2005/05/10 by Bridget Ingham, B. Ingham, Ingham, B. +11
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Magnetism in coordination complexes #Materials Science (cond-mat.mtrl-sci) #Porphyrin and Phthalocyanine Chemistry #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0505224
7 pages, 9 figures
arxiv created 2005/05/10 · openalex publication_date 2005/05/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Structural analysis of a layered manganese tungstate diaminoalkane hybrid series suggests that this compound forms a spin-5/2 spin-ladder structure. We use X-ray diffraction, electron microscopy and x-ray absorption spectroscopy results to infer the structure. DC magnetization of the manganese compound and a possible copper analogue appear to show that the manganese system behaves like 1-dimensional antiferromagnetic Heisenberg chains (i.e. J∥ ≫ J⊥) while the copper system is fitted well by a S = 1/2 spin ladder model, giving the parameters g = 1.920 ± 0.008, J∥/kB = -0.3 ± 1.4K; J⊥/kB = 213.6 ± 1.1K. The ability to tune adjacent inorganic layers of the hybrid materials by altering the length of the organic `spacer' molecules gives enormous promise for the use of these materials, especially when doped, to provide a greater understanding of spin ladder systems.