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RESEARCH PRODUCT
Effects of pressure and of thermal history on the structural phase transition of KCN
K. KnorrF. SchmidtL. Grubersubject
chemistry.chemical_classificationMaterials scienceHydrostatic pressureThermodynamicsCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsCondensed Matter::Materials SciencePolymorphism (materials science)chemistryDiffusionless transformationX-ray crystallographyCondensed Matter::Strongly Correlated ElectronsGeneral Materials ScienceSingle crystalInorganic compoundMonoclinic crystal systemPhase diagramdescription
The cubic-noncubic structural phase transition of a KCN single crystal is studied as a function of thermal history and of hydrostatic pressure up to 2 kbar. The standard sequence of phases is cubic-monoclinic-orthorhombic on cooling and orthorhombic-cubic on heating. The monoclinic phase is also absent in first cooling runs at low pressures (p≦250 bar). The width of the monoclinic field inp, T phase diagram is increased in second cooling runs. The effects are discussed in terms of a martensitic transformation behavior and random strain fields.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-02-01 | Zeitschrift f�r Physik B Condensed Matter |