2000/09/01 by Yasuo Narumi, Masayuki Hagiwara, Masanori Kohno +1
Chemistry · Materials Science · Physics and Astronomy · #Advanced NMR Techniques and Applications #Anisotropy #Atomic physics #Chemistry #Condensed matter physics #Crystallography #Dimer #Excited state #Magnetic susceptibility #Magnetism in coordination complexes #Materials science #Nuclear magnetic resonance #Organic and Molecular Conductors Research #Physics #Quantum mechanics #Singlet state #Spins #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevlett.86.324
RevTeX, 14pages (preprint.sty) with 5figures, submitted to Phys. R ev. Lett
arxiv created 2000/09/01 · openalex publication_date 2001/01/08 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Susceptibility, ESR, and magnetization measurements have been performed on single crystals of an S\phantom\rule0ex0ex=\phantom\rule0ex0ex1 bond alternating chain compound: [Ni(333\ensuremath-tet)(\ensuremathμ\ensuremath-NO2)](ClO4) (333\ensuremath-tet\phantom\rule0ex0ex=\phantom\rule0ex0exN,N^\ensuremath'\ensuremath-bis(3\ensuremath-aminopropyl)propane\ensuremath-1,3\ensuremath-diamine) and the compound doped with a small amount of Zn. We observed an anomalous angular dependence in the Zn-doped sample. These results are well explained by the model based on the valence-bond solid picture for the singlet-dimer phase. The picture implies that the free spins of S\phantom\rule0ex0ex=\phantom\rule0ex0ex1 with a positive uniaxial single-ion anisotropy are induced at the edges of the chains without forming the singlet dimer.