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Supraleitung und Magnetismus in starkkorrelierten Elektronensystemen

English title Superconductivity and magnetism in strongly correlated electron systems
Applicant Sigrist Manfred
Number 144248
Funding scheme Project funding (Div. I-III)
Research institution Institut für Theoretische Physik ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Theoretical Physics
Start/End 01.10.2012 - 30.09.2015
Approved amount 513'608.00
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All Disciplines (2)

Discipline
Theoretical Physics
Condensed Matter Physics

Keywords (6)

unconventional superconductivity; strongly correlated electron systems; non-centrosymmetric superconductors; heavy Fermion physics; condensed matter theory; heterostructures

Lay Summary (English)

Lead
Lay summary

This project is built upon the vision that materials with novel properties are of great importance for future scientific developments as well as technological applications. Implications of strong interactions among electrons are a the center of our studies as these are the cause of an immense variety of quantum materials' properties. In our  theoretical approach, we target unconventional superconductors in three major directions, concerned with (1) topological properties as in the chiral p-wave superconductor Sr2RuO4, (2) the interplay of superconductivity and magnetism as occurring in the so-called Q-phase of the heavy electron system CeCoIn5 and (3) the influence of spin-orbit coupling as found in metals lacking inversion symmetry. A further part of our project will explore the influence of electron correlation in inhomogeneous systems, in particular, artificially grown heterostructures and superlattices which could be recently fabricated with high atomic precision in transition metal oxides and heavy Fermion compounds. The issue of superconductivity found in the heterostructures SrTiO3/LaAlO3, tunable gate voltage, is again a topic because non-centrosymmetricity and topological aspects play an important role here too, as they do in the superlattices of CeCoIn5/YbCoIn5, alternating layers of heavy electron and usual metals. Moreover, the theoretical analysis of numerous possible phases as well as transport properties at interfaces in heterostructures are a further important goal of our studies, as they may have potential for future quantum materials design. 


Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
Dissipationless Multiferroic Magnonics
Chen Wei, Sigrist Manfred (2015), Dissipationless Multiferroic Magnonics, in Physical Review Letters, 114, 157203.
Evidence for Time-Reversal Symmetry Breaking of the Superconducting State near Twin-Boundary Interfaces in FeSe Revealed by Scanning Tunneling Spectroscopy
Watashige T., Tsutsumi Y., Hanaguri T., Kohsaka Y., Kasahara S., Furusaki A., Sigrist M., Meingast C., Wolf T., v Loehneysen H., Shibauchi T., Matsuda Y. (2015), Evidence for Time-Reversal Symmetry Breaking of the Superconducting State near Twin-Boundary Interfaces in FeSe Revealed by Scanning Tunneling Spectroscopy, in PHYSICAL REVIEW X, 5(3), 031022.
Evolution of the filamentary 3-Kelvin phase in Pb-Ru-Sr2RuO4 Josephson junctions
Kaneyasu Hirono, Etter Sarah B., Sakai Toru, Sigrist Manfred (2015), Evolution of the filamentary 3-Kelvin phase in Pb-Ru-Sr2RuO4 Josephson junctions, in PHYSICAL REVIEW B, 92(13), 134515.
Leggett Modes and the Anderson-Higgs Mechanism in Superconductors without Inversion Symmetry
Bittner Nikolaj, Einzel Dietrich, Klam Ludwig, Manske Dirk (2015), Leggett Modes and the Anderson-Higgs Mechanism in Superconductors without Inversion Symmetry, in PHYSICAL REVIEW LETTERS, 115, 227002.
Minimal Model of Spin-Transfer Torque and Spin Pumping Caused by the Spin Hall Effect
Chen Wei, Sigrist Manfred, Sinova Jairo, Manske Dirk (2015), Minimal Model of Spin-Transfer Torque and Spin Pumping Caused by the Spin Hall Effect, in PHYSICAL REVIEW LETTERS, 115(21), 217203.
Resonant scattering induced thermopower in one-dimensional disordered systems
Mueller Daniel, Smit Wilbert J, Sigrist Manfred (2015), Resonant scattering induced thermopower in one-dimensional disordered systems, in Physical Review B, 91, 205401.
Spontaneous currents in a superconductor with s plus is symmetry
Maiti Saurabh, Sigrist Manfred, Chubukov Andrey (2015), Spontaneous currents in a superconductor with s plus is symmetry, in PHYSICAL REVIEW B, 91(16), 161102.
Surface-State Spin Textures and Mirror Chern Numbers in Topological Kondo Insulators
Legner Markus, Rueegg Andreas, Sigrist Manfred (2015), Surface-State Spin Textures and Mirror Chern Numbers in Topological Kondo Insulators, in PHYSICAL REVIEW LETTERS, 115(15), 156405.
Topological Crystalline Superconductivity in Locally Noncentrosymmetric Multilayer Superconductors
Yoshida Tomohiro, Sigrist Manfred, Yanase Youichi (2015), Topological Crystalline Superconductivity in Locally Noncentrosymmetric Multilayer Superconductors, in PHYSICAL REVIEW LETTERS, 115(2), 027001.
Weyl semimetal from spontaneous inversion symmetry breaking in pyrochlore oxides
Bzdusek Tomas, Rueegg Andreas, Sigrist Manfred (2015), Weyl semimetal from spontaneous inversion symmetry breaking in pyrochlore oxides, in PHYSICAL REVIEW B, 91(16), 165105.
Chiral d-wave superconductivity in SrPtAs
Fischer Mark H., Neupert Titus, Platt Christian, Schnyder Andreas P., Hanke Werner, Goryo Jun, Thomale Ronny, Sigrist Manfred (2014), Chiral d-wave superconductivity in SrPtAs, in PHYSICAL REVIEW B, 89(2), 020509.
Current inversion at the edges of a chiral p-wave superconductor
Bouhon Adrien, Sigrist Manfred (2014), Current inversion at the edges of a chiral p-wave superconductor, in PHYSICAL REVIEW B, 90(22), 220511.
Effect of the RuO6 Octahedron Rotation at the Sr2RuO4 Surface on Topological Property
Imai Yoshiki, Wakabayashi Katsunori, Sigrist Manfred (2014), Effect of the RuO6 Octahedron Rotation at the Sr2RuO4 Surface on Topological Property, in JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(12), 124712.
Effect of the RuO6 Octahedron Rotation at the Sr2RuO4 Surface on Topological Property
Imai Yoshiki, Wakabayashi Katsunori, Sigrist Manfred (2014), Effect of the RuO6 Octahedron Rotation at the Sr2RuO4 Surface on Topological Property, in JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(12), 124712.
Electrical permittivity driven metal-insulator transition in heterostructures of nonpolar Mott and band insulators
Omori Yukiko, Rueegg Andreas, Sigrist Manfred (2014), Electrical permittivity driven metal-insulator transition in heterostructures of nonpolar Mott and band insulators, in PHYSICAL REVIEW B, 90(15), 155118.
Electrical permittivity driven metal-insulator transition in heterostructures of nonpolar Mott and band insulators
Omori Yukiko, Rueegg Andreas, Sigrist Manfred (2014), Electrical permittivity driven metal-insulator transition in heterostructures of nonpolar Mott and band insulators, in PHYSICAL REVIEW B, 90(15), 155118.
Ginzburg-Landau Description of Twin Boundaries in Noncentrosymmetric Superconductors
Achermann Michael, Neupert Titus, Arahata Emiko, Sigrist Manfred (2014), Ginzburg-Landau Description of Twin Boundaries in Noncentrosymmetric Superconductors, in JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(4), 044712.
Josephson effect and triplet-singlet ratio of noncentrosymmetric superconductors
Klam Ludwig, Epp Anthony, Chen Wei, Sigrist Manfred, Manske Dirk (2014), Josephson effect and triplet-singlet ratio of noncentrosymmetric superconductors, in PHYSICAL REVIEW B, 89(17), 174505.
