Imaging Orbital Vortex Lines in Three-Dimensional Momentum Space
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F25%3A43975979" target="_blank" >RIV/49777513:23640/25:43975979 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevX.15.011032" target="_blank" >https://doi.org/10.1103/PhysRevX.15.011032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevX.15.011032" target="_blank" >10.1103/PhysRevX.15.011032</a>
Alternative languages
Result language
angličtina
Original language name
Imaging Orbital Vortex Lines in Three-Dimensional Momentum Space
Original language description
We report the experimental discovery of orbital vortex lines in the three-dimensional (3D) band structure of a topological semimetal. Combining linear and circular dichroism in soft x-ray angle-resolved photoemission (SX-ARPES) with first-principles theory, we image the winding of atomic orbital angular momentum, thereby revealing—and determining the location of—lines of vorticity in full 3D momentum space. We determine the core of the orbital angular momentum vortex to host an almost movable, twofold, spin-degenerate Weyl nodal line, a topological feature predicted to occur in certain nonsymmorphic crystals. These results establish bimodal dichroism in SX-ARPES as a robust approach to trace 3D orbital textures. Our findings constitute the first imaging of nontrivial quantum-phase winding at line nodes and may pave the way to new orbitronic phenomena in quantum materials.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review X
ISSN
2160-3308
e-ISSN
2160-3308
Volume of the periodical
15
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
nestránkováno
UT code for WoS article
001444675500001
EID of the result in the Scopus database
2-s2.0-85217802104