takeshi Ohshima,Junichi Isoya,Jörg Wrachtrup +6 more
TL;DR: In this paper, solid-state spins in diamond were used to demonstrate the measurement of magnetic fields as small as 100 fT in a tiny sensor volume, and the results showed that magnetic fields play roles in a variety of scientific and medical applications.
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A subpicotesla diamond magnetometer
TL;DR: In this article, the authors used an ensemble of 1e11 defect centers for sensing and achieved a photon shot noise limited field sensitivity of 0.9 pT/Hz^(1/2) at room temperature with an effective sensor volume of 8.5e-4 mm^3.
Journal ArticleDOI
Cavity optomechanical magnetometer.
Stefan Forstner,Stefan Forstner,S. Prams,Joachim Knittel,E. D. van Ooijen,Jon D. Swaim,Glen I. Harris,A. Szorkovszky,Warwick P. Bowen,Halina Rubinsztein-Dunlop +9 more
TL;DR: A cavity optomechanical magnetometer is demonstrated that combines high sensitivity and large dynamic range with small size and room temperature operation.
Journal ArticleDOI
Introduction to spin wave computing
Abdulqader Mahmoud,Florin Ciubotaru,Frederic Vanderveken,Andrii V. Chumak,Said Hamdioui,Christoph Adelmann,Sorin Cotofana +6 more
TL;DR: In this paper, the authors provide a tutorial overview of recent efforts to develop computing systems based on spin waves instead of charges and voltages, and discuss the current status and challenges to combine spin-wave gates and obtain circuits and ultimately computing systems, considering essential aspects such as gate interconnection, logic level restoration, input output consistency, and fan-out achievement.
References
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Journal ArticleDOI
I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Journal ArticleDOI
Optical magnetometry - eScholarship
Dmitry Budker,Michael Romalis +1 more
TL;DR: In this article, the basic principles of modern optical magnetometers, discuss fundamental limitations on their performance, and describe recently explored applications for dynamical measurements of biomagnetic fields, detecting signals in NMR and MRI, inertial rotation sensing, magnetic microscopy with cold atoms, and tests of fundamental symmetries of nature.
Journal ArticleDOI
Induction coil sensors—a review
TL;DR: In this paper, the design methods for coils with air and ferromagnetic cores are compared and summarized, and the frequency properties of coil sensors are analyzed and various methods for output signal processing are presented, such as Rogowski coil, gradiometer sensors, vibrating coil sensors, tangential field sensors and needle probes.