Limiting mechanism for critical current in topologically frustrated Josephson junctions
Etter Sarah B., Kaneyasu Hirono, Ossadnik Matthias, Sigrist Manfred (2014), Limiting mechanism for critical current in topologically frustrated Josephson junctions, in PHYSICAL REVIEW B, 90(2), 024515.
Parity-Mixed Superconductivity in Locally Non-centrosymmetric System
Yoshida Tomohiro, Sigrist Manfred, Yanase Youichi (2014), Parity-Mixed Superconductivity in Locally Non-centrosymmetric System, in JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(1), 013703.
Quantum transport signatures of chiral edge states in Sr2RuO4
Tiwari Rakesh P., Belzig W., Sigrist Manfred, Bruder C. (2014), Quantum transport signatures of chiral edge states in Sr2RuO4, in PHYSICAL REVIEW B, 89(18), 184512.
Signatures of the helical phase in the critical fields at twin boundaries of noncentrosymmetric superconductors
Aoyama Kazushi, Savary Lucile, Sigrist Manfred (2014), Signatures of the helical phase in the critical fields at twin boundaries of noncentrosymmetric superconductors, in PHYSICAL REVIEW B, 89(17), 174518.
Spin superfluidity in coplanar multiferroics
Chen Wei, Sigrist Manfred (2014), Spin superfluidity in coplanar multiferroics, in PHYSICAL REVIEW B, 89(2), 024511.
Superconductors with Staggered Non-centrosymmetricity
Sigrist Manfred, Agterberg Daniel F., Fischer Mark H., Goryo Jun, Loder Florian, Rhim Sung-Hyon, Maruyama Daisuke, Yanase Youichi, Yoshida Tomohiro, Youn Suk Joo (2014), Superconductors with Staggered Non-centrosymmetricity, in JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(6), 061014.
Topological invariants, surface states, and interaction-driven phase transitions in correlated Kondo insulators with cubic symmetry
Legner Markus, Rueegg Andreas, Sigrist Manfred (2014), Topological invariants, surface states, and interaction-driven phase transitions in correlated Kondo insulators with cubic symmetry, in PHYSICAL REVIEW B, 89(8), 085110.
Complex-Stripe Phases Induced by Staggered Rashba Spin-Orbit Coupling
Yoshida Tomohiro, Sigrist Manfred, Yanase Youichi (2013), Complex-Stripe Phases Induced by Staggered Rashba Spin-Orbit Coupling, in JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82(7), 074714.
Evidence for superconductivity with broken time-reversal symmetry in locally noncentrosymmetric SrPtAs
Biswas P. K., Luetkens H., Neupert T., Stuerzer T., Baines C., Pascua G., Schnyder A. P., Fischer M. H., Goryo J., Lees M. R., Maeter H., Brueckner F., Klauss H. -H., Nicklas M., Baker P. J., Hillier A. D., Sigrist M., Amato A., Johrendt D. (2013), Evidence for superconductivity with broken time-reversal symmetry in locally noncentrosymmetric SrPtAs, in PHYSICAL REVIEW B, 87(18), 180503.
Numerical study of charge transport of overdoped La2-xSrxCuO4 within semiclassical Boltzmann transport theory
Buhmann Jonathan M., Ossadnik Matthias, Rice T. M., Sigrist Manfred (2013), Numerical study of charge transport of overdoped La2-xSrxCuO4 within semiclassical Boltzmann transport theory, in PHYSICAL REVIEW B, 87(3), 035129.
Proximity effects in a topological-insulator/Mott-insulator heterostructure
Ueda Suguru, Kawakami Norio, Sigrist Manfred (2013), Proximity effects in a topological-insulator/Mott-insulator heterostructure, in PHYSICAL REVIEW B, 87(16), 161108.
Spin currents and spontaneous magnetization at twin boundaries of noncentrosymmetric superconductors
Arahata Emiko, Neupert Titus, Sigrist Manfred (2013), Spin currents and spontaneous magnetization at twin boundaries of noncentrosymmetric superconductors, in PHYSICAL REVIEW B, 87(22), 220504.
Spin-Orbit Coupling in Multilayer Superconductors with Charge Imbalance
Maruyama Daisuke, Sigrist Manfred, Yanase Youichi (2013), Spin-Orbit Coupling in Multilayer Superconductors with Charge Imbalance, in JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82(4), 043703.
Thermoelectric effect of correlated metals: Band-structure effects and the breakdown of Mott's formula
Buhmann Jonathan M., Sigrist Manfred (2013), Thermoelectric effect of correlated metals: Band-structure effects and the breakdown of Mott's formula, in PHYSICAL REVIEW B, 88(11), 115128.
Topological and edge state properties of a three-band model for Sr2RuO4
Imai Yoshiki, Wakabayashi Katsunori, Sigrist Manfred (2013), Topological and edge state properties of a three-band model for Sr2RuO4, in PHYSICAL REVIEW B, 88(14), 144503.
Model for Magnetic Flux Patterns Induced by the Influence of In-Plane Magnetic Fields on Spatially Inhomogeneous Superconducting Interfaces of LaAlO3-SrTiO3 Bilayers
Aoyama Kazushi, Sigrist Manfred (2012), Model for Magnetic Flux Patterns Induced by the Influence of In-Plane Magnetic Fields on Spatially Inhomogeneous Superconducting Interfaces of LaAlO3-SrTiO3 Bilayers, in PHYSICAL REVIEW LETTERS, 109(23), 237007.
Pair-density wave states through spin-orbit coupling in multilayer superconductors
Yoshida Tomohiro, Sigrist Manfred, Yanase Youichi (2012), Pair-density wave states through spin-orbit coupling in multilayer superconductors, in PHYSICAL REVIEW B, 86(13), 134514.

