Quantum dynamics of exchange biased Single Molecule Magnets

Abstract

We present a new family of exchange biased Single Molecule Magnets in which antiferromagnetic coupling between the two components results in quantum behaviour different from that of the individual SMMs. Our experimental observations and theoretical analysis suggest a means of tuning the quantum tunnelling of magnetization in SMMs. See also: W. Wernsdorfer, N. Aliaga-Alcalde, D. Hendrickson, G. Christou, Nature 416 (2002) 406.

6 pages, 9 figures, ICM 2003 in Rome

References in corpus (7)

• Quantum Coherence in an Exchange-Coupled Dimer of Single-Molecule Magnets
• Spin quantum tunneling via entangled states in a dimer of exchange coupled single-molecule magnets
• Quantum tunneling in a three dimensional network of exchange coupled single-molecule magnets
• DFT calculation of the intermolecular exchange interaction in the magnetic Mn${}_4$ dimer
• Quantum tunneling of two coupled single-molecular magnets
• Level splittings in exchange-biased spin tunneling
• Field-tuned quantum tunneling in a supramolecule dimer $[M{n}_4{]}_2$

Cited by in corpus (3)

• Macroscopic quantum tunneling and quantum-classical phase transitions of the escape rate in large spin systems
• Phase transition between quantum and classical regimes for the escape rate of dimeric molecular nanomagnets in a staggered magnetic field
• EPR spectrum via entangled states for an Exchange-Coupled Dimer of Single-Molecule Magnets