Hinode observations reveal boundary layers of magnetic elements in the solar photosphere R. Rezaei, O. Steiner, S. Wedemeyer-Böhm, R. Schlichenmaier, W. Schmidt and B. W. Lites A&A, 476 3 (2007) L33-L36 Published online: 12 November 2007 DOI: 10.1051/0004-6361:20078371