Results 171 to 180 of about 9,972 (221)

Magnetic Bistability in Molecule-based Magnetic Materials

Science, 2006
A large first-order magnetic phase transition in an organic radical, 1,3,5-trithia-2,4,6-triazapentalenyl, is described. The transition occurs with a wide thermal hysteresis loop over the temperature range 230 to 305 kelvin. The high-temperature phase is paramagnetic, and its structure consists of a uniform one-dimensional stacking of the radical.
K. Awaga, W. Fujita, T. Tanaka, H. Matsuzaki, H. Okamoto   +4 more
openaire   +3 more sources

Magnetic amplifiers in bistable operation

Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, 1955
MAGNETIC 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. C. Feth
openaire   +2 more sources

Magnetic Bistability of Co Nanodots

Physical Review Letters, 2005
Size-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, A K, Schmid, Dongqi, Li, K Yu, Guslienko, S D, Bader   +4 more
openaire   +2 more sources

Bistable state in magnetic nanostructures

Physics of the Solid State, 2014
The 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
openaire   +1 more source

Magnetic bistability in a metal-ion cluster

Nature, 1993
MAGNETIC 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, GATTESCHI, DANTE, CANESCHI, ANDREA, M. NOVAK   +3 more
openaire   +2 more sources

Magnetic Bistability in a Discrete Organic Radical

Journal of the American Chemical Society, 2016
Molecular assembly with magnetic bistability has been of considerable interest for application as electronic devices. In contrast to transition-metal complexes, magnetic bistability so far observed in organic radical crystals is mainly caused by intermolecular electron-exchange interaction.
Tao, Li, Gengwen, Tan, Dong, Shao, Jing, Li, Zaichao, Zhang, You, Song, Yunxia, Sui, Sheng, Chen, Yong, Fang, Xinping, Wang   +9 more
openaire   +2 more sources

Magnetic bistable micro-actuator with integrated permanent magnets

Proceedings of IEEE Sensors, 2004., 2006
A new magnetic micro-actuator with integrated permanent magnets has been developed. The design of this device, with a levitating mobile magnet, is a real innovation and is patented. The structure was modeled using analytical and numerical calculations.
C. Dieppedale, B. Desloges, H. Rostaing, J. Delamare, O. Cugat, J. Meunier-Carus   +5 more
openaire   +1 more source

Magnetic bistability of supported Mn clusters

Surface Science, 1997
Using 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, W. Hergert, K. Wildberger, S.K. Nayak, P. Jena   +4 more
openaire   +1 more source