Description
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 reaches up to the magnetic and Cooper pair fluctuations and nematic order. Finally, it offers a comprehensive overview of the most recent advancements in the experimental investigations of iron based superconductors. CURRICULUM VITAE Ferdinando Mancini Ferdinando Mancini is Professor Emeritus of Structure of Matter of the Department of Physics, University of Salerno (Italy), and President of the “International Institute for Advanced Scientific Studies”. During his very long career he has matured professional experience in Quantum Field Theory, Statistical Mechanics and Condensed Matter Physics focusing on Highly Correlated Systems, Superconductivity, Ferromagnetism and Heavy-Fermion Systems. After graduating in Physics at Naples University in 1966, he completed his Ph.D in Physics in 1971 at the University of Wisconsin-Milwaukee (USA). After his graduation, from 1971 to 1997, he visited numerous international institutions as a Visiting Scientist. Among these we find: the Dept. of Physics, Hyderabad University (India); the Dept. of Physics, Tohoku University (Sendai, Japan); the Dept. of Physics, Alberta University (Canada); the Dept. of Physics, Wisc onsin-Milwaukee University (USA). During his career he has covered many positions: (1980 – 2011) Full professor of Structure of Matter, University of Salerno; (1/11/1976 – 31/10/1980) Associated Professor, University of Salerno; (1/11/1972 – 31/10/1976) Assistant Professor, University of Salerno; (1/11/1971- 31/10/1972) Assistant Professor of Physics II, University of Naples; (1/11/1968 – 31/10/1971) Research Assistant, University of Wisconsin-Milwaukee, USA; (1966 – 1968) Fellowship, Istituto di Fisica Teorica, University of Naples. Prof. Mancini has been Chairman of the Department of Physics from 01.01.84 to 31.10.89 and from 01.01.01 to 31.12.06, Member of the Board of Governors of the University of Salerno from 01.01.84 to 31.10.98, President of the University Scientific Commission from 19.01.88 to 12.06.92, President of the Undergraduate Board in Physics from 01.11.89 to 12.09.93. Prof. Mancini has carried out many National and International Scientific Collaborations: He was delegate for Italy in the “Management Committee” of the COST Action P 16 “Emergent Behaviour 3=”” scientific=”” events=”” among=”” which:=”” training=”” courses,=”” conferences,=”” symposiums=”” meetings. CURRICULUM VITAE Citro RobertaDr. Roberta Citro is an Associate Professor at the Department of Physics of the University of Salerno (Italy). In recent years she has matured professional experience in many-body techniques of low-dimensional systems and in quantum transport in nanostructures. She has recently established a new research team/activity on quantum transport in low dimensional systems. She completed her Ph.D in Physics at the University of Salerno (Italy) in 1998 defending a thesis on high-temperature superconductors. After her graduation, she was, first, a Post Doc Fulbright fellow at the Physics Department of Rutgers University (New Jersey, USA) where she collaborated with the Condensed Matter theory group, completing original works on the puzzling phase diagram of coupled spin chains by means of bosonizations and renormalization group methods. In 2007 she was a Marie Curie fellow under the EU’s Sixth Framework Programme – Mobility Action at the Laboratoire de Physique et Modlisation des Milieux Condenss (LPMMC, CNRS) in Grenoble (FR) where she collaborated with Dr. Anna Minguzzi and Prof. Frank Hekking. Here she acquired knowledge in the field of atomic and molecular systems, working on the problem of non-equilibrium dynamics of a Bose gas subjected to a time-dependent perturbation. She has an active synergetic activity (Member of the organizing committees of five international conferences on quantum gases and a national meeting in superconductivity, member of the Doctorate collegium, referee of the APS and IOP Journals, of Nature and of national/EU research projects). Dr. Ro berta Citro is author of 125 articles published in international peer-reviewed journals (1 Rev. Mod. Phys., 4 Phys. Rev. Lett., 6 Rapid Communications, 3 Eur. Phys. Lett. and APL, 43 among Physical Review B and A). She has h-index 18 (from ISI web) and the total number of citations is more than one thousand. She has one book as co-editor published by the American Institute of Physics “Highlights in Condensed Matter Physics” (2003); she is co-editor of a topical issue of the European Physical Journal B entitle “Novel Quantum Phases and Mesoscopic Physics in Quantum Gases”, vol. 68 (2009) and of the volume European Physical Journal ST , vol 217 pags. 1-220 (2013). She has delivered thirty-two invited oral contributions at international conferences. Prizes/awards: Italian Physical Society Award (1998) and Fulbright Award (1999). 1. “Fe based Superconductors: Materials, phase diagrams, and spectroscopy” (i) Overview on Materials and General Phase Diagrams of Fe based Superconductors (ii) Low energy probes of the physical properties of Fe based superconductors (iii) Electron spectroscopy on Fe based superconductors (iv) Aspects of STM on Fe based superconductors (v) Experimental Studies of Nematic Order in Fe based SC written by Prof. Dr. Bernd Bchner Institute for Solid State Research Helmholtzstrae 20 01171 Dresden, Germany 2. “Modeling many-body physics in Fe-superconductors and other multi-orbital materials with the Slave-Spin mean-field: Mott and Hund’s physics” (i) Interactions and correlations. Single-particle vs many-body physics. Chemistry of correlated materials. (ii) Introduction to the Slave-spin method. Auxiliary variables. Mean-field decoupling written by Prof. Massimo Capone Scuola Internazionale Superiore di Studi Avanzati via Bonomea, 265 Trieste ITALY Dr. Luca de’ Medici European Synchrotron Radiation Facility (ESRF) Grenoble, France 3. “Cooper-pairing, magnetic frustration, and spin fluctuations in iron-based superconductors” (i) Leading instabilities in ferropnictides: weak-coupling analysis, RPA and renormalization group study, comparison to cuprates. (ii) Magnetic order: manifold of the ground states, C2 and C4 phases, selection of the magnetic states, role of spin orbit coupling. (ii i) Spin excitations in the magnetic state within itinerant description: magnetic anisotropy of the excitations, coexistence with the superconducting state. (iv) SC state: multiband effects beyond simple s+- (nodal structure, role of additional hole pockets with difference orbital structure), role of ‘simple’ disorder on Tc, quasiparticle interference. written by Prof. Dr. Ilya Eremin Ruhr-Universitt Bochum Universittstrae 150 44801 Bochum, Germany 4. ” Nematic order and fluctuations in iron based superconductors” (i) Summary of collective field theories of magnetism a) Order-parameter field theory from a microscopic Hamiltonian b) Solution of the field theory (introduction to the large-N approach) (ii) Emergent nematic order in iron based systems a) Order-parameter theory of stripe magnetic order b) Analysis of the large-N limit and Isin g-nematicity (iii) Phase diagram and observables I a) Analysis of the phase diagram b) Nematic susceptibility and elastic properties (iv) Phase diagram and observables II a) Anisotropy of the resistivity b) Raman scattering and nematic susceptibility (v) Impact on superconductivity a) Raman resonance mode in the superconducting state b) Nematic fluctuations and pairing. written by Prof. Dr. Jrg Schmalian Karlsruhe Institut fr Technologie Wolfgang-Gaede-Str. 1 D-76131 Karlsruhe, Germany
