-A A +A
We have extensively studied the magnetic features of a heterometallic molecular trimer, Cr 2 Cu. We have characterized molecular Cr 2 Cu by low-temperature ac susceptibility and specific-heat measurements and this allowed us to determine the microscopic parameters of the spin Hamiltonian. Then, we used x-ray magnetic circular dichroism to selectively probe local symmetries, electronic configuration, orbital, and spin magnetic moments of the magnetic ions. We found that at low temperatures only the ground state S= 3/2 is occupied and the spin of Cu is found opposite to that of Cr in agreement with spin-Hamiltonian calculations.
American Physical Society
Publication date: 
11 Oct 2010

G Lorusso, V Corradini, A Candini, A Ghirri, R Biagi, U Del Pennino, S Carretta, E Garlatti, P Santini, G Amoretti, G Timco, RG Pritchard, REP Winpenny, M Affronte

Biblio References: 
Volume: 82 Issue: 14 Pages: 144420
Physical Review B