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The first reference on this rapidly growing topic provides an essential up-to-date guide to current and emerging trends.
A group of international experts has been carefully selected by the editors to cover all the central aspects, with a focus on molecular species while also including industrial applications.
The resulting unique overview is a must-have for researchers, both in academia and industry, who are entering or already working in the field.
Auteur
Richard Layfield is a Reader in Inorganic Chemistry at The University of Manchester, UK. He obtained his undergraduate degree in Chemistry at the University of Leeds, UK, and his PhD in Inorganic Chemistry at the University of Cambridge, UK. He has received several awards, including an Alexander von Humboldt Foundation Fellowship for Experienced Researchers, and the Royal Society of Chemistry Meldola Medal and the Sir Edward Frankland Fellowship.
Muralee Murugesu is an Associate Professor at the University of Ottawa, Canada. He studied Chemistry at the University of Paris 7 Jussieu, France. Afterwards he obtained his MSc in Chemistry at the University of East Anglia, UK, and PhD in Chemistry at the University of Karlsruhe, Germany. His first postdoctoral appointment was at University of Florida with Prof. George Christou, followed by a postdoctoral position working jointly between the University of California, Berkeley and the University of California, San Francisco under the supervision of Prof. Jeffrey Long and the Nobel Laureate Prof. Stanley Prusiner.
Texte du rabat
The advent of the first lanthanide single-molecule magnet resulted in a huge increase in activity in the field of f-element molecular magnetism. This book is the first reference work that summarizes the remarkable advances that have been made during the last decade.
A group of international experts has been carefully selected by the editors to cover all the central aspects, with a focus on molecular coordination complexes, while also including applications in nanoscale devices. It also contains essential up-to-date guides to current and emerging trends.
The resulting unique overview is a must-have for researchers, both in academia and industry, who are interested in the magnetic properties of lanthanide and actinide compounds.
Contenu
Preface XIII
List of Contributors XV
1 Electronic Structure and Magnetic Properties of Lanthanide Molecular Complexes 1
Lorenzo Sorace and Dante Gatteschi
1.1 Introduction 1
1.2 Free Ion Electronic Structure 3
1.2.1 Free Ion Magnetism 6
1.3 Electronic Structure of Lanthanide Ions in a Ligand Field 7
1.3.1 Stevens' Formalism 9
1.3.2 Wybourne's Formalism 9
1.3.3 Standardization 13
1.3.4 Calculation of Crystal Field Parameters 13
1.4 Magnetic Properties of Isolated Lanthanide Ions 16
1.4.1 Effect of a Magnetic Field 16
1.4.2 EPR Spectroscopy of Lanthanide Complexes 17
1.5 Exchange Coupling in Systems Containing Orbitally Degenerate Lanthanides 21
Acknowledgements 23
References 23
2 Mononuclear Lanthanide Complexes: Use of the Crystal Field Theory to Design Single-Ion Magnets and Spin Qubits 27
Juan M. Clemente-Juan, Eugenio Coronado, and Alejandro Gaita-Ari no
2.1 Introduction 27
2.2 Modelling the Magnetic Properties of Lanthanide Single-Ion Magnets:TheUse of the Crystal FieldModel 29
2.2.1 Theoretical Background 29
2.2.2 How to Determine the Crystal-Field Parameters: 1. The Ishikawa Approach 30
2.2.3 How to Determine the Crystal-Field Parameters: 2. The Point Charge Electrostatic Model 34
2.2.4 How to Determine the Crystal-Field Parameters: 3. The Effective Point Charge Model 36
2.3 Magneto-Structural Correlations for Some Typical Symmetries 40
2.4 Impact of Lanthanide Complexes in Quantum Computing 44
2.4.1 Quantum Computing Paradigms and Design Criteria 45
2.4.2 Combining Physical Qubit Implementations with Lanthanide Complexes 48
2.4.3 Molecular Spin Qubits 50
2.5 Conclusions 53
Acknowledgements 54
References 55
3 Polynuclear Lanthanide SingleMolecule Magnets 61
Jinkui Tang and Peng Zhang
3.1 Introduction 61
3.2 Synthetic Strategies 62
3.2.1 Dy3 Triangles and Their Derivatives 64
3.2.1.1 Seminal Dy3 Triangle 64
3.2.1.2 Other Triangular Dy3 Systems 65
3.2.1.3 The Coupling of Dy3 Triangles 68
3.2.2 Linear Polynuclear Lanthanide Complexes Showing Robust SMM Behaviour 71
3.2.2.1 Linear Dy3 SMMs 72
3.2.2.2 Linear Dy4 SMMs 73
3.2.3 Planar Dy4 SMMs 75
3.2.4 Dyn SMMs Having Multiple n-O (n > 4) Bridges 78
3.2.4.1 The Dy4 Grids Fixed by 4-O Atom 78
3.2.4.2 The Dy4 Tetrahedron Fixed by 4-O Atom 80
3.2.4.3 The Dy5 Pyramid Fixed by 5-O Atom 80
3.2.5 Hydrazone-Based Lanthanide SMMs 82
3.2.5.1 The Assembly of Dy6 Triangular Prism with Dy2 Units 83
3.2.5.2 A Dy3 Molecular Cluster Pair (Dy6) 84
3.2.6 The Organometallic SynthesisA New Approach 85
3.3 Conclusion 86
References 86
4 Lanthanides in Extended Molecular Networks 89
Roberta Sessoli and Kevin Bernot
4.1 Introduction 89
4.2 Extended Networks Based on Gd3+ 91
4.2.1 Metal-Organic Frameworks 91
4.2.1.1 Magneto-Caloric Effect 91
4.2.1.2 Slow Magnetic Relaxation and Phonon Bottleneck Effects 94
4.2.2 Magnetic Chains 96
4.2.2.1 Magnetic Interactions Involving Gd3+ Ions 96
4.2.2.2 Gadolinium-Radical Chains 96
4.3 Extended Networks Based on Anisotropic Ions 101
4.3.1 SCM in a Nutshell 101
4.3.2 An Overview of Monodimensional Lanthanide Chains Based on Anisotropic Ions 104
4.3.2.1 Chains Based on 4f Ions 104
4.3.2.2 Chains Based on 3d4f Ions 106
4.3.2.3 Chains Based on Radicals and 4f Ions 111
4.3.3 The Key Point of Noncollinearity of Magnetic Anisotropy 112
4.4 Conclusions 119
References 119
5 Experimental Aspects of Lanthanide Single-Molecule Magnet Physics 125
*Kasper S. Pedersen, Daniel N.Woodruff...