Disorder-induced time effect in the antiferromagnetic domain state of Fe1+yTe

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00546186" target="_blank" >RIV/68378271:_____/21:00546186 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10433380
Result on the web
<a href="https://doi.org/10.1016/j.jmmm.2021.168426" target="_blank" >https://doi.org/10.1016/j.jmmm.2021.168426</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmmm.2021.168426" target="_blank" >10.1016/j.jmmm.2021.168426</a>

Result language
angličtina
Original language name
Disorder-induced time effect in the antiferromagnetic domain state of Fe1+yTe
Original language description
We report on temperature-dependent soft X-ray absorption spectroscopy (XAS) measurements utilizing linearly polarized synchrotron radiation to probe magnetic phase transitions in iron-rich Fe1+yTe (y ≈ 0.12). X-ray magnetic linear dichroism (XMLD) signals, which sense magnetic ordering processes at surfaces, start to increase monotonically below the N´eel temperature TN = 57 K. This increase is due to a progressive bicollinear antiferromagnetic (AFM) alignment of Fe spins of the monoclinic Fe1+yTe parent phase. This AFM alignment was achieved by a [100]-oriented biasing field favoring a single-domain state during cooling across TN. Our specific heat and magnetization measurements confirm the bulk character of this AFM phase transition. On longer time scales, however, we observe that the field-biased AFM state is highly unstable even at the lowest temperature of T = 3 K. After switching off the biasing field, the XMLD signal decays exponentially with a time constant τ = 1506 s.
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
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/GA19-13659S" target="_blank" >GA19-13659S: Interfaces between Fe-Chalcogenide thin films and insulators: impact on structure, magnetism, and unconventional superconductivity</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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