Magnetic moments around the Z =40 shell closure have been established using nuclear magnetic resonance on oriented nuclei in iron.From the resonance frequencies we established Il ("Y;2+)I=&. 01(+-is)p~, Ip("Zr; -', ')1=1. »3(»)p~, Ip("»;2')I=6. 1S3 (5)p~. The results obtained are discussed in the framework of particle-core coupling and, in more detail, using the Nilsson deformed single-particle model. It is shown that for certain deformation regions the measurement of the magnetic moment can give information on the nuclear quadrupole deformation.