Journal
PHYSICAL REVIEW B
Volume 82, Issue 14, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.144420
Keywords
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Funding
- EPSRC (U.K.)
- Italian Ministry of Research
- FP7-ICT
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We have extensively studied the magnetic features of a heterometallic molecular trimer, Cr2Cu. We have characterized molecular Cr2Cu 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.
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