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Atom interferometry has become one of the most powerful technologies for precision measurements. To develop simple, precise, and versatile atom interferometers for inertial sensing, we demonstrate an atom interferometer measuring…

Atomic Physics · Physics 2018-02-13 Xuejian Wu , Fei Zi , Jordan Dudley , Ryan J. Bilotta , Philip Canoza , Holger Müller

Low-frequency magnetic fields carry vital information for neuroscience, navigation, and Earth science. However, they are generally weak, making it challenging to measure them with compact, room-temperature magnetometers. To overcome this…

Magnetic Resonance Imaging (MRI) can characterize and discriminate among tissues using their diverse physical and biochemical properties. Unfortunately, submicrometer screening of biological specimens is presently not possible, mainly due…

Mesoscale and Nanoscale Physics · Physics 2010-11-03 C. A. Meriles , L. Jiang , G. Goldstein , J. S. Hodges , J. R. Maze , M. D. Lukin , P. Cappellaro

Magnetoelectric (ME) magnetic field sensors commonly rely on one of the two modulation principles: the nonlinear dependence of magnetostrictive strain on the applied field or the stress-induced change in magnetization susceptibility. While…

Low-cost spintronic devices functioning in zero applied magnetic field are required for bringing the idea of spin-based electronics into the real-world industrial applications. Here we present first microwave measurements performed on…

Mesoscale and Nanoscale Physics · Physics 2008-11-17 A. Mourachkine , O. V. Yazyev , C. Ducati , J. -Ph. Ansermet

Nonreciprocal devices such as circulators and isolators belong to an important class of microwave components employed in applications like the measurement of mesoscopic circuits at cryogenic temperatures. The measurement protocols usually…

Mesoscale and Nanoscale Physics · Physics 2011-04-05 Archana Kamal , John Clarke , Michel Devoret

The experimental study of the modulation of the envelope of spin-echo signals due to internal and external fields is an important spectroscopic tool to detect very small internal magnetic fields. We derive the free induction decay and the…

Strongly Correlated Electrons · Physics 2015-06-18 Changtao Hou , D. E. MacLaughlin , C. M. Varma

We describe and operate a novel spin-magnetometer based on the phase modulation of cavity magnon polaritons. In this scheme a rf magnetic field is detected through the sidebands it induces on a pump, and the experimental configuration…

Instrumentation and Detectors · Physics 2022-03-07 Nicolò Crescini , Giovanni Carugno , Giuseppe Ruoso

Magnetoelastic composites are integral elements of sensors and actuators utilizing magnetostriction for their functionality. Their sensitivity typically scales with the saturation magnetostriction and inversely with magnetic anisotropy.…

Two dimensional square lattice general model of the magnetic dot array is introduced. In this model the intradot self-energy is predicted via the neural network and interdot magnetostatic coupling is approximated by the collection of…

Disordered Systems and Neural Networks · Physics 2009-11-07 Denis Horvath , Martin Gmitra , Ivo Vavra

An atomic magnetometer operated with elliptically polarized light is investigated theoretically and experimentally. To explore the potential of this magnetometric configuration, the analytical form of the outgoing signal is derived.…

Atomic Physics · Physics 2020-01-08 Shengran Su , Guoyi Zhang , Xin Bi , Xiang He , Wenqiang Zheng , Qiang Lin

We demonstrate the imaging of ferromagnetic carbon steel samples and we detect the thinning of their profile with a sensitivity of 0.1 mm using a Cs radio-frequency atomic magnetometer. Images are obtained at room temperature, in…

Instrumentation and Detectors · Physics 2018-08-10 Patrick Bevington , Rafal Gartman , Witold Chalupczak , Cameron Deans , Luca Marmugi , Ferruccio Renzoni

In a recent publication [arXiv:2010.14579], we introduced a new type of atomic magnetometer, which relies on hydrohalide photo-dissociation to create high-density spin-polarized hydrogen. Here, we extend our previous work and present a…

A Hall magnetometer with variable sensitivity is constructed to measure the magnetic properties of magnetic nanoparticles manufactured by different methods. This novel magnetometer can also be used to measure bulk materials and samples in…

We investigate the magnetization dynamics of a conducting magnetic nanoparticle weakly coupled to source and drain electrodes, under the assumption that all relaxation comes from exchange of electrons with the electrodes. The magnetization…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Xavier Waintal , Piet W. Brouwer

We study the spin-phonon relaxation rate of both Kramers and non-Kramers molecular magnets in strongly diluted samples at low temperature. Using the "rotational" contribution to the spin-phonon Hamiltonian, universal formulae for the…

Strongly Correlated Electrons · Physics 2018-01-31 Le Tuan Anh Ho , Liviu F. Chibotaru

Noise properties of an idealized atomic magnetometer that utilizes spin squeezing induced by a continuous quantum nondemolition measurement are considered. Such a magnetometer measures spin precession of $N$ atomic spins by detecting…

We demonstrate an all-optical $^{133}$Cs scalar magnetometer, operating in nonzero magnetic field,in which the magnetic resonance is driven by an effective oscillating magnetic field provided by the AC Stark shift of an intensity-modulated…

Atomic Physics · Physics 2014-09-29 Elena Zhivun , Arne Wickenbrock , Brian Patton , Dmitry Budker

We propose a new type of magnetoelectric memory device that stores magnetic easy-axis information or pseudo-magnetization, rather than a definite magnetization direction, in piezoelectric/ferromagnetic (PE/FM) heterostructures.…

Applied Physics · Physics 2023-07-20 Tingting Shen , Orchi Hassan , Neil R. Dilley , Kerem Y. Camsari , Joerg Appenzeller

We describe magnetic field sensor based on spin wave interferometer. Its sensing element consists of a magnetic cross junction with four micro-antennas fabricated at the edges. Two of these antennas are used for spin wave excitation and two…

Other Condensed Matter · Physics 2016-11-28 M. Balynsky , D. Gutierrez , H. Chiang , A. Kozhevnikov , Y. Filimonov , A. A. Balandin , A. Khitun