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RESEARCH PRODUCT
Single crystal-like thin films of blue bronze
Amra Salčinović FetićMatjaž SpreitzerDamir StarešinićTjaša Parkelj PotočnikJure DemsarKatica BiljakovićMaja ĐEkićMatej LozančićDamir DominkoVladimir GrigorevK. Hrvatsubject
010302 applied physicsPhase transitionMaterials scienceMetals and AlloysAnalytical chemistry02 engineering and technologySurfaces and Interfaces021001 nanoscience & nanotechnology01 natural sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsPulsed laser depositionBlue bronze (BB) ; Charge density waves (CDW) ; Thin films ; Single crystal-like ; Ultrafast pump-probe spectroscopyElectrical resistivity and conductivity0103 physical sciencesFemtosecondMaterials ChemistryThin film0210 nano-technologySpectroscopySingle crystalCharge density wavedescription
Abstract Pulsed laser deposition technique was employed to grow thin films of K 0.3 M o O 3 on A l 2 O 3 (1-102) and S r T i O 3 (510) substrates. Structural and imaging characterization revealed good quality films with well oriented grains of few microns in length. Both non-selective (transport) and order-selective (femtosecond pump-probe spectroscopy) probes revealed charge density wave properties that are very close to those of the single crystals. The films exhibit metal-semiconductor phase transition in resistivity, pump-probe data show phase transition at the same temperature as the single crystal and the threshold for the photo-induced phase transition is approximately the same as in single crystal. We compare the properties of films with grains differing by an order of magnitude in length.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-08-01 | Thin Solid Films |