Browsing by Author "22ee096bd082f17b2010597d02ef9ca0"

Now showing items 1-8 of 8

    • Elementary band representations for the single-particle Green's function of interacting topological insulators 

      Lessnich, Dominik; M. Winter, Stephen; Iraola, Mikel; G. Vergniory, Maia; Valentí, Roser (American Physical Society, 2021)

    • Fractional corner charges in spin-orbit coupled crystals 

      Schindler, Frank; Brzezińska, Marta; Benalcazar, Wladimir; Iraola, Mikel; Bouhon, Adrien; Tsirkin, Stepan S.; Vergniory, Maia G.; Neupert, Titus (American Physical Society, 2019)
      We study two-dimensional spinful insulating phases of matter that are protected by time-reversal and crystalline symmetries. To characterize these phases, we employ the concept of corner charge fractionalization: corners ...

    • Interacting topological quantum chemistry of Mott atomic limits 

      Soldini, Martina O.; Astrakhantsev, Nikita; Iraola, Mikel; Tiwari, Apoorv; Fischer, Mark H.; Valentí, Roser; Vergniory, Maia G.; Wagner, Glenn; Neupert, Titus (American Physical Society, 2023)
      Topological quantum chemistry (TQC) is a successful framework for identifying (noninteracting) topological materials. Based on the symmetry eigenvalues of Bloch eigenstates at maximal momenta, which are attainable from ...

    • IrRep: Symmetry eigenvalues and irreducible representations of ab initio band structures 

      Iraola, Mikel; Mañes, Juan Luis; Bradlyn, Barry; Horton, Matthew K.; Neupert, Titus; García Vergniory, Maia; Tsirkin, Stepan S. (Elsevier, 2021)
      We present IrRep – a Python code that calculates the symmetry eigenvalues of electronic Bloch states in crystalline solids and the irreducible representations under which they transform. As input it receives bandstructures ...

    • Lecture notes on Berry phases and topology 

      Bradlyn, Barry; Iraola, Mikel (SciPost Foundation, 2022)
      In these notes, we review the role of Berry phases and topology in noninteracting electron systems. Topics including the adiabatic theorem, parallel transport, and Wannier functions are reviewed, with a focus on the ...

    • Orbital Ingredients and Persistent Dirac Surface State for the Topological Band Structure in FeTe0.55⁢Se0.45 

      Li, Y. F.; Chen, Su-Di; García Díez, Mikel; Iraola, Mikel; Pfau, Heike; Zhu, Y. L.; Mao, Z.Q.; Chen, T.; Yi, M.; Dai, P. C.; Sobota, Jonathan A.; Hashimoto, M.; Vergniory, M.G.; Lu, D.H.; Shen, Z. X. (APS, 2024)
      FeTe0.55Se0.45 (FTS) occupies a special spot in modern condensed matter physics at the intersections of electron correlation, topology, and unconventional superconductivity. The bulk electronic structure of FTS is predicted ...

    • Topology of SmB6 revisited by means of topological quantum chemistry 

      Iraola, Mikel; Robredo, Iñigo; Reupert, Titus; Mañes, Juan L.; Valentí, Roser; G. Vergniory, Maia (American Physical Society, 2024)
      The mixed-valence compound SmB6 with partially filled samarium 4f flat bands hybridizing with 5d conduction bands is a paramount example of a correlated topological heavy-fermion system. In this study, we revisit the ...

    • Towards a topological quantum chemistry description of correlated systems: The case of the Hubbard diamond chain 

      Iraola, Mikel; Heinsdorf, Niclas; Tiwari, Apoorv; Lessnich, Dominik; Mertz, Thomas; Ferrari, Francesco; Fischer, Mark H.; Winter, Stephen M; Pollmann, Frank; Neupert, Titus; Valentí, Roser; Vergniory, Maia G. (American Physical Society, 2021)
      The recently introduced topological quantum chemistry (TQC) framework has provided a description of universal topological properties of all possible band insulators in all space groups based on crystalline unitary symmetries ...