Souza, Ivo
professor
Physical Chemistry
Material Physics Center
Spain
Biography
SOUZA, IVO is Research Professor in Centro de Física de Materiales, Universidad del País Vasco Ikerbasque Foundation.
Research Interest
I am a condensed-matter physicist using theoretical and computational tools to study the properties of materials from first-principles ("ab initio"). My work often involves the development of novel theoretical formulations and algorithms, and their application to interesting materials. I have introduced methods to study insulators in finite electric fields, and to construct localized Wannier orbitals for metals. Currently I am studying the ground-state and transport phenomena that arise from broken symmetries such as time reversal (magnetic order) and spatial inversion. Examples include the anomalous Hall effect and orbital magnetization in ferromagnetic metals, the valley Hall effect in transition-metal dichalcogenides, and magnetoelectric effects in topological insulators, magnetic oxides, and gyrotropic metals. A recurring theme in my research is the use of geometric phases and related concepts (Berry curvature, Chern number, intrinsic orbital moment) to describe the electronic properties of solids.
Publications
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Surface theorem for the Chern-Simons axion coupling Thomas Olsen, Maryam Taherinejad, David Vanderbilt, and Ivo Souza Phys. Rev. B 95 075137 (2017)
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Composite Weyl nodes stabilized by screw symmetry with and without time-reversal invariance Stepan S. Tsirkin, Ivo Souza, and David Vanderbilt Phys. Rev. B 96 045102 (2017)
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Gyrotropic effects in trigonal tellurium studied from first principles Stepan S. Tsirkin, Pablo Aguado Puente, and Ivo Souza
