Creation and annihilation of mobile fractional solitons in atomic chains

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00556622" target="_blank" >RIV/68378271:_____/22:00556622 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0331075" target="_blank" >http://hdl.handle.net/11104/0331075</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41565-021-01042-8" target="_blank" >10.1038/s41565-021-01042-8</a>

Result language
angličtina
Original language name
Creation and annihilation of mobile fractional solitons in atomic chains
Original language description
Here we observe fractionalized phase defects moving along trimer silicon atomic chains formed along step edges of a vicinal silicon surface. By means of tunnelling microscopy, we identify local defects with phase shifts of 2π/3 and 4π/3 with their electronic states within the band gap and with their motions activated above 100 K. Theoretical calculations reveal the topological soliton origin of the phase defects with fractional charges of ±2e/3 and ±4e/3. Additionally, we create and annihilate individual solitons at desired locations by current pulses from the probe tip. Mobile and manipulable topological solitons may serve as robust, topologically protected information carriers in future information technology.
Czech name
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Czech description
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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.)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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