EFFECT OF MAGNETIC FIELD ON THE MAGNETIC STATE OF COPPER METABORATE

2006 ◽  
pp. 49-65
Author(s):  
G. Petrakovskii ◽  
M. Popov ◽  
V. Zinenko ◽  
B. Roessli ◽  
J. Schefer ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic State

Magnetic Nanoparticles Arrays for Quantum Calculations

2013 ◽  
Vol 718-720 ◽  
pp. 102-106
Author(s):  
Konstantin Nefedev ◽  
Vitalii Kapitan ◽  
Yuriy Shevchenko
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Quantum Computer ◽  
Magnetic State ◽  
Quantum Superposition ◽  
Magnetostatic Field ◽  
Magnetic Dipoles ◽  
Ordered Array ◽  
Quantum Phenomena ◽  
Magnetic States

In frames of a quantum computer implementation, the ordered array of magnetic dipoles nanoparticles is considered. The phase space calculated for system of dipoles, which interact through long-range magnetostatic field. The behavior of nanoarchitectures in an external magnetic field is studied. The degeneracy of the equilibrium magnetic states depending on the value of an external magnetic field and the spin excess of configurations are determined. The presence of degeneration is a classical analog of quantum superposition, and distribution of probability of magnetic state is a classical representation of such quantum phenomena as entanglement.

scholarly journals The electric and magnetic state of the interior of the earth, as inferred from terrestrial magnetic variations

1930 ◽  
Vol 229 (670-680) ◽  
pp. 427-460 ◽  
Keyword(s):  
Magnetic Field ◽  
Harmonic Analysis ◽  
Spherical Harmonic ◽  
Major Part ◽  
Inner Core ◽  
Magnetic State ◽  
Spherical Harmonic Analysis ◽  
Conducting Sphere ◽  
The Earth ◽  
Magnetic Variation

1.1. By spherical harmonic analysis it is possible, as was shown by GAUSS, to distinguish between the parts of the earth’s magnetic field, at any time, which originate respectively within and above the earth’s surface. In this way GAUSS confirmed and extended GILBERT’s conclusion that the field is almost entirely of internal origin. 1.2. Sir ARTHUR SCHUSTER applied the method to the field of the daily magnetic variation at the earth’s surface, and found that the major part is of external origin, but that there is also a part produced within the earth. He attributed the latter to electric currents induced in the earth by the outer varying field, which he regarded as primary. In co-operation with Prof. H. LAMB he showed that the relation between the two parts of the field is consistent with this hypothesis ; the calculations referred to currents induced in a uniformly conducting sphere. They showed that the conducting sphere must be distinctly smaller than the earth, that is, it is an inner core, and not the whole earth, which is effective.

scholarly journals Controllable two- vs three-state magnetization switching in single-layer epitaxial Pd1-xFex films and epitaxial Pd0.92Fe0.08/Ag/Pd0.96Fe0.04 heterostructure

2021 ◽  
Author(s):  
Igor Yanilkin ◽  
Amir Gumarov ◽  
Gulnaz Gizzatullina ◽  
Roman Yusupov ◽  
Lenar Tagirov
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
Applied Magnetic Field ◽  
Magnetization Reversal ◽  
Easy Axis ◽  
Magnetic State ◽  
Magnetic Moments ◽  
Single Layer ◽  
Wide Range ◽  
Ferromagnetic Layers

We have investigated the low-temperature magnetoresistive properties of a thin epitaxial Pd0.92Fe0.08 film at different directions of the current and the applied magnetic field. The obtained experimental results are well described within an assumption of a single-domain magnetic state of the film. In a wide range of the appled field directions, the magnetization reversal proceeds in two steps via the intermediate easy axis. An epitaxial heterostructure of two magnetically separated ferromagnetic layers, Pd0.92Fe0.08/Ag/Pd0.96Fe0.04, was synthesized and studied with the dc magnetometry. Its magnetic configuration diagram has been constructed and the conditions have been determined for a controllable switching between stable parallel, orthogonal, and antiparallel arrangements of magnetic moments of the layers.

Optical Second Harmonic Generation in Nanostructures with Inhomogeneous Magnetization

2015 ◽  
Vol 233-234 ◽  
pp. 595-598
Author(s):  
Irina A. Kolmychek ◽  
Victor L. Krutyanskiy ◽  
Tatyana Murzina ◽  
Evgeniy A. Karashtin ◽  
Maxim V. Sapozhnikov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Second Harmonic Generation ◽  
Phase Formation ◽  
Harmonic Generation ◽  
Magnetic State ◽  
Second Harmonic ◽  
Magnetic Nanostructures ◽  
Ferromagnetic Phase ◽  
Optical Second Harmonic Generation ◽  
Inhomogeneous Magnetization

The effects of inhomogeneous magnetization on optical second harmonic generation from magnetic nanostructures are studied. Cobalt triangular-shaped nanoparticles with vortex magnetization and magnetic trilayers that support the ferromagnetic phase formation are considered. We show that magnetic field dependencies of the SHG intensity for both types of structures reveal a number of distinct peculiarities associated with additional SHG mechanisms attributed to inhomogeneous magnetic state of the nanostructures.

scholarly journals Skyrmion Formation in Nanodisks Using Magnetic Force Microscopy Tip

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2627
Author(s):  
Mateusz Zelent ◽  
Iuliia V. Vetrova ◽  
Jan Šoltýs ◽  
Xiaoguang Li ◽  
Yan Zhou ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Local Field ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Magnetic State ◽  
Magnetic Domain ◽  
Local Magnetic Field ◽  
Micromagnetic Simulations ◽  
Force Microscopy ◽  
Magnetization State

We demonstrated numerically the skyrmion formation in ultrathin nanodisks using a magnetic force microscopy tip. We found that the local magnetic field generated by the magnetic tip significantly affects the magnetization state of the nanodisks and leads to the formation of skyrmions. Experimentally, we confirmed the influence of the local field on the magnetization states of the disks. Micromagnetic simulations explain the evolution of the magnetic state during magnetic force microscopy scanning and confirm the possibility of skyrmion formation. The formation of the horseshoe magnetic domain is a key transition from random labyrinth domain states into the skyrmion state. We showed that the formation of skyrmions by the magnetic probe is a reliable and repetitive procedure. Our findings provide a simple solution for skyrmion formation in nanodisks.

Anomalous Hall effect and magnetotransport effects in the organic superconductor (TMTSF ) 2 CIO 4

1985 ◽  
Vol 314 (1528) ◽  
pp. 97-103
Keyword(s):  
Magnetic Field ◽  
Hall Effect ◽  
Magnetic State ◽  
Quantum Hall ◽  
Anomalous Hall Effect ◽  
Organic Superconductor ◽  
Hall Resistance ◽  
Threshold Field ◽  
Organic Conductor ◽  
Lower Temperature

The organic conductor (TMTSF) 2 CIO 4 exhibits unusual magnetotransport effects below 30 K. The resistivity and thermopower have large, anisotropic changes in a magnetic field, whereas the thermal conductivity is hardly affected. At lower temperature ( T ≤ 5 K) a magnetic field applied along the c * direction causes a phase transition from a metallic, non-magnetic state to a semimetallic, magnetic state. This orbitally induced transition appears to be unique in nature. Above the threshold field for this transition steps in the Hall resistance are observed, suggestive of the quantum Hall effect. In this paper we review the magnetotransport experiment in these materials and discuss the possible origins of the unusual phenomena observed.

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