Collaboration

Group / person Country
Types of collaboration
Prof. Youichi Yanase Japan (Asia)
- Publication
Dr. Yoshiki Imai Japan (Asia)
- Publication
Prof. Yoshiteru Maeno Japan (Asia)
- Publication
Prof. Jun Goryo Japan (Asia)
- Publication
Prof. Andrey Chubukov United States of America (North America)
- Publication
Prof. Ying Liu United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
Prof. Yuji Matsuda Japan (Asia)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Prof. Norio Kawakami Japan (Asia)
- Publication
Dr. Michel Kenzelmann Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Prof. Ronny Thomale Germany (Europe)
- Publication
Dr. Dirk Manske Germany (Europe)
- Publication
Prof. Kazushi Aoyama Japan (Asia)
- Publication
Prof. Daniel F. Agterberg United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Prof. Jean-Marc Triscone Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Strongly Correlated Topological Insulators: SmB6 and Beyond Talk given at a conference Surface-state spin textures and mirror Chern numbers in topological Kondo insulators 02.06.2015 Ann Arbor, United States of America Legner Markus;
Colloquium at Würzburg University Individual talk Unconventional Superconductivity - A matter of Symmetry and Topology 29.05.2015 Würzburg, Germany Sigrist Manfred;
Symposium on Strongly Correlated Electron Systems Talk given at a conference Unconventional Superconductivity - A complex Story with many Twists 09.05.2015 Tokyo, Japan Sigrist Manfred;
Trends in the Theory of Correlated Materials 2014 Talk given at a conference Topological phases and surface states in a cubic Kondo insulator 05.10.2014 Tokyo, Japan Legner Markus;
Trends in the Theory of Correlated Materials 2014 Talk given at a conference Doping induced band shifts and Lifshitz transitions in heavy-fermion metals 05.10.2014 Tokyo, Japan Benlagra Adel;
IRONIC - Strong Correlations and Unconventional Superconductivity Talk given at a conference Artificially Structured Superconductors - Loops, Boundaries and Interfaces 22.09.2014 Santa Barbara, United States of America Sigrist Manfred;
Seminar at Tohoku University Individual talk Aspects of non-centrosymmetricity and topology in novel superconductors 24.07.2014 Sendai, Japan Sigrist Manfred;
International Conference MultiSuper 2014 Talk given at a conference True and nearly Multi-Component Superconductors 24.06.2014 Camerino, Italy Sigrist Manfred;
ERC Mini-Workshop on Topological Kondo Insulators Talk given at a conference opological phases and surface states in a cubic Kondo insulator 16.06.2014 Würzburg, Germany Legner Markus;
MaP Graduate Symposium 2014 Poster Limiting mechanism for critical current in topologically frustrated Josephson junctions 05.06.2014 Zürich, Switzerland Etter Sarah;
ICTP-ECAR Inauguration Conference, Talk given at a conference From Superfluid 3He to Topological Superconductors 05.05.2014 Izmir, Turkey Sigrist Manfred;
Theory Winter School on "Topological Phases of Condensed Matter" Poster Topological phases and correlation effects in a cubic Kondo insulator 06.01.2014 Tallahassee, United States of America Legner Markus;
Trends in the Theory of Correlated Materials 2013 Talk given at a conference Finite Temperature spectra and quasiparticle interferences in Kondo lattices: from light electrons to heavy quasiparticles 02.10.2013 Lausanne, Switzerland Benlagra Adel;
The International Conference on Strongly Correlated Electron Systems 2013 Talk given at a conference Superconductors with staggered non-centrosymmetricity 05.08.2013 Tokyo, Japan Sigrist Manfred;
The International Conference on Strongly Correlated Electron Systems 2013 Poster Doping-induced band shifts and Lifshitz transitions in heavy-fermion metals 03.08.2013 Tokyo, Japan Benlagra Adel;
Spin Orbit Entanglement: Exotic States of Quantum Matter in Electronic Systems Poster The entanglement spectrum for a translationally invariant bipartitioning and its relation to quantum geometry 22.07.2013 Dresden, Germany Legner Markus;
SPS Annual Meeting 2014 Poster Limiting mechanism for critical current in topologically frustrated Josephson junctions 30.06.2013 Fribourg, Switzerland Etter Sarah;
Swiss Workshop on Materials with Novel Electronic Properties Poster The entanglement spectrum for a translationally invariant bipartitioning and its relation to quantum geometry 24.06.2013 Les Diablerets, Switzerland Legner Markus;
Swiss Workshop on Materials with Novel Electronic Properties Talk given at a conference Novel Superconductors from a MaNEP perspective 24.06.2013 Les Diablerets, Switzerland Sigrist Manfred;
Swiss Workshop on Materials with Novel Electronic Properties Poster Finite Temperature spectra and quasiparticle interferences in Kondo lattices: from light electrons to heavy quasiparticles 24.06.2013 Les Diablerets, Switzerland Benlagra Adel;
Gordon Research Conference (GRC) on Superconductivity Poster Topologically frustrated Josephson junctions in chiral superconductors 11.05.2013 Les Diablerets, Switzerland Etter Sarah;
Seminar at Kyoto University Individual talk New features of broken time reversal symmetry in unconventional superconductors 15.02.2013 Kyoto, Japan Sigrist Manfred;
Global Center of Excellence Conference Talk given at a conference Exotic Superconductors - a Matter of Symmetry and Topology 12.02.2013 Kyoto, Japan Sigrist Manfred;
International Workshop on Topological quantum matters, strongly correlated electrons, and quantum information Talk given at a conference Sr2RuO4 and CePt3Si - some features of topological superconductors 10.01.2013 Shanghai, China Sigrist Manfred;
Seminar at CEA Grenoble Individual talk Aspects of Topology and Symmetry in Unconventional Superconductors 31.10.2012 Grenoble, France Sigrist Manfred;
International Workshop on ”Correlated Electrons at Surfaces and Interfaces” (FOR 1162) Talk given at a conference Transport und magnetic properties of heterostructures with strong electron correlations 01.10.2012 Würzburg, Germany Sigrist Manfred;


