Results 41 to 50 of about 13,786 (196)

Correlation between crystal structure and magnetism in PLD grown epitaxial films of ε-Fe2O3 on GaN

Science and Technology of Advanced Materials, 2021
In the present paper we discuss correlations between crystal structure and magnetic properties of epitaxial ε-Fe2O3 films grown on GaN. The large magnetocrystalline anisotropy and room temperature multiferroic properties of this exotic iron oxide ...
Sergey M. Suturin, Alexander M. Korovin, Alla A. Sitnikova, Demid A. Kirilenko, Mikhail P. Volkov, Polina A. Dvortsova, Victor A. Ukleev, Masao Tabuchi, Nikolai S. Sokolov   +8 more
doaj   +1 more source

On the validity of the 630 nm Fe I nm lines for the magnetometry of the internetwork quiet Sun

, 2006
The purpose of this work is to analyze the reliability of the magnetic field strengths inferred from the 630 nm pair of Fe I lines at internetwork quiet Sun regions.
B. Ruiz Cobo, Ballesteros, Beck, Bellot Rubio, Domínguez Cerdeña, Domínguez Cerdeña, Gingerich, Grossmann-Doerth, Howard, Keller, Khomenko, Lin, Lin, Lites, M. Collados, M. J. Martínez González, Manso Sainz, Ruiz Cobo, Ruiz Cobo, Shchukina, Sigwarth, Socas-Navarro, Socas-Navarro, Socas-Navarro, Stenflo, Sánchez Almeida, Sánchez Almeida, Trujillo Bueno, Westendorp Plaza   +28 more
core   +1 more source

Robust quantum parameter estimation: coherent magnetometry with feedback [PDF]

, 2003
We describe the formalism for optimally estimating and controlling both the state of a spin ensemble and a scalar magnetic field with information obtained from a continuous quantum limited measurement of the spin precession due to the field.
Doherty, Andrew C., Geremia, JM, Mabuchi, H., Stockton, John K.   +3 more
core   +3 more sources

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +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

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Uncovering the Mechanisms of Long-Range Magnetic Order in [Mn(mal)(H₂O)]_n: Insights from Microscopic and Macroscopic Magnetic Analysis

Magnetochemistry
In this study, we investigate the magnetic properties of the molecular compound [Mn(mal)(H2O)]ₙ (mal = dianion of malonic acid) by integrating microscopic and macroscopic characterization, combining unpolarized neutron diffraction and magnetometry ...
Fernando S. Delgado, Laura Cañadillas-Delgado, Juan Rodríguez-Carvajal, Óscar Fabelo, Jorge Pasán   +4 more
doaj   +1 more source

Pump-Enhanced Continuous-Wave Magnetometry using Nitrogen-Vacancy Ensembles [PDF]

, 2017
Ensembles of nitrogen-vacancy centers in diamond are a highly promising platform for high-sensitivity magnetometry, whose efficacy is often based on efficiently generating and monitoring magnetic-field dependent infrared fluorescence.
Ahmadi, Sepehr, Andersen, Ulrik L., El-Ella, Haitham A. R., Hansen, Jørn O. B., Huck, Alexander   +4 more
core   +2 more sources

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

Advanced Functional Materials, EarlyView.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog, Gloria Signorato, Birgit Hankiewicz, Volker Abetz   +3 more
wiley   +1 more source

Application of kernel principal component analysis for optical vector atomic magnetometry

Machine Learning: Science and Technology, 2023
Vector atomic magnetometers that incorporate electromagnetically induced transparency (EIT) allow for precision measurements of magnetic fields that are sensitive to the directionality of the observed field by virtue of fundamental physics.
James A McKelvy, Irina Novikova, Eugeniy E Mikhailov, Mario A Maldonado, Isaac Fan, Yang Li, Ying-Ju Wang, John Kitching, Andrey B Matsko   +8 more
doaj   +1 more source