Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2003-10-14
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 5 figures
Scientific paper
10.1103/PhysRevLett.91.227203
A new family of supramolecular, antiferromagnetically exchange-coupled dimers of single-molecule magnets (SMMs) has recently been reported [W. Wernsdorfer, N. Aliaga-Alcalde, D.N. Hendrickson, and G. Christou, Nature 416, 406 (2002)]. Each SMM acts as a bias on its neighbor, shifting the quantum tunneling resonances of the individual SMMs. Hysteresis loop measurements on a single crystal of SMM-dimers have now established quantum tunneling of the magnetization via entangled states of the dimer. This shows that the dimer really does behave as a quantum-mechanically coupled dimer. The transitions are well separated, suggesting long coherence times compared to the time scale of the energy splitting. This result is of great importance if such systems are to be used for quantum computing. It also allows the measurement of the longitudinal and transverse superexchange coupling constants.
Aliaga-Alcalde Nuria
Christou George
Foguet-Albiol D.
Tiron Raluca
Wernsdorfer Wolfgang
No associations
LandOfFree
Spin quantum tunneling via entangled states in a dimer of exchange coupled single-molecule magnets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spin quantum tunneling via entangled states in a dimer of exchange coupled single-molecule magnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin quantum tunneling via entangled states in a dimer of exchange coupled single-molecule magnets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-527234