Results 151 to 160 of about 1,342 (197)
Nanoscience and Technology, 2009 Deals with the novel field of Nanomagnetism, the study of magnetic samples that have at least one dimension in the nanoscopic range. This book emphasizes general principles and mechanisms that are relevant for the understanding of the intriguing ...
Alberto P Guimarães
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ACS Photonics, 2014
We report on the enhanced optical properties of chiral magnetic nanohelices with critical dimensions comparable to the ferromagnetic domain size. They are shown to be ferromagnetic at room temperature, have defined chirality, and exhibit large optical activity in the visible as verified by electron microscopy, superconducting quantum interference ...
Sahand Eslami +8 more
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We report on the enhanced optical properties of chiral magnetic nanohelices with critical dimensions comparable to the ferromagnetic domain size. They are shown to be ferromagnetic at room temperature, have defined chirality, and exhibit large optical activity in the visible as verified by electron microscopy, superconducting quantum interference ...
Sahand Eslami +8 more
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Coordination Chemistry Reviews, 2006
Electron paramagnetic resonance has played a crucial role in the determination of the properties and in explaining the origin of the peculiar behaviour of molecular nanomagnets, i.e., the slow relaxation of the magnetization at low temperature and the observation of quantum tunnelling of the magnetization.
GATTESCHI, DANTE +5 more
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Electron paramagnetic resonance has played a crucial role in the determination of the properties and in explaining the origin of the peculiar behaviour of molecular nanomagnets, i.e., the slow relaxation of the magnetization at low temperature and the observation of quantum tunnelling of the magnetization.
GATTESCHI, DANTE +5 more
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2023
The paper studied the dependence of the magnitude of the magnetic field induced in the contour formed by the edge channels of the silicon nanosandwich structure on the magnitude of the external magnetic field used for pre-magnetization. The measurements were carried out using a fluxgate magnetometer inside a magnetic screen, which ensures the value of ...
Bagraev, N.T. +2 more
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The paper studied the dependence of the magnitude of the magnetic field induced in the contour formed by the edge channels of the silicon nanosandwich structure on the magnitude of the external magnetic field used for pre-magnetization. The measurements were carried out using a fluxgate magnetometer inside a magnetic screen, which ensures the value of ...
Bagraev, N.T. +2 more
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Applied Surface Science, 1998
Nanotips are nanoscale protrusions ending in one atom fabricated in vacuum by 2D surface melting and field gradient. They are field emission sources of electrons and ions, producing self-collimated and strongly coherent beams with high brightness. Using the nanotip as the source in a projection microscope results in the Fresnel projection microscope ...
Vu Thien Binh
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Nanotips are nanoscale protrusions ending in one atom fabricated in vacuum by 2D surface melting and field gradient. They are field emission sources of electrons and ions, producing self-collimated and strongly coherent beams with high brightness. Using the nanotip as the source in a projection microscope results in the Fresnel projection microscope ...
Vu Thien Binh
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NANOMAGNETICS IN BIOTECHNOLOGY
Materials Processing in Magnetic Fields, 2005Applications of nanomagnetic particles in cell separation and magnetic hyperthermia are presented here. In general, biological cells are weakly paramagnetic or diamagnetic. Therefore, to enhance the magnetic susceptibility of the biological cells to interact with an applied magnetic field, nanoto micron-sized magnetic particles are tagged to the ...
C.-J. CHEN, Y. HAIK, J. CHATTERJEE
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Proceedings of the International School of Physics “Enrico Fermi”
An overview is presented of the methods used to describe the behaviour of ferromagnetic materials on small spatial scales. Methods based on energy minimisation (micromagnetics) are discussed. It is shown that these methods naturally identify a characteristic length (exchange length) that controls the insurgence of phenomena that are inherent to ...
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An overview is presented of the methods used to describe the behaviour of ferromagnetic materials on small spatial scales. Methods based on energy minimisation (micromagnetics) are discussed. It is shown that these methods naturally identify a characteristic length (exchange length) that controls the insurgence of phenomena that are inherent to ...
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Investigation of advanced nanomagnetic elements in nanomagnetic logic
2019Nanomagnetic logic uses a magnetic phenomenon, which allows to encode and digitally process bits. To do this, elongated single domain ferromagnets are storing the binary “0” or “1” value in one of their two possible magnetic states. Due to dipolar magnetic coupling, two or more magnets can not only save, but process digital values, if the distance ...
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Superlattices and Microstructures, 2007
Abstract An overview is provided of recent work at Argonne that covers three aspects of nanomagnetism. The first is in the area of spin transport, where all-metallic lateral spin valves are explored. The second is in the area of spin dynamics, where a variety of magnetic vortex geometries are summarized. And the third is in the area of self-assembly,
S.D. Bader +6 more
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Abstract An overview is provided of recent work at Argonne that covers three aspects of nanomagnetism. The first is in the area of spin transport, where all-metallic lateral spin valves are explored. The second is in the area of spin dynamics, where a variety of magnetic vortex geometries are summarized. And the third is in the area of self-assembly,
S.D. Bader +6 more
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Physics Today, 2007
The behavior of magnets with submicron dimensions depends intimately on the magnets’ shape and size. The rich variety of resulting phenomena brings with it the promise of new technologies.
C. L. Chien, Frank Q. Zhu, Jian-Gang Zhu
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The behavior of magnets with submicron dimensions depends intimately on the magnets’ shape and size. The rich variety of resulting phenomena brings with it the promise of new technologies.
C. L. Chien, Frank Q. Zhu, Jian-Gang Zhu
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