2004/02/29 by David Bono, D. Bono, Philippe Mendels +5
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.92.217202
published as Physical Review Letters 92 (2004) 217202 · Published in Phys. Rev. Lett. 92, 217202 (2004). Only minor changes as compared to previous version. 4 pages, 4 figures
openalex publication_date 2004/05/27 · arxiv created 2004/06/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present microscopic and macroscopic magnetic properties of the highly frustrated antiferromagnet Ba2Sn2ZnCr7pGa_10\ensuremath-7pO22, respectively, probed with NMR and SQUID experiments. The T variation of the intrinsic susceptibility of the Cr3+ frustrated Kagom'e bilayer, \ensuremathχKag, displays a maximum around 45 K. The dilution of the magnetic lattice has been studied in detail for 0.29\ensuremath≤p\ensuremath≤0.97. Novel dilution independent defects, likely related with magnetic bond disorder, are evidenced and discussed. We compare our results to SrCr9pGa_12\ensuremath-9pO19. Both bond defects and spin vacancies do not affect the average susceptibility of the Kagom'e bilayers.