Entanglement in supramolecular spin systems of two weakly coupled antiferromagnetic rings (purple-Cr7Ni)

A. Candini; G. Lorusso; F. Troiani; A. Ghirri; S. Carretta; P. Santini; G. Amoretti; C. Muryn; F. Tuna; G. Timco; E. J L McInnes; R. E P Winpenny; W. Wernsdorfer; M. Affronte

doi:10.1103/PhysRevLett.104.037203

Entanglement in supramolecular spin systems of two weakly coupled antiferromagnetic rings (purple-Cr7Ni)

A. Candini, G. Lorusso, F. Troiani, A. Ghirri, S. Carretta, P. Santini, G. Amoretti, C. Muryn, F. Tuna, G. Timco, E. J L McInnes, R. E P Winpenny, W. Wernsdorfer, M. Affronte

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Abstract

We characterize supramolecular magnetic structures, consisting of two weakly coupled antiferromagnetic rings, by low-temperature specific heat, susceptibility, magnetization and electron paramagnetic resonance measurements. Intra- and inter-ring interactions are modeled through a microscopic spin-Hamiltonian approach that reproduces all the experimental data quantitatively and legitimates the use of an effective two-qubit picture. Spin entanglement between the rings is experimentally demonstrated through magnetic susceptibility below 50 mK and theoretically quantified by the concurrence. © 2010 The American Physical Society.

Original language	English
Article number	037203
Journal	Physical Review Letters
Volume	104
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.104.037203
Publication status	Published - 21 Jan 2010

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Candini, A., Lorusso, G., Troiani, F., Ghirri, A., Carretta, S., Santini, P., Amoretti, G., Muryn, C., Tuna, F., Timco, G., McInnes, E. J. L., Winpenny, R. E. P., Wernsdorfer, W., & Affronte, M. (2010). Entanglement in supramolecular spin systems of two weakly coupled antiferromagnetic rings (purple-Cr7Ni). Physical Review Letters, 104(3), Article 037203. https://doi.org/10.1103/PhysRevLett.104.037203

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abstract = "We characterize supramolecular magnetic structures, consisting of two weakly coupled antiferromagnetic rings, by low-temperature specific heat, susceptibility, magnetization and electron paramagnetic resonance measurements. Intra- and inter-ring interactions are modeled through a microscopic spin-Hamiltonian approach that reproduces all the experimental data quantitatively and legitimates the use of an effective two-qubit picture. Spin entanglement between the rings is experimentally demonstrated through magnetic susceptibility below 50 mK and theoretically quantified by the concurrence. {\textcopyright} 2010 The American Physical Society.",

author = "A. Candini and G. Lorusso and F. Troiani and A. Ghirri and S. Carretta and P. Santini and G. Amoretti and C. Muryn and F. Tuna and G. Timco and McInnes, {E. J L} and Winpenny, {R. E P} and W. Wernsdorfer and M. Affronte",

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doi = "10.1103/PhysRevLett.104.037203",

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Candini, A, Lorusso, G, Troiani, F, Ghirri, A, Carretta, S, Santini, P, Amoretti, G, Muryn, C, Tuna, F, Timco, G, McInnes, EJL , Winpenny, REP, Wernsdorfer, W & Affronte, M 2010, 'Entanglement in supramolecular spin systems of two weakly coupled antiferromagnetic rings (purple-Cr7Ni)', Physical Review Letters, vol. 104, no. 3, 037203. https://doi.org/10.1103/PhysRevLett.104.037203

TY - JOUR

T1 - Entanglement in supramolecular spin systems of two weakly coupled antiferromagnetic rings (purple-Cr7Ni)

AU - Candini, A.

AU - Lorusso, G.

AU - Troiani, F.

AU - Ghirri, A.

AU - Carretta, S.

AU - Santini, P.

AU - Amoretti, G.

AU - Muryn, C.

AU - Tuna, F.

AU - Timco, G.

AU - McInnes, E. J L

AU - Winpenny, R. E P

AU - Wernsdorfer, W.

AU - Affronte, M.

PY - 2010/1/21

Y1 - 2010/1/21

N2 - We characterize supramolecular magnetic structures, consisting of two weakly coupled antiferromagnetic rings, by low-temperature specific heat, susceptibility, magnetization and electron paramagnetic resonance measurements. Intra- and inter-ring interactions are modeled through a microscopic spin-Hamiltonian approach that reproduces all the experimental data quantitatively and legitimates the use of an effective two-qubit picture. Spin entanglement between the rings is experimentally demonstrated through magnetic susceptibility below 50 mK and theoretically quantified by the concurrence. © 2010 The American Physical Society.

AB - We characterize supramolecular magnetic structures, consisting of two weakly coupled antiferromagnetic rings, by low-temperature specific heat, susceptibility, magnetization and electron paramagnetic resonance measurements. Intra- and inter-ring interactions are modeled through a microscopic spin-Hamiltonian approach that reproduces all the experimental data quantitatively and legitimates the use of an effective two-qubit picture. Spin entanglement between the rings is experimentally demonstrated through magnetic susceptibility below 50 mK and theoretically quantified by the concurrence. © 2010 The American Physical Society.

U2 - 10.1103/PhysRevLett.104.037203

DO - 10.1103/PhysRevLett.104.037203

M3 - Article

SN - 0031-9007

VL - 104

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

M1 - 037203

ER -

Entanglement in supramolecular spin systems of two weakly coupled antiferromagnetic rings (purple-Cr7Ni)

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