Magnetic dipolar ordering and quantum phase transition in an Fe8 molecular magnet

• Published in: Physical review letters Vol. 107; no. 9; p. 097203
• Main Authors: Burzurí, E, Luis, F, Barbara, B, Ballou, R, Ressouche, E, Montero, O, Campo, J, Maegawa, S
• Format: Journal Article
• Language: English
• Published: United States 23.08.2011
• Subjects: Iron - chemistry; Magnetics; Neutron Diffraction; Quantum Theory

We show that a crystal of mesoscopic Fe(8) single-molecule magnets is an experimental realization of the quantum Ising model in a transverse field, with dipolar interactions. Quantum annealing has enabled us to explore the quantum and classical phase transitions between the paramagnetic and ferromag...