Macroscopic quantum tunnelling of magnetization in a single crystal of nanomagnets

The results of low-temperature experiments on a single crystal composed of superparamagnetic manganese clusters clearly demonstrate the existence of quantum-mechanical tunnelling of the bulk magnetization. The magnetization shows hysteresis loops with a distinct "staircase" structure.

Saved in:
Bibliographic Details
Published inNature (London) Vol. 383; no. 6596; pp. 145 - 147
Main Authors Thomas, L, Lionti, F, Ballou, R, Gatteschi, D, Sessoli, R, Barbara, B
Format Journal Article
LanguageEnglish
Published London Nature Publishing 12.09.1996
Nature Publishing Group
Subjects
Chemistry
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Crystals
Domain effects, magnetization curves, and hysteresis
Exact sciences and technology
Low temperature
Magnetic properties and materials
Magnetism
Magnetization curves, hysteresis, Barkhausen and related effects
Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects
Manganese
Nonmetallic ferromagnetic materials
Physics
Quantum theory
Studies of specific magnetic materials
Temperature dependence
Magnetization
Transition element compounds
Tunnel effect
Nanostructures
Magnets
Symmetry breaking
Monocrystals
Manganese compounds
Jump process
Acetic acid
Activation energy
Spin state
Hysteresis
Quantum theory
Organic compounds
Hydrates
Online AccessGet full text

Cover

More Information
Summary:The results of low-temperature experiments on a single crystal composed of superparamagnetic manganese clusters clearly demonstrate the existence of quantum-mechanical tunnelling of the bulk magnetization. The magnetization shows hysteresis loops with a distinct "staircase" structure.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0028-0836
1476-4687
DOI:10.1038/383145a0