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The iron pnictide superconductors : an introduction and overview /
This book covers different aspects of the physics of iron-based superconductors ranging from the theoretical, the numerical and computational, to the experimental ones. It starts from the basic theory modeling many-body physics in Fe-superconductors and other multi-orbital materials and drreaches up...
| Clasificación: | Libro Electrónico |
|---|---|
| Otros Autores: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Cham :
Springer,
2017.
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| Colección: | Springer series in solid-state sciences ;
v. 186. |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Preface; Contents; Contributors; 1 Iron Based Supercondutors: Introduction to the Volume; References; 2 Itinerant Magnetic Order and Multiorbital Effects in Iron-Based Superconductors; 2.1 Introduction; 2.2 A Primer: Spin Density Wave and Spin Waves in the Single-Band Hubbard Model; 2.3 Selection of Magnetic Order in the Parent Phase of Iron Based Superconductors; 2.3.1 Magnetic Frustration; 2.3.2 Lifting the Magnetic Ground State Degeneracy at TN; 2.4 Orbital Structure of Spin Density Wave State; 2.4.1 Transformation from Orbital to Band Basis; 2.4.2 Spin Density Wave Mean Field Equations.
- 2.4.3 Numerical Results2.5 Orbital Effects for the Superconducting State; 2.5.1 Leading Angular Harmonics Approximation; 2.5.2 Superconductivity with the Bare Interactions; 2.6 Spin Waves in Itinerant Multiorbital Systems; 2.6.1 Multiorbital Models
- Spin Wave Theory; 2.6.2 Itinerant Frustration and Accidental Zero Modes; 2.6.3 Two Orbital Model: Orbital Versus Excitonic Scenario; 2.6.4 Comparison to Experiments; 2.7 Discussion; References; 3 Nematic Order and Fluctuations in Iron-Based Superconductors; 3.1 Introduction; 3.1.1 In the Search for Nematic Phases.
- 3.1.2 The Ising Nematic State in Iron-Based Superconductors: Brief Introduction, Current State of the Art and Open Questions3.2 Summary of Collective Field Theories of Magnetism; 3.2.1 Hertz-Millis Theory of Magnetism; 3.2.2 Introducing the Large-N Approach; 3.3 Emergent Nematic Order in Iron Based Systems; 3.3.1 Heuristic Picture of the Spin-Driven Nematic Scenario; 3.3.2 Order-Parameter Theory of Stripe-density-wave Phase; 3.3.3 Ising-Nematic Order; 3.3.4 Sketch of the Phase Diagram; 3.4 Elastic Coupling and Spin-Driven Nematicity in Iron-Based Superconductors.
- 3.4.1 Elastic Theory of a Tetragonal System3.4.2 Model; 3.4.3 4 Theory of Nematic Degrees of Freedom; 3.4.4 Estimate of the Mean-Field Regime of Nematic Degrees of Freedom; 3.5 Physical Observables; 3.5.1 Softening of the Elastic Modulus in the Vicinity of the Nematic Transition; 3.5.2 Resistivity Anisotropy; 3.5.3 Raman Spectroscopy in the Tetragonal Phase; 3.5.4 Raman Resonance Mode in the Superconducting State; 3.5.5 Magnetic Spectrum; 3.6 Nematic Fluctuations and Pairing; References; 4 Modeling Many-Body Physics with Slave-Spin Mean-Field: Mott and Hund's Physics in Fe-Superconductors.
- 4.1 The Theoretical Description of Iron-Based Superconductors4.2 Strong Electronic Correlations; 4.2.1 The Band Theory of Solids: A Brief Reminder; 4.2.2 Electron
- Electron Interactions and Correlations; 4.2.3 The Mott Transition and Mott Insulators; 4.2.4 Fermi-Liquids and Effective Mass; 4.3 The Hubbard Model; 4.3.1 Complement: Single-Band Hubbard Model at Particle-Hole Symmetry; 4.3.2 Which Materials Are Likely to Be Strongly Correlated?; 4.4 Slave-Particle Approaches; 4.5 The Slave-Spin Formalism and Its Mean-Field; 4.5.1 Mean-Field Approximation.