Results 91 to 100 of about 26,270 (270)

Remote sensing of geomagnetic fields and atomic collisions in the mesosphere

Nature Communications, 2018
Remote sensing of geomagnetic fields in mesosphere is both challenging and interesting to explore the magnetic field structures and atomic collision processes.
Felipe Pedreros Bustos, Domenico Bonaccini Calia, Dmitry Budker, Mauro Centrone, Joschua Hellemeier, Paul Hickson, Ronald Holzlöhner, Simon Rochester   +7 more
doaj   +1 more source

A highly stable atomic vector magnetometer based on free spin precession

, 2015
We present a magnetometer based on optically pumped Cs atoms that measures the magnitude and direction of a 1 $\mu$T magnetic field. Multiple circularly polarized laser beams were used to probe the free spin precession of the Cs atoms.
Afach, S., Ban, G., Bison, G., Bodek, K., Chowdhuri, Z., Grujic, Z. D., Hayen, L., Helaine, V., Kasprzak, M., Kirch, K., Knowles, P., Koch, H. -C., Komposch, S., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Lemiere, Y., Mtchedlishvili, A., Naviliat-Cuncic, O., Piegsa, F. M., Prashanth, P. N., Quemener, G., Rawlik, M., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Severjins, N., Weis, A., Wursten, E., Wyszynski, G., Zejma, J., Zsigmond, G.   +33 more
core   +3 more sources

Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions

Advanced Materials, EarlyView.
ABSTRACT The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders.
Celia González‐Sánchez, Ignacio Sardinero, Jorge Cuadra, Alfredo Spuri, José A. Moreno, Hermann Suderow, Elke Scheer, Pablo Burset, Angelo Di Bernardo, Rubén Seoane Souto, Eduardo J. H. Lee   +10 more
wiley   +1 more source

Comprehensive analysis of the influence of magnetic field gradients on single-beam SERF atomic magnetometer

Results in Physics
Magnetic field gradients interfere with the coherence of the atomic ensemble and degrade the performance of the spin-exchange relaxation-free (SERF) atomic magnetometer.
Jiajie Li, Ying Liu, Renjie Li, Qian Cao, Tianwei Zhou, Yueyang Zhai   +5 more
doaj   +1 more source

Impact of aperture angle on magnetostatic shielding performances of magnetic shield cylinders

AIP Advances, 2022
The spin exchange relaxation free (SERF) atomic magnetometer plays an important role in ultrahigh sensitive magnetic measurements. With the improvement of signal response and the reduction of sensor noise, the sensitivity of the SERF atomic magnetometer ...
Lei Wang, Jing Zhu, Lianqing Zhu, Shuai Wang   +3 more
doaj   +1 more source

Quantum Enhanced Magnetometer with Low-Frequency Squeezing

, 2012
We report the demonstration of a magnetometer with noise-floor reduction below the shot-noise level. This magnetometer, based on a nonlinear magneto-optical rotation effect, is enhanced by the injection of a squeezed vacuum state into its input.
Dowling, Jonathan P., Horrom, Travis, Mikhailov, Eugeniy E., Singh, Robinjeet   +3 more
core   +1 more source

Ferromagnetism of Molecular Beam Epitaxy‐grown Ultra‐thin Cr2Ge2Te6 Films Down to the Monolayer Limit on Si Substrates

Advanced Materials, EarlyView.
Uniform monolayer Cr2Ge2Te6 films are achieved on Si substrates by molecular beam epitaxy. Intrinsic ferromagnetism with perpendicular magnetic anisotropy is established in the films by anomalous Hall effect and superconducting quantum interference device measurements, albeit with strong magnetic fluctuations characteristic of its 2D nature.
Pengfei Ji, Ruixuan Liu, Tianchen Zhu, Yang Chen, Yitian Tong, Jinxuan Liang, Yunhe Bai, Yunyi Zang, Zuhan Geng, Fangting Chen, Xiyu Hong, Jiatong Zhang, Luyi Yang, Qi‐Kun Xue, Ke He, Xiao Feng   +15 more
wiley   +1 more source

A Compact Laser Pumped ⁴He Magnetometer with Laser-Frequency Stabilization by Inhomogeneous Light Shifts

Applied Sciences, 2020
We propose a compact 4He magnetometer realizing magnetic field measurement and laser-frequency stabilization simultaneously in a single 4He atomic cell. The frequency stabilization scheme is based on the asymmetric line shape of magnetic resonance which ...
Haidong Wang, Teng Wu, He Wang, Sheng Li, Zaisheng Lin, Xiang Peng, Hong Guo   +6 more
doaj   +1 more source

Atomic magnetometers for materials characterization

Materials Today, 2011
Sensitive magnetometry has been established as a powerful technique for the characterization and testing of materials, with the most demanding applications relying on SQUID magnetometers operating at cryogenic temperatures. The recent development of compact, non-cryogenic atomic magnetometers with sub-femtotesla sensitivity and easy sample access has ...
Romalis, Michael V., Dang, Hoan B.
openaire   +1 more source

Direct Laser Writing of Magnetic Micro Actuators With a Stimulus‐Responsive Compliant Hinge

Advanced Materials Technologies, EarlyView.
This study presents a versatile modular design strategy for adaptive 3D microactuators. Using two‐photon‐induced C,H insertion reactions within solid polymer layers, chemically distinct hinge and stimulus responsive materials are patterned in one step. The hinge's properties enable tunable motion, mechanical control, and reconfigurable actuation across
Eleonora Galli, Nicolas Geid, Yizheng Liu, Friederike Strahl, Jürgen Rühe   +4 more
wiley   +1 more source