Beckman, "Measurement of complex susceptibility on a metallic spin glass
with broad relaxation spectrum," Journal of Magnetism and Magnetic Materials, vol.
Then, we review some of the magnetic ground states such as superparamagnetism, superspin glass, surface spin glass
, and superferromagnetism in ensembles of MNPs.
We then poured them densely into the tray obtaining the nematic non-lattice structure like the spin glass
Patterns can get frozen prematurely, and then the spin glass
as a whole can't readily reach the state with the lowest energy.
In observing unicorns, he makes friends with the elusive "Spin glass
" and introduces it all 'round.
The result is a spin glass
, meaning that the spins are randomly oriented.
Mathematicians and physicists from Europe discuss motifs stability in hierarchical modular networks, asymptotic techniques in the solution of the Maxwell equations in plasmas, simple exact and asymptotic solutions of the one-dimensional run-up problem over a slowly varying (quasiplanar) bottom, universality for couplings correlation in mean field spin glasses
, poker cash games in terms of thermodynamics systems, accretion processes in astrophysics, density functional theory and its time-dependent extension, the nonlinear Schr|dinger equation on a torus, portfolio optimization using a mean field theory approach, and fluctuation of the eigenvalue number.
Later chapters cover low-dimensional frustrated quantum spin models, pyrochlores, and classical and quantum spin glasses
where disorder and frustration act simultaneously.
Each of these aspects is illustrated schematically and in terms of physical examples, chosen from multicritical phenomena, quantum phase transition, spin glasses
, relaxation, phase ordering and quantum dissipation.
Here Wadhawan (Bhabha Atomic Research Center, Mumbai, India) provides an overview of current research and a tantalizing look at what is to come, explaining information processing by biological and artificial smart structures, the role of ferroic materials (including spin glasses
, multiferroics and ceramics), soft matter (including colloids, polymers and polymer gels, liquid crystals and ferrofluids), self-assembly and organization of matter, nanostructures (including two-dimensional microfabrication procedures), elements of human intelligence, smart censor systems, sensors and actuators for smart structures, machine intelligence, and the future of smart structures, including the possibility of creating new life forms.
Stein studies complex materials known as spin glasses
, which have discordant, disorderly magnetic interactions amongst their constituent atoms, and he sees a connection between mathematical models of spin glasses
and the concept of adaptive landscapes.
The topics of the papers include the Anderson model of magnetic impurities, the study of spin glasses
, the fluctuating valence problem and superexchange, the Josephson effect, and the "Higgs" mechanism in elementary particle physics.