Molecular Nanomagnets

Front Cover
OUP Oxford, Apr 14, 2011 - Science - 416 pages
Nanomagnetism is a rapidly expanding area of research which appears to be able to provide novel applications. Magnetic molecules are at the very bottom of the possible size of nanomagnets and they provide a unique opportunity to observe the coexistence of classical and quantum properties. The discovery in the early 90's that a cluster comprising twelve manganese ions shows hysteresis of molecular origin, and later proved evidence of quantum effects, opened a new research area which is still flourishing through the collaboration of chemists and physicists. This book is the first attempt to cover in detail the new area of molecular nanomagnetism, for which no other book is available. In fact research and review articles, and book chapters are the only tools available for newcomers and the experts in the field. It is written by the chemists originators and by a theorist who has been one of the protagonists of the development of the field, and is explicitly addressed to an audience of chemists and physicists, aiming to use a language suitable for the two communities.
 

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Contents

1INTRODUCTION
2MAGNETIC INTERACTIONS IN MOLECULAR SYSTEMS
3OBSERVATION OF MICROSCOPIC MAGNETISM
4SINGLEMOLECULE MAGNETS
5THERMALLY ACTIVATED MAGNETIC RELAXATION
6MAGNETIC TUNNELLING OF AN ISOLATED SPIN
7INTRODUCTION TO PATH INTEGRALS
8TUNNELLING IN A TIMEDEPENDENT MAGNETIC FIELD AT LOW TEMPERATURE
APPENDIX ASYSTEMS OF UNITS PHYSICAL CONSTANTS AND BASIC MATHEMATICAL TOOLS
APPENDIX BTHE MAGNETIC FIELD
APPENDIX CHOW IRREVERSIBILITY COMES IN
APPENDIX DBASIC PROPERTIES OF THE MASTER EQUATION
APPENDIX EDERIVATION OF THE ARRHENIUS LAW
APPENDIX FPHONONS AND HOW TO USE THEM
APPENDIX GHIGHORDER PERTURBATION THEORY
APPENDIX HPROOF OF THE LANDAUZENERSTÜCKELBERG FORMULA

9INTERACTION OF A SPIN WITH THE EXTERNAL WORLD AT LOW TEMPERATURE
10TUNNELLING BETWEEN EXCITED STATES
11COHERENCE AND DECOHERENCE
12DISORDER AND MAGNETIC TUNNELLING
13MORE EXPERIMENTS ON SINGLEMOLECULE MAGNETS
14OTHER MAGNETIC MOLECULES
15EMERGING TRENDS IN MOLECULAR NANOMAGNETISM
APPENDIX ITUNNELLING BETWEEN HYPERFINE STATES
APPENDIX JSPECIFIC HEAT
APPENDIX KMASTER EQUATION FOR THE DENSITY MATRIX
REFERENCES
INDEX
Copyright

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