The substitution of one metal ion in a Cr-based molecular ring with dominant antiferromagneticcouplings allows the engineering of its level structure and ground-state degeneracy. Here we characterize aCr7Ni molecular ring by means of low-temperature specific-heat and torque-magnetometry measurements,thus determining the microscopic parameters of the corresponding spin Hamiltonian. The energyspectrum and the suppression of the leakage-inducing S mixing render the Cr7Ni molecule a suitablecandidate for the qubit implementation, as further substantiated by our quantum-gate simulations.

Molecular Engineering of antiferromagnetic rings for quantum computation / F., Troiani; Ghirri, Alberto; Affronte, Marco; S., Carretta; P., Santini; G., Amoretti; S., Piligkos; G., Timco; R. E. P., Winpenny. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 94:(2005), pp. 207208-207212. [10.1103/PhysRevLett.94.207208]

Molecular Engineering of antiferromagnetic rings for quantum computation.

GHIRRI, Alberto;AFFRONTE, Marco;
2005

Abstract

The substitution of one metal ion in a Cr-based molecular ring with dominant antiferromagneticcouplings allows the engineering of its level structure and ground-state degeneracy. Here we characterize aCr7Ni molecular ring by means of low-temperature specific-heat and torque-magnetometry measurements,thus determining the microscopic parameters of the corresponding spin Hamiltonian. The energyspectrum and the suppression of the leakage-inducing S mixing render the Cr7Ni molecule a suitablecandidate for the qubit implementation, as further substantiated by our quantum-gate simulations.
94
207208
207212
Molecular Engineering of antiferromagnetic rings for quantum computation / F., Troiani; Ghirri, Alberto; Affronte, Marco; S., Carretta; P., Santini; G., Amoretti; S., Piligkos; G., Timco; R. E. P., Winpenny. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 94:(2005), pp. 207208-207212. [10.1103/PhysRevLett.94.207208]
F., Troiani; Ghirri, Alberto; Affronte, Marco; S., Carretta; P., Santini; G., Amoretti; S., Piligkos; G., Timco; R. E. P., Winpenny
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/451614
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