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Related papers: Multi-parameter study of two-axis Hanle magnetomet…

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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…

Crossed magnetic field effects on bulk high-temperature superconductors have been studied both experimentally and numerically. The sample geometry investigated involves finite-size effects along both (crossed) magnetic field directions. The…

The splitting of magnetic resonance induced by a linearly polarized frequency comb is presented for Hanle experimental configuration. The experiment is carried out with thermal Rubidium atoms in an anti-relaxation coated glass cell. The…

Atomic Physics · Physics 2022-02-01 Rita Behera , Swarupananda Pradhan

Spin transfer from circularly polarized real photons to recoiling hyperons has been measured for the reactions $\vec\gamma + p \to K^+ + \vec\Lambda$ and $\vec\gamma + p \to K^+ + \vec\Sigma^0$. The data were obtained using the CLAS…

Nuclear Experiment · Physics 2010-04-06 R. Bradford , R. A. Schumacher , CLAS Collaboration

Decoupling of total electronic and nuclear spin moments of Cs atoms in external magnetic field for the case of atomic $D_1$ line, leading to onset of the hyperfine Paschen-Back regime has been studied theoretically and experimentally.…

We describe our approach to atomic magnetometry based on the push-pull optical pumping technique. Cesium vapor is pumped and probed by a resonant laser beam whose circular polarization is modulated synchronously with the spin evolution…

Atomic Physics · Physics 2015-06-18 E. Breschi , Z. D. Grujic , P. Knowles , A. Weis

The fluorescence spectra of a sub-micron atomic cesium vapor layer observable under resonant excitation on D2 line have been studied in the presence of an external magnetic field. Substantial changes in amplitudes and frequency positions of…

Atomic Physics · Physics 2007-05-23 Aram Papoyan , David Sarkisyan , Kaspars Blush , Marcis Auzinsh , Daniel Bloch , Martial Ducloy

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…

This is a theoretical investigation on the formation of the linearly polarized line spectrum of ionized cerium in the sun. We calculate the scattering line polarization pattern emergent from a plane-parallel layer of Ce {\sc ii} atoms…

Astrophysics · Physics 2009-11-11 R. Manso Sainz , E. Landi Degl'Innocenti , J. Trujillo Bueno

Developing a non-invasive, accurate vector magnetometer that operates at ambient temperature and is conducive to miniaturization and is self-calibrating is a significant challenge. Here, we present an unshielded three-axis vector…

The response of a graphene Hall-Effect sensor to the inhomogeneous magnetic field generated by a dipole located above it, is investigated numerically at room temperature as a function of the dipole position, its orientation and the…

Mesoscale and Nanoscale Physics · Physics 2024-10-07 Lionel Petit , Thomas Blon , Benjamin Lassagne

The physics of the solar chromosphere depends in a crucial way on its magnetic structure. However there are presently very few direct magnetic field diagnostics available for this region. Here we investigate the diagnostic potential of the…

Astrophysics · Physics 2009-11-13 M. Faurobert , M. Derouich , V. Bommier , J. Arnaud

Several optical experiments have shown that in magnetic materials the principal axes of response tensors can rotate in a magnetic field. Here we offer a microscopic explanation of this effect, and propose a closely related DC transport…

Mesoscale and Nanoscale Physics · Physics 2025-11-21 Veronika Sunko , Chunxiao Liu , Marc Vila , Ilyoun Na , Yuchen Tang , Vladyslav Kozii , Sinéad M. Griffin , Joel E. Moore , Joseph Orenstein

We present a theory for the estimation of a scalar or a vector magnetic field by its influence on an ensemble of trapped spin polarized atoms. The atoms interact off-resonantly with a continuous laser field, and the measurement of the…

Quantum Physics · Physics 2009-11-10 Vivi Petersen , Lars Bojer Madsen , Klaus Molmer

This paper addresses the problem of scattering line polarization and the Hanle effect in one-dimensional (1D), two-dimensional (2D) and three-dimensional (3D) media for the case of a two-level model atom without lower-level polarization and…

Astrophysics · Physics 2016-01-27 R. Manso Sainz , J. Trujillo Bueno

A magnetic measurement of the bar shaped test specimen placed inside the planar sensor is presented. A magnetic material characterization approach using planar cavity is proposed in this work. The proposed planar sensor relaxes the main…

Signal Processing · Electrical Eng. & Systems 2019-06-26 Nilesh K Tiwari , A K Jha , S P Singh , M Jaleel Akhtar

Optically pumped magnetometers are ultra-sensitive devices, but this sensitivity can significantly degrade due to heading errors, whereby a change in the angle between the pumping laser and the magnetic field translates to a change in the…

Applied Physics · Physics 2023-08-07 Yossi Rosenzweig , Dmitriy Tokar , Igor Shcerback , Menachem Givon , Ron Folman

A Lamb-shift polarimeter, which has been built for a fast determination of the polarization of protons and deuterons of an atomic-beam source and which is frequently used in the ANKE experiment at COSY-J\"ulich, is shown to be an excellent…

Sensing static or slowly varying magnetic fields with high sensitivity and spatial resolution is critical to many applications in fundamental physics, bioimaging and materials science. Several versatile magnetometry platforms have emerged…

Quantum Physics · Physics 2021-04-07 A. Ajoy , Y. X. Liu , P. Cappellaro

We have analytically studied plasmons in an electron system comprised of two spatially separated layers -- an infinite two-dimensional electron system (2DES) and a 2D strip. Our analysis reveals the existence of plasmon modes that are…

Mesoscale and Nanoscale Physics · Physics 2020-10-14 A. A. Zabolotnykh , V. A. Volkov
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