1996/07/25 by G. F. Bertsch, Bertsch, G. F., V. Visuthikraisee +1
Materials Science · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Magnetic properties of thin films #atom-ph #physics.atom-ph
paper · pdf · doi:10.48550/arxiv.atom-ph/9607006
14 pages REVTex, 9 postscript figures
arxiv created 1996/07/25 · openalex publication_date 1996/07/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We examine the magnetic response of free clusters considering the spin direction and the cluster orientation as the only active degrees of freedom. The average magnetization in small fields approaches the Langevin value for paramagnets, depending on the degree to which the Hamiltonian preserves symmetries. Superparamagnetic behavior is not achievable within models considering only these degrees of freedom.