Spin and orbital moments in Fe clusters

Spin Coupling and Orbital Angular Momentum Quenching in Free Iron Clusters.
M. Niemeyer,1,2 K. Hirsch,1,2 V. Zamudio-Bayer,1,2 A. Langenberg,1,2 M. Vogel,1 M. Kossick,1,2 C. Ebrecht, K. Egashira,3 A. Terasaki,4,5 T. Mo¨ ller,2 B. v. Issendorff,6 and J. T. Lau
Phys. Rev. Lett. 108, 057201 (2012)

 Relative spin (filled circles) and orbital (open circles) magnetic moments of Fe+ n clusters normalized to the atomic values (muS= 4 muB and muL= 2 muB). While the spin moment remains at 60%–90%, the orbital value is strongly reduced already for Fe3+ .