2002/02/22 by V. S. Zotev, Vadim Zotev, G. F. Rodriguez +4
Engineering · Materials Science · Physics and Astronomy · #Material Dynamics and Properties #Metallic Glasses and Amorphous Alloys #Theoretical and Computational Physics #cond-mat.dis-nn
paper · pdf · doi:10.1103/physrevb.67.184422
published as Physical Review B 67, 184422 (2003) · 13 pages, 11 figures
arxiv created 2002/02/22 · openalex publication_date 2003/05/30 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The effect of initial conditions on aging properties of the spin-glass state is studied for a single crystal Cu:Mn 1.5 at %. It is shown that the memory of the initial state, created by the cooling process, remains strong on all experimental time scales. The t/tw scaling properties of two relaxation functions, the thermoremanent magnetization (TRM) and the isothermal remanent magnetization (IRM) (with tw1=0 and tw2=tw), are compared in detail. It is observed that the IRM relaxation as a function of t/tw demonstrates a superaging behavior. This result suggests that the subaging, exhibited by the TRM decay, arises from the influence of the cooling process, and cannot be considered a natural type of scaling in spin-glass dynamics.