1997/10/31 by G. E. Granroth, B. H. Ward, L. -K. Chou +15 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetism in coordination complexes #Organic and Molecular Conductors Research #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.58.9312
Paper revised with additional data, to be published in Physical Review B
arxiv created 1998/07/11 · openalex publication_date 1998/10/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Electron spin resonance (ESR), at 9, 94, and 190 GHz, and magnetization studies on polycrystalline, powder, and ultrafine powder samples of Ni(C3H10N2)2N3(ClO4) (NINAZ) have revealed several effects arising from the Haldane phase. Using the g value of the end-chain spin S as determined by ESR, our results confirm that the end-chain spins are S=(1)/(2) and show no evidence for S=1 end-chains. In addition, the ESR signals reveal spectral weight consistent with a model describing interactions between the end-chain spins on the shortest chains and between the magnetic excitations on the chains and the end-chain spins.