6533b81ffe1ef96bd1278669
RESEARCH PRODUCT
Formation of local spin-state concentration waves during the relaxation from photoinduced state in a spin-crossover polymer
Daopeng ZhangSerhane ZerdaneJosé Antonio RealPierre FerteyEric ColletFrancisco Javier Valverde-muñozElzbieta TrzopCéline Mariettesubject
Phase transitionSymmetry breaking 2Spin states02 engineering and technology010402 general chemistry01 natural sciencesSpin crossoverPhase (matter)Materials ChemistryOrganic chemistrySymmetry breakingPhase transitionThermal equilibriumAperiodicityChemistryScatteringMetals and Alloys021001 nanoscience & nanotechnologyAtomic and Molecular Physics and OpticsPhoto-crystallography0104 chemical sciencesElectronic Optical and Magnetic Materials[CHIM.POLY]Chemical Sciences/PolymersChemical physics[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Relaxation (physics)Condensed Matter::Strongly Correlated Electrons0210 nano-technologydescription
The complex relaxation from the photoinduced high-spin phase (PIHS) to the low-spin phase of the bimetallic two-dimensional coordination spin-crossover polymer [Fe[(Hg(SCN)3)2](4,4′-bipy)2]nis reported. During the thermal relaxation, commensurate and incommensurate spin-state concentration waves (SSCWs) form. However, contrary to the steps forming at thermal equilibrium, associated with long-range SSCW order, the SSCWs forming during the relaxation from the PIHS phase correspond to short-range order, revealed by diffuse X-ray scattering. This is interpreted as resulting from the competition between the two types of SSCW order and another structural symmetry breaking, due to ligand ordering, occurring at low temperature and precluding long-range SSCW order.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-08-01 |