Results 111 to 120 of about 26,270 (270)

Optical Magnetometer Array for Fetal Magnetocardiography

, 2012
We describe an array of spin-exchange relaxation free optical magnetometers designed for detection of fetal magnetocardiography (fMCG) signals. The individual magnetometers are configured with a small volume with intense optical pumping, surrounded by a ...
Bison, Budker, Chen, Happer, Hornberger, Johnson, Kligfield, Knappe, Kominis, Lancor, Li, Matthew Kauer, Pizzella, Robert Wyllie, Ronald T. Wakai, Thad G. Walker, Walker, Wyllie, Xia   +18 more
core   +1 more source

Electronic Resonance Network Stabilized Crystal Structure in High‐Nickel Cathodes for Lithium‐Ion Batteries

Carbon Energy, EarlyView.
Transition metal (TM) ions with empty eg orbitals induce single‐electron delocalization in Ni3+ to form the resonance structure of Ni─OO─TM through the high‐entropy effect. High‐nickel cathode materials with electron resonance structure have the advantages of improving thermodynamic stability, suppressing phase transitions, and mitigating lattice ...
Yi Li, Qinwen Cui, Jinpeng Li, Xingyu Li, Liang Yin, Erhong Song, Youwei Wang, Xiaolin Zhao, Jianjun Liu   +8 more
wiley   +1 more source

A method for measuring the direction of the geomagnetic field to correct of the onboard rubidium atomic clock frequency using an Mz-magnetometer

St. Petersburg Polytechnical University Journal: Physics and Mathematics
The article presents a method developed by the authors for measuring the direction of a magnetic field using an MZ-type quantum magnetometer, the readings of which are used to correct the frequency of an onboard small-sized rubidium atomic clock.
Ermak Sergey, Semenov Vladimir, Sergeeva Maria   +2 more
doaj   +1 more source

How do you know if you ran through a wall?

, 2012
Stable topological defects of light (pseudo)scalar fields can contribute to the Universe's dark energy and dark matter. Currently the combination of gravitational and cosmological constraints provides the best limits on such a possibility.
D. Budker, D. Budker, D. F. Jackson Kimball, M. P. Ledbetter, M. Pospelov, S. Pustelny, W. Gawlik   +6 more
core   +2 more sources

T½ Tuning in a Synergistic BODIPY‐Tetrazole Fe(II) Spin‐Crossover‐Photoluminescence System via Co‐Ligand Variation

Chemistry – A European Journal, EarlyView.
We report a modular spin crossover‐photoluminescence (SCO‐PL) system: heteroleptic, mononuclear Fe(II) coordination compounds bearing equatorial BODIPY fluorophores that exhibit synergistic PL response upon spin state switching. Exchanging apical nitrile co‐ligands tunes electronic and structural properties, giving precise control over the SCO and PL ...
Martin Huber, Matthias Schöbinger, Berthold Stöger, Michael Reissner, Peter Weinberger   +4 more
wiley   +1 more source

Spin-exchange relaxation free magnetometry with Cs vapor

, 2007
We describe a Cs atomic magnetometer operating in the spin-exchange relaxation-free (SERF) regime. With a vapor cell temperature of $103^\circ\rm{C}$ we achieve intrinsic magnetic resonance widths $\Delta B=17 {\rm \mu G}$ corresponding to an electron ...
D. Budker, E. W. McDaniel, I. M. Savukov, M. P. Ledbetter, M. V. Romalis, V. M. Acosta, W. A. Gardner   +6 more
core   +1 more source

Influence of Carboxylate Ligand Variation on Structure, Magnetic Exchange, and Magnetocaloric Performance in Hexanuclear Gd(III) Complexes

Chemistry – A European Journal, EarlyView.
ABSTRACT Hexanuclear cyclic Gd(III) coordination compounds are promising candidates for magnetic and magnetocaloric applications, yet systematic series remain rare due to synthetic challenges. We report the synthesis and characterization of five new complexes with the general formula [Gd(H3bt)(carboxylate)]6, employing four different carboxylate ...
Ondřej František Fellner, Kamil Kotrle, Erik Čižmár, Jana Brázdová, Pavel Štarha, Ján Moncoľ, Radovan Herchel, Ivan Nemec   +7 more
wiley   +1 more source

A Novel Asymmetrical Heating Method for Improving the Temperature Spatial Homogeneity of Vapor Cell in Atomic Magnetometer

IEEE Access, 2019
The atomic magnetometer in the application of simultaneous multichannel biomagnetic field measurement has gained increasing attention in recent researches.
Ji Zhang, Ming Ding, Yanhui Hu, Han Yao, Danyue Ma, Jiashu Cai, Jixi Lu, Bangcheng Han   +7 more
doaj   +1 more source

Ladder‐Like Structural Architecture of Layered Magnetic A2.4 Cr8Te14 (A = Rb, Cs) Compounds by Self‐Flux Synthesis

Chemistry – A European Journal, EarlyView.
A2.4Cr8Te14$A_{2.4}{\rm Cr}_{8}{\rm Te}_{14}$ (A = Rb, Cs) compounds exhibit a layered, ladder‐like Cr‐Te framework uniting structural motives of hollandite‐like and delafossite‐like phases. Alkali atoms are situated both in the interlayer space and tunnels within the Cr8Te14${\rm Cr}_{8}{\rm Te}_{14}$ framework.
Kai D. Röseler, Felix Eder, Fabian O. von Rohr   +2 more
wiley   +1 more source

Experimental study of 199Hg spin anti-relaxation coatings

, 2013
We report on a comparison of spin relaxation rates in a $^{199}$Hg magnetometer using different wall coatings. A compact mercury magnetometer was built for this purpose.
Chowdhuri, Z., Fertl, M., Horras, M., Kirch, K., Krempel, J., Lauss, B., Mtchedlishvili, A., Rebreyend, D., Roccia, S., Schmidt-Wellenburg, P., Zsigmond, G.   +10 more
core   +3 more sources