2000/04/16 by Norio Kumada, N. Kumada, Anju Sawada +13 · 1 citation
Chemistry · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Quantum and electron transport phenomena #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1143/jpsj.69.3178
published as J. Phys. Soc. Jpn. 69, 3178 (2000) · 4 pages, 4 figures
arxiv created 2000/04/16 · openalex publication_date 2000/10/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
By tilting the samples in the magnetic field, we measured and compared the Skyrmion excitations in the bilayer quantum Hall (QH) state at the Landau-level filling factor ν =2 and in the monolayer QH state at ν =1. The observed number of flipped spins is Ns=14 in the bilayer system with a large tunneling gap, and Ns=7 in the bilayer system with a small tunneling gap, while it is Ns=7 in the monolayer system. The difference is interpreted due to the interlayer exchange interaction. Moreover, we have observed seemingly preferred numbers Ns=14,7,1 for the flipped spins by tilting bilayer samples.