scholarly journals Tunable magnetic vortex resonance in a potential well

2017 ◽  
Vol 96 (17) ◽  
Author(s):  
P. Warnicke ◽  
P. Wohlhüter ◽  
A. K. Suszka ◽  
S. E. Stevenson ◽  
L. J. Heyderman ◽  
...  
Keyword(s):  
Magnetic Vortex ◽  
Potential Well

scholarly journals Direct imaging of current induced magnetic vortex gyration in an asymmetric potential well

2010 ◽  
Vol 96 (15) ◽  
pp. 152506 ◽  
Author(s):  
Andre Bisig ◽  
Jan Rhensius ◽  
Matthias Kammerer ◽  
Michael Curcic ◽  
Hermann Stoll ◽  
...  
Keyword(s):  
Magnetic Vortex ◽  
Potential Well ◽  
Direct Imaging

scholarly journals Probing the Anharmonicity of the Potential Well for a Magnetic Vortex Core in a Nanodot

2013 ◽  
Vol 111 (24) ◽  
Author(s):  
O. V. Sukhostavets ◽  
B. Pigeau ◽  
S. Sangiao ◽  
G. de Loubens ◽  
V. V. Naletov ◽  
...  
Keyword(s):  
Vortex Core ◽  
Magnetic Vortex ◽  
Potential Well

GIANT RESONANCES IN A POTENTIAL WELL : A SEMICLASSICAL DESCRIPTION

1987 ◽  
Vol 48 (C2) ◽  
pp. C2-19-C2-26
Author(s):  
X. VIÑAS ◽  
A. GUIRAO
Keyword(s):  
Potential Well ◽  
Giant Resonances

Tuning the Magnetic Vortex State in Magnetite Nanodiscs for Remote Control of Biological Signalling

2019 ◽  
Author(s):  
Danijela Gregurec ◽  
Alexander W. Senko ◽  
Andrey Chuvilin ◽  
Pooja Reddy ◽  
Ashwin Sankararaman ◽  
...  
Keyword(s):  
Remote Control ◽  
Ion Channels ◽  
Ground State ◽  
Magnetic Particles ◽  
Colloidal Stability ◽  
Vortex State ◽  
Magnetic Vortex ◽  
Electron Holography ◽  
Dipole Interactions ◽  
Magnetite Particles

In this work, we demonstrate the application of anisotropic magnetite nanodiscs (MNDs) as transducers of torque to mechanosensory cells under weak, slowly varying magnetic fields (MFs). These MNDs possess a ground state vortex configuration of magnetic spins which affords greater colloidal stability due to eliminated dipole-dipole interactions characteristic of isotropic magnetic particles of similar size. We first predict vortex magnetization using micromagnetic stimulations in sub-micron anisotropic magnetite particles and then use electron holography to experimentally investigate the magnetization of MNDs 98–226 nm in diameter. When MNDs are coupled to MFs, they transition between vortex and in-plane magnetization allowing for the exertion of the torque on the pN scale, which is sufficient to activate mechanosensitive ion channels in cell membranes.<br>

The possibility of a kind of Bose particle to obtain high energy and superradiance

2020 ◽  
Author(s):  
Wen-Xiang Chen
Keyword(s):  
High Energy ◽  
Potential Well ◽  
Maximum Value

When \Delta x \Delta p &lt; \hbar / 2 happens at the same time when the entropy reaches its maximum value, the boson will condense, and if there is a potential well but it does not explode, then the boson will gain high energy (more than normal).This article is to illustrate the possibility of a kind of Bose particle to obtain high energy.

Interaction of a Magnetic Vortex with Magnetic Anisotropy Nonuniformity

2020 ◽  
Vol 131 (4) ◽  
pp. 589-599
Author(s):  
V. A. Orlov ◽  
G. S. Patrin ◽  
I. N. Orlova
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Vortex

Quantum Tunneling

2017 ◽  
Author(s):  
Frank S. Levin
Keyword(s):  
Quantum Tunneling ◽  
Alpha Particles ◽  
Attractive Potential ◽  
Scanning Tunneling ◽  
Finite Width ◽  
Potential Well ◽  
Surface Molecules ◽  
Repulsive Coulomb ◽  
The Subject ◽  
The One

Quantum tunneling, wherein a quanject has a non-zero probability of tunneling into and then exiting a barrier of finite width and height, is the subject of Chapter 13. The description for the one-dimensional case is extended to the barrier being inverted, which forms an attractive potential well. The first application of this analysis is to the emission of alpha particles from the decay of radioactive nuclei, where the alpha-nucleus attraction is modeled by a potential well and the barrier is the repulsive Coulomb potential. Excellent results are obtained. Ditto for the similar analysis of proton burning in stars and yet a different analysis that explains tunneling through a Josephson junction, the connector between two superconductors. The final application is to the scanning tunneling microscope, a device that allows the microscopic surfaces of solids to be mapped via electrons from the surface molecules tunneling into the tip of the STM probe.

Sign in / Sign up

Export Citation Format

Share Document