Results 31 to 40 of about 13,786 (196)

Torque magnetometry study of magnetically ordered state and spin reorientation in the quasi-one-dimensional $S=1/2$ Heisenberg antiferromagnet CuSb$_2$O$_6$

, 2015
We present an experimental study of macroscopic and microscopic magnetic anisotropy of a spin tetramer system \cso using torque magnetometry and ESR spectroscopy.
Berger, Helmuth, Herak, Mirta, Čalogović, Dubravka Matković, Žilić, Dijana   +3 more
core   +1 more source

Optimal waveform estimation for classical and quantum systems via time-symmetric smoothing. II. Applications to atomic magnetometry and Hardy's paradox

, 2009
The quantum smoothing theory [Tsang, Phys. Rev. Lett. 102, 250403 (2009); Phys. Rev. A, in press (e-print arXiv:0906.4133)] is extended to account for discrete jumps in the classical random process to be estimated, discrete variables in the quantum ...
Tsang, Mankei
core   +1 more source

Measuring the magnetic moment density in patterned ultrathin ferromagnets with submicron resolution [PDF]

, 2015
We present a new approach to infer the surface density of magnetic moments $I_s$ in ultrathin ferromagnetic films with perpendicular anisotropy. It relies on quantitative stray field measurements with an atomic-size magnetometer based on the nitrogen ...
Garcia, K., Hingant, T., Jacques, V., Martínez, L. J., Ravelosona, D., Roch, J. -F., Tetienne, J. -P.   +6 more
core   +2 more sources

Advancements in low Earth orbit satellite magnetic field measurements and global geomagnetic field modeling

地球与行星物理论评
Low Earth orbit (LEO) satellites have emerged as a primary tool for global geomagnetic field detection and model refinement, owing to their wide coverage, high resolution, and absence of geographical limitations.
Yanyan Yang, Jie Wang, Zhima Zeren, Xuhui Shen, Bin Zhou, Shigeng Yuan, Yuanqing Miao, Yue Xu   +7 more
doaj   +1 more source

Proposal for a Cosmic Axion Spin Precession Experiment (CASPEr)

Physical Review X, 2014
We propose an experiment to search for QCD axion and axionlike-particle dark matter. Nuclei that are interacting with the background axion dark matter acquire time-varying CP-odd nuclear moments such as an electric dipole moment.
Dmitry Budker, Peter W. Graham, Micah Ledbetter, Surjeet Rajendran, Alexander O. Sushkov   +4 more
doaj   +1 more source

Smooth optimal quantum control for robust solid state spin magnetometry

, 2014
Nitrogen-vacancy centers in diamond show great potential as magnetic, electric and thermal sensors which are naturally packaged in a bio-compatible material. In particular, NV-based magnetometers combine small sensor volumes with high sensitivities under
Angerer, Andreas, Bartels, Björn, Majer, Johannes, Mintert, Florian, Nöbauer, Tobias, Rotter, Stefan, Schmiedmayer, Jörg, Trupke, Michael   +7 more
core   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

Pre-existing structural control on the recent Holuhraun eruptions along the Bárðarbunga spreading center, Iceland

Scientific Reports
The active rift zones in Iceland provide unique insight into the geodynamic processes of divergent plate boundaries. The geodynamics of Iceland are studied intensively, particularly, by geophysical methods sensitive to active and/or visible structures ...
Arne Døssing, Mick Emil Kolster, Eduardo L. S. da Silva, Adrian R. Muxworthy, Jacob Thejll Petersen, Morten S. Riishuus   +5 more
doaj   +1 more source

Antiferromagnetic spin-coupling between MnII and amminium radical cation ligands: models for coordination polymer magnets [PDF]

, 2008
One and two electron oxidation of the manganese(II) complex [L2Mn(hfac)2] {L = 4'',4'''-di-tert-butyl-2',2'',2'''trimethoxy-{4-(4'-diphenylaminophenyl)pyridine} were studied by ultra violet/ visible/ near infra red spectroscopy, cyclic voltammetry and ...
Bushby, R.J., Kilner, C., Taylor, N., Williams, R.A.   +3 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source