First step towards a Devil´s staircase in spin-crossover materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00467711" target="_blank" >RIV/68378271:_____/16:00467711 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/anie.201602441" target="_blank" >https://doi.org/10.1002/anie.201602441</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/anie.201602441" target="_blank" >10.1002/anie.201602441</a>

Result language
angličtina
Original language name
First step towards a Devil´s staircase in spin-crossover materials
Original language description
The unprecedented bimetallic 2D coordination polymer {Fe[(Hg(SCN)3)2](4,4’-bipy)2}n exhibits a thermal high-spin (HS)$low-spin (LS) staircase-like conversion characterized by a multi-step dependence of the HS molar fraction γHS. Between the fully HS (γHS=1) and LS (γHS=0) phases, two steps associated with different ordering appear in terms of spin-state concentration waves (SSCW). On the γHS≈0.5 step, a periodic SSCW forms with a HS-LS-HS-LS sequence. On the γHS≈0.34 step, the 4D superspace crystallography structural refinement reveals an aperiodic SSCW, with a HS-LS sequence incommensurate with the molecular lattice. The formation of these different long-range spatially ordered structures of LS and HS states during the multi-step spin-crossover is discussed within the framework of "DevilÏs staircase"-type transitions.
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
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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