Results 191 to 200 of about 2,245 (233)
Bistability of magnetic states in Fe-Pd nanocap arrays
Nanotechnology, 2019 Abstract Magnetic bistability between vortex and single domain states in nanostructures are of great interest from both fundamental and technological perspectives. In soft magnetic nanostructures, the transition from a uniform collinear magnetic state to a vortex state (or vice versa) induced by a magnetic field involves an energy ...
P B Aravind +11 more
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Magnetic bistability of supported Mn clusters
Surface Science, 1997Using the KKR Green's function method and the local spin density approximation of the density functional theory, we have studied ultrasmall Mn clusters on an Ag(001) substrate. Our results show that supported Mn clusters not only possess a large magnetic moment per atom, but also exhibit magnetic bistability, making it possible to probe quantum ...
V S Stepanyuk +2 more
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Magnetic Bistability and Thermochromism in a Molecular CuII Chain
Inorganic Chemistry, 2009 International audienceAn original magnetic bistability and a thermochromic transition are observed in a new CuII molecular chain. Thermal structural studies reveal changes in the CuII coordination sphere, driven by a more pronounced Jahn−Teller effect at
Samia Benmansour +2 more
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Magnetic Bistability of Co Nanodots
Physical Review Letters, 2005Size-dependent magnetic single-domain versus vortex state stability of Co/Ru(0001) nanodots is explored with spin-polarized low-energy electron microscopy, analytical modeling, and micromagnetic simulations. We show that both single-domain and vortex states can be stabilized in a broad region near the phase boundary.
H F, Ding +4 more
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Magnetic amplifiers in bistable operation
Electrical Engineering, 1955MAGNETIC amplifiers in bistable operation behave substantially as a latch-type relay.1 Two widely different output levels can be obtained stably, one close to the quiescent and the other close to the saturated output. Over a certain range of the applied signal the one or the other condition is found to occur, depending on whether this range has been ...
L. A. Finzi, G. G. Feth
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Magnetic bistability in a metal-ion cluster
Nature, 1993MAGNETIC materials of mesoscopic dimensions (a few to many thousands of atoms) may exhibit novel and useful properties such as giant magnetostriction, magnetoresistivity and magnetocaloric effects1–4. Such materials also allow one to study the transition from molecular to bulk-like magnetic behaviour.
SESSOLI, ROBERTA +3 more
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Optical Bistability in a Magnetic Semiconductor
Journal of Optics, 2003Recently magnetic semiconductors are found to exhibit optical histability. We, in this paper tried and succeded in giving a theoretical model for optical bistability in a magnetic semiconductor. Using this model it is found that the decrease of magnetic impurity concentration or interaction potential favours this bistability phenomenon.
Sukanta Kumar Tripathy, S. Ananda Rao
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Bistable state in magnetic nanostructures
Physics of the Solid State, 2014The conditions of the existence of a bistable state in a ferromagnetic layer included in the magnetoresistive memory switched by the electric field have been investigated. Such states, which correspond to the local minima of the Gibbs potential, correspond to mutually perpendicular magnetization directions.
D. L. Vinokurov, A. I. Morosov
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Magnetic bistability of a single atom
Conference Digest. 2000 International Quantum Electronics Conference (Cat. No.00TH8504), 2005Photon antibunching is a prime example of quantum fluctuations of the electrodynamic field of resonance fluorescence. In the entangled atom-photon system it is complementally accompanied by transient atomic Rabi oscillations. Polarization resolved resonance fluorescence reveals an analogous phenomenon which can be interpreted as magnetic bistability at
H. Schadwinkel, V. Gomer, D. Meschede
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The bistable behaviour of the magnetic transductor
British Journal of Applied Physics, 1958It is already well known that the second harmonic magnetic transductor has instability regions. It has been found experimentally that in each region two modes of output current exist, differing only by the phase, which these currents have with respect to the exciting voltage.
E H Frei, S Shtrikman, D Treves
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