期刊
CONTEMPORARY PHYSICS
卷 59, 期 2, 页码 126-144出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00107514.2017.1418046
关键词
Electrons; orbital angular momentum; quantum physics; nanophysics; matter waves and particle beams
资金
- Canada Research Chairs
- Canada Excellence Research Chairs, Government of Canada (CERC)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Max Planck-University of Ottawa Centre for Extreme and Quantum Photonics
- European Union's Horizon Research and Innovation Programme (Q-SORT) [766970]
- EPSRC [EP/M01326X/1] Funding Source: UKRI
Electrons have played a significant role in the development of many fields of physics during the last century. The interest surrounding them mostly involved their wave-like features prescribed by the quantum theory. In particular, these features correctly predict the behaviour of electrons in various physical systems including atoms, molecules, solid-state materials, and even in free space. Ten years ago, new breakthroughs were made, arising from the new ability to bestow orbital angular momentum (OAM) to the wave function of electrons. This quantity, in conjunction with the electron's charge, results in an additional magnetic property. Owing to these features, OAM-carrying, or twisted, electrons can effectively interact with magnetic fields in unprecedented ways and have motivated materials scientists to find new methods for generating twisted electrons and measuring their OAM content. Here, we provide an overview of such techniques along with an introduction to the exciting dynamics of twisted electrons.
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