Results 71 to 80 of about 34,359 (225)

Squeezed-Light Optical Magnetometry [PDF]

Physical Review Letters, 2010
We demonstrate a light-shot-noise-limited magnetometer based on the Faraday effect in a hot unpolarized ensemble of rubidium atoms. By using off-resonant, polarization-squeezed probe light, we improve the sensitivity of the magnetometer by 3.2 dB. The technique could improve the sensitivity of the most advanced magnetometers and quantum nondemolition ...
Wolfgramm, Florian, Cere, Alessandro, Beduini, Federica A., Predojevic, Ana, Koschorreck, Marco, Mitchell, Morgan W.   +5 more
openaire   +3 more sources

Magnetic and Structural Response Tuned by Coexisting Mn Concentration‐Dependent Phases in MnBi2Te4 Thin Film Grown on GaAs(001) by Molecular Beam Epitaxy

Advanced Functional Materials, EarlyView.
The study explores structural and magnetic properties of one of the most recent topological quantum materials (MnBi2Te4). The Mn‐poor structure leads to stacking faults (quintuple layer ‐ QL of Bi2Te3 formation instead of a septuple layer ‐ SL of MnBi2Te4), resulting in a coexistence between weak antiferromagnetism and ferromagnetism.
Wesley F. Inoch, Sergio L. A. Mello, Gilberto Rodrigues‐Junior, Sukarno O. Ferreira, Marcelo M. Sant'Anna, Benjamin R. Salles, Mateus T. Souza, Sérgio L. Morelhão, Maybi F. Sampaio, Bráulio S. Archanjo, Leonarde N. Rodrigues   +10 more
wiley   +1 more source

Compact and Fully Integrated LED Quantum Sensor Based on NV Centers in Diamond

Sensors
Quantum magnetometry based on optically detected magnetic resonance (ODMR) of nitrogen vacancy centers in diamond nano or microcrystals is a promising technology for sensitive, integrated magnetic-field sensors.
Jens Pogorzelski, Ludwig Horsthemke, Jonas Homrighausen, Dennis Stiegekötter, Markus Gregor, Peter Glösekötter   +5 more
doaj   +1 more source

Nanotorsional resonator torque magnetometry [PDF]

Applied Physics Letters, 2010
8 pages preprint, 4 figures, accepted to Appl.
Davis, J. P., Vick, D., Fortin, D. C., Burgess, J. A. J., Hiebert, W. K., Freeman, M. R.   +5 more
openaire   +2 more sources

Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal

Advanced Functional Materials, EarlyView.
Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland, John Fullerton, PeiYu Cai, Rabindra Basnet, Santosh Karki Chhetri, Jin Hu, Elton J. G. Santos, Yue Li, Charudatta Phatak, Amanda Petford‐Long   +9 more
wiley   +1 more source

Toxicity and magnetometry evaluation of the uptake of core-shell maghemite-silica nanoparticles by neuroblastoma cells

Royal Society Open Science
Nanoparticle uptake by cells is a key parameter in their performance in biomedical applications. However, the use of quantitative, non-destructive techniques to obtain the amount of nanoparticles internalized by cells is still uncommon.
Raúl López-Martín, Nieves Aranda-Sobrino, Nerea De Enciso-Campos, Elena H. Sánchez, Gregorio Castañeda-Peñalvo, Su Seong Lee, Chris Binns, Inmaculada Ballesteros-Yáñez, Jose A. De Toro, Carlos A. Castillo-Sarmiento   +9 more
doaj   +1 more source

A Single Infusion of Polyethylene Glycol-Coated Superparamagnetic Magnetite Nanoparticles Alters Differently the Expressions of Genes Involved in Iron Metabolism in the Liver and Heart of Rats

Pharmaceutics, 2023
This study investigated genotype- and tissue-related differences in the biodistribution of superparamagnetic magnetite (Fe3O4) nanoparticles (IONs) into the heart and liver of normotensive Wistar Kyoto (WKY) and spontaneously hypertensive (SHR) rats ...
Michal Kluknavsky, Andrea Micurova, Martin Skratek, Peter Balis, Monika Okuliarova, Jan Manka, Iveta Bernatova   +6 more
doaj   +1 more source

Operando Temperature Sensing at the Actual Electrocatalytic Interface by Nanodiamond Quantum Sensors

Advanced Functional Materials, EarlyView.
By integrating a wide‐field microscope with a custom‐designed electrolyzer, nanoscale temperature changes can be recorded in situ during the electrolysis process without interfering with ongoing electrochemical reactions. This method establishes a correlation between the interface temperature and specific electrochemical reactions, making the measured ...
Zan Li, Hui Wang, Mingzhong Ai, Yao Gao, Xinyi Feng, Junchen Ye, Ying Wang, Quan Li   +7 more
wiley   +1 more source

Two Small Volcanoes, One Inside the Other: Geophysical and Drilling Investigation of Bažina Maar in Western Eger Rift

Earth and Space Science, 2023
Maar‐diatreme volcanoes are small volcanic structures with a funnel‐shaped crater surrounded by a tephra‐ring. They are usually formed by the explosive phreatomagmatic eruptions when groundwater comes into the contact with magma.
Pavla Hrubcová, Tomáš Fischer, Vladislav Rapprich, Jan Valenta, Petr Tábořík, Jan Mrlina, Torsten Dahm, Tomáš Vylita, Roman Beránek, Radek Klanica, Josef Vlček, Veronika Turjaková   +11 more
doaj   +1 more source

High-sensitivity diamond magnetometer with nanoscale resolution

, 2008
We present a novel approach to the detection of weak magnetic fields that takes advantage of recently developed techniques for the coherent control of solid-state electron spin quantum bits.
A. Yacoby, AM Chang, AM Rey, BM Chernobrod, C Veauvy, CA Meriles, CL Degen, CP Slichter, D Budker, D Budker, D. Budker, DE Chang, E van Oort, F Jelezko, F Jelezko, FT Charnock, GR Khutsishvili, H Seton, HJ Mamin, HJ Mamin, IM Savukov, J Meijer, J. M. Taylor, JF Prins, JR Rabeau, K Khodjasteh, K Kominis, K Schlenga, KF Zhao, KM Salikhov, L Childress, L Viola, L. Childress, L. Jiang, M Auzinsh, M Mehring, M Vengalattore, M. D. Lukin, MVG Dutt, NB Manson, P Mansfield, P. Cappellaro, P. R. Hemmer, R Hanson, R Hanson, R. Walsworth, RJ Epstein, S Kühn, S Meiboom, SJ Bending, SK Sekatskii, T Gaebel   +51 more
core   +1 more source