Awards

Title Year
EPL poster prize at the annual Swiss Physical Society meeting 2014 2014

Associated projects

Number Title Start Funding scheme
163186 Supraleitung und Magnetismus in starkkorrelierten Elektronensystemen 01.10.2015 Project funding (Div. I-III)
131809 Research in Theoretical, Mathematical and Computational Physics 01.10.2010 Project funding (Div. I-III)
126459 Supraleitung und Magnetismus in starkkorrelierten Elektronensystemen 01.10.2009 Project funding (Div. I-III)
163186 Supraleitung und Magnetismus in starkkorrelierten Elektronensystemen 01.10.2015 Project funding (Div. I-III)
136299 Thermoeletric oxides TEO 01.11.2011 Sinergia

Abstract

Strongly interacting electrons are responsible for a nearly unlimited variety of intriguing states of matter. This project targets a number of open questions which are to a large part concerned with low-temperature phases, mainly unconventional superconductivity and complex states of localized or itinerant electrons in metals and insulators.I. Unconventional superconductivity: This project addresses several classes of unconventional superconductors. Recent experiments show unusual features in the superconductor Sr2RuO4 which are most likely of topological nature, resulting from the chiral p-wave symmetry of the Cooper pairing state. These are the anomalous Josephson effect between Pb and Sr2RuO4 connected via Ru-metal inclusions and the observation of half-quantized vortices in mesoscopic loops. The heavy Fermion superconductor CeCoIn5 shows an unusual low-temperature high-magnetic field phase within the superconducting phase diagram characterized by the coexistence between superconductivity and incommensurate magnetism, the so-called Q-phase. Moreover, the field of superconductivity in non-centrosymmetric materials has been extended recently towards new classes of materials besides the Ce-based heavy Fermion compounds, including superconductors with so-called locally non-centrosymmetric structures which could also have important implications for a other classes of superconductors such as doped topological insulators, pnictide and cuprate superconductors.II. Systems with strongly correlated electrons: The number of artificially structured systems of transition metal oxides is rising at a fast pace. This yields the basis for numerous new electronic phases and unusual transport properties. Most prominent is here the field-tunable superconducting phase at SrTiO3/LaAlO3 interfaces which apparently coexists with ferromagnetism. This has been recently joined by artificially structured CeCoIn5/YbCoIn5 superlattices which show surprising superconducting properties. Here new concepts concerning superconductivity and other electronic phases have to be developed. Interesting are questions concerning non-centrosymmetricity of interfaces and the combination of various ordered and disordered phases.Our project targets important questions on these subjects which in many cases are discussed in close collaboration with the relevant experimental research groups.
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