Abstract
Orbitronics explores the control and manipulation of electronic orbital angular momentum in solid-state systems, opening new pathways for information processing and storage. One significant advantage of orbitronics over spintronics is that it does not rely on spin-orbit coupling, thereby broadening the range of non-magnetic materials that can be utilized for these applications. It also introduces new topological features related to electronic orbital angular momentum, and clarifies some long-standing challenges in understanding experiments that rely on the conventional concept of valley transport. This review highlights recent advances in orbitronics, particularly in relation to two-dimensional materials. We examine the fundamental principles underlying the generation, transport, and dynamics of orbital angular momentum to illustrate how the unique properties of two-dimensional materials can promote orbitronic phenomena. We also outline potential future research directions and address some outstanding questions in this field.
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Details
1 Instituto de Física, Universidade Federal Fluminense, Niterói RJ, Brazil (ROR: https://ror.org/02rjhbb08) (GRID: grid.411173.1) (ISNI: 0000 0001 2184 6919)
2 Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Barcelona, Spain (ROR: https://ror.org/00k1qja49) (GRID: grid.424584.b) (ISNI: 0000 0004 6475 7328)
3 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro-RJ, Brazil (ROR: https://ror.org/02wnmk332) (GRID: grid.418228.5) (ISNI: 0000 0004 0643 8134); Physics Center of Minho and Porto Universities (CF-UM-UP), Braga, Portugal (ROR: https://ror.org/043pwc612) (GRID: grid.5808.5) (ISNI: 0000 0001 1503 7226); International Iberian Nanotechnology Laboratory (INL), Braga, Portugal (ROR: https://ror.org/04dv3aq25) (GRID: grid.420330.6) (ISNI: 0000 0004 0521 6935)