Isothermal remanent magnetization and the spin dimensionality of spin glasses
نویسندگان
چکیده
منابع مشابه
Absence of ageing in the remanent magnetization in Migdal–Kadanoff spin glasses
We study the non-equilibrium behaviour of three-dimensional spin glasses in the Migdal–Kadanoff approximation. This approximation is exact for disordered hierarchical lattices which have a unique ground state and equilibrium properties correctly described by the droplet model. Extensive numerical simulations show that this model lacks ageing in the remanent magnetization as well as a maximum in...
متن کاملStaggered-magnetization approach to spin-glasses
A method is developed to solve the Sherrington-Kirkpatrick infinite-ranged spin-gl &ss model, considering the staggered magnetizations lssociated with the eigenvalue spectrum of the random inter lction m ltrix ls the spin-glass order pirameters. It is shown that the spin-gl lss ordering is not associated with l m lcroscopic condens ltion of eigenstates, but inste ld e lch of the N eigenstates a...
متن کاملTime decay of the remanent magnetization in the +/-J spin glass model at T=0.
Using the zero-temperature Metropolis dynamics, the time decay of the remanent magnetization in the +/-J Edward-Anderson spin glass model with a uniform random distribution of ferromagnetic and antiferromagnetic interactions has been investigated. Starting from the saturation, the magnetization per spin m reveals a slow decrease with time, which can be approximated by a power law: m(t)=m(infini...
متن کاملTime Decay of the Remanent Magnetization in ±j Spin Glass Model at T = 0
Using the zero-temperature Metropolis dynamics the time decay of the remanent magnetization in the ±J Edward-Anderson spin glass model with a uniform random distribution of ferromagnetic and antiferromagnetic interactions has been investigated. Starting from the saturation the magnetization per spin m reveals a slow decrease with time which can be approximated by a power law: m(t) = m ∞ + t a 0...
متن کاملSpin Glasses
The understanding of random magnetic systems known as spin glass has been one of the major challenges in condensed matter physics over that past two decades. Study of this state can be thought of as a rst step towards understanding more complex and disordered systems.This paper reviews some of the theoretical developmets in this eld and tries to answer the question how well are these systems un...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Philosophical Magazine Letters
سال: 2010
ISSN: 0950-0839,1362-3036
DOI: 10.1080/09500839.2010.502140