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High-harmonic generation in semi-Dirac and Weyl semimetals with broken time-reversal symmetry: exploration of the merging of Weyl nodes
ID
Medic, Luka
(
Author
),
ID
Mravlje, Jernej
(
Author
),
ID
Ramšak, Anton
(
Author
),
ID
Rejec, Tomaž
(
Author
)
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https://journals.aps.org/prb/abstract/10.1103/PhysRevB.109.205130
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Abstract
We explore anomalous high-harmonic generation in a model that realizes a transition from a broken time-reversal symmetry Weyl semimetal to a semi-Dirac regime, i.e., a gapless semimetal with dispersion that is parabolic in one direction and conical in the other two. We point out the intensity of the induced anomalous high harmonics is high in the semi-Dirac regime. For Weyl semimetals, we reveal anomalous high harmonics are due to excitations at momenta where the dispersion is not strictly linear and that in the linearized low-energy theory the anomalous response is harmonic only. Our findings aid in the experimental characterizations of Weyl, Dirac, and semi-Dirac semimetals.
Language:
English
Keywords:
condensed matter physics
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FMF - Faculty of Mathematics and Physics
Publication status:
Published
Publication version:
Author Accepted Manuscript
Publication date:
13.05.2024
Year:
2024
Number of pages:
Str. 205130-1-205130-6
Numbering:
Vol. 109, iss. 20
PID:
20.500.12556/RUL-156340
UDC:
538.9
ISSN on article:
2469-9950
DOI:
10.1103/PhysRevB.109.205130
COBISS.SI-ID:
195400707
Publication date in RUL:
21.05.2024
Views:
177
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39
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Record is a part of a journal
Title:
Physical review
Publisher:
American Physical Society
ISSN:
2469-9950
COBISS.SI-ID:
2997348
Secondary language
Language:
Slovenian
Keywords:
fizika kondenzirane snovi
Projects
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
P1-0044-2022
Name:
Teorija trdnih snovi in statistična fizika
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
J2-2514-2020
Name:
Razvoj komponent za vzpostavitev nove evropske mreže za kvantno komunikacijo
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
J1-2458-2020
Name:
Tri izboljšave na poti do realističnega opisa transporta močno koreliranih elektronov
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