منابع مشابه
Metastable states in magnetic nanorings
Magnetization states and hysteresis behavior of small ferromagnetic rings, of diameters 180–520 nm, have been investigated using magnetic force microscopy. In addition to the expected bi-domain ~‘‘onion’’! and flux-closed ~‘‘vortex’’! magnetization states, a metastable state has been found. This ‘‘twisted’’ state contains a 360° domain wall which can exist over a wide range of applied fields. F...
متن کاملCan Metastable States be Trapped?
Synchronizers (commonly implemented as chains of two flipflops) are used to reduce the probability that metastable states, emanating from asynchronous input transitions, propagate to state/data flip-flops and cause unwieldy catastrophes. Another way to think of this is that synchronizers “trap” metastability, preventing it from being observed by others circuits until a failure rate criteria is ...
متن کاملLifetime Measurements of Metastable States in Fe1
D. Rostohar,1 A. Derkatch,2 H. Hartman,3 S. Johansson,3 H. Lundberg,4 S. Mannervik,1 L.-O. Norlin,5 P. Royen,2 and A. Schmitt6 1Atomic Physics, Stockholm University, S-104 05 Stockholm, Sweden 2Physics Department, Stockholm University, P.O. Box 6730, S-113 85 Stockholm, Sweden 3Atomic Spectroscopy, Department of Physics, Box 118, S-221 00 Lund, Sweden 4Department of Physics, Lund Institute of T...
متن کاملMetastable magnetic domain wall dynamics
The dynamics of metastable magnetic domain walls in straight ferromagnetic nanowires under spin waves, external magnetic fields and currentinduced spin-transfer torque are studied by means of micromagnetic simulations. It is found that in contrast to a stable wall, it is possible to displace a metastable domain wall in the absence of external excitation. In addition, independent of the domain w...
متن کاملRecipes for Metastable States in Spin Glasses
In this paper we develop further a metl~od recently introduced by one of us to study metastable states in spm glasses. We consider a 'potential function', defined as the
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2003
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.67.184425