2003/06/26 by Hiromitsu Hori, Shoji Yamamoto · 21 citations
Biochemistry, Genetics and Molecular Biology · Chemistry · Materials Science · Mathematics · Physics and Astronomy · #Chemistry #Condensed matter physics #Electron Spin Resonance Studies #Ferrimagnetism #Inverse #Ising model #Lanthanide and Transition Metal Complexes #Lattice (music) #Magnetic field #Magnetism in coordination complexes #Magnetization #Mathematics #Physics #Quantum mechanics #Relaxation (psychology) #Square lattice #cond-mat.stat-mech #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.68.054409
published in Physical review. B, Condensed matter 68(5) (American Physical Society) · to be published in Phys. Rev. B 68 August 01 (2003)
arxiv created 2003/06/26 · openalex publication_date 2003/08/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Motivated by ferrimagnetic oligonuclear and chain compounds synthesized by Caneschi et al., both of which consist of alternating manganese(II) ions and nitronyl-nitroxide radicals, we calculate the nuclear spin-lattice relaxation rate 1/T1, employing a recently developed modified spin-wave theory. 1/T1 as a function of temperature drastically varies with the location of probe nuclei in both clusters and chains, though the relaxation time scale is much larger in zero dimension than in one dimension. 1/T1 as a function of an applied field in long chains forms a striking contrast to that in finite clusters, diverging with decreasing fieldlike inverse square root at low temperatures and logarithmically at high temperatures.