Charge density waves in nanocrystalline thin films of blue bronze K<sub>0.3</sub>MoO<sub>3</sub>

Staresinic, Damir; Dominko, Damir; Salamon, Kresimir; Biljakovic, Katica; Tomeljak, Andrej; Schäfer, Hanjo; Huber, Tim; Demsar, Jure; Socol, Gabriel; Ristoscu, Carmen

Publikation:
Charge density waves in nanocrystalline thin films of blue bronze K_0.3MoO₃

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Datum

2012

Autor:innen

Staresinic, Damir

Dominko, Damir

Salamon, Kresimir

Biljakovic, Katica

Tomeljak, Andrej

Schäfer, Hanjo

Huber, Tim

Demsar, Jure

Socol, Gabriel

Ristoscu, Carmen

et al.

DOI (zitierfähiger Link)

https://doi.org/10.1016/j.physb.2012.01.056

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Physik: Publikationen

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Physica B: Condensed Matter. Elsevier. 2012, 407(11), pp. 1889-1893. ISSN 0921-4526. eISSN 1873-2135. Available under: doi: 10.1016/j.physb.2012.01.056

Zusammenfassung

Thin granular films of charge density wave (CDW) system K_0.3MoO₃ were prepared by pulsed laser deposition and investigated by various standard characterization methods such as GI-XRD, electric transport, TOF-ERDA, AFM and UV–visible spectroscopy. While all these methods indicate that the thin films consist of nanometer grains of K_0.3MoO₃, it is only the non-destructive femtosecond time-resolved spectroscopy (fsTRS) that demonstrates the charge density wave nature of the ground state and therefore proves directly the presence of K_0.3MoO₃. Furthermore, the comparison of the fsTRS data obtained in thin films and in single crystals shows the reduction of the charge density wave transition temperature and of the photoinduced signal strength in granular thin films with respect to single crystals, which is attributed to the granularity and crystal growth morphology. Our results establish fsTRS technique as the essential tool for the detection and characterization of complex ground states in nano-sized systems.

Fachgebiet (DDC)

530 Physik

Schlagwörter

Change density waves, Femtosecond time-resolved, Spectroscopy, Thin film, Nanoparticles

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ISO 690

STARESINIC, Damir, Damir DOMINKO, Kresimir SALAMON, Katica BILJAKOVIC, Andrej TOMELJAK, Hanjo SCHÄFER, Tim HUBER, Jure DEMSAR, Gabriel SOCOL, Carmen RISTOSCU, 2012. Charge density waves in nanocrystalline thin films of blue bronze K_0.3MoO₃. In: Physica B: Condensed Matter. Elsevier. