From Linear to Nonlinear Response in Spin Glasses: Importance of Mean-Field-Theory Predictions

Physics – Condensed Matter – Disordered Systems and Neural Networks

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

9 pages, 10 figures

Scientific paper

10.1103/PhysRevB.66.014412

Deviations from spin-glass linear response in a single crystal Cu:Mn 1.5 at % are studied for a wide range of changes in magnetic field, $\Delta H$. Three quantities, the difference $TRM-(MFC-ZFC)$, the effective waiting time, $t_{w}^{eff}$, and the difference $TRM(t_{w})-TRM(t_{w}=0)$ are examined in our analysis. Three regimes of spin-glass behavior are observed as $\Delta H$ increases. Lines in the $(T,\Delta H)$ plane, corresponding to ``weak'' and ``strong'' violations of linear response under a change in magnetic field, are shown to have the same functional form as the de Almeida-Thouless critical line. Our results demonstrate the existence of a fundamental link between static and dynamic properties of spin glasses, predicted by the mean-field theory of aging phenomena.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

From Linear to Nonlinear Response in Spin Glasses: Importance of Mean-Field-Theory Predictions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with From Linear to Nonlinear Response in Spin Glasses: Importance of Mean-Field-Theory Predictions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and From Linear to Nonlinear Response in Spin Glasses: Importance of Mean-Field-Theory Predictions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-95463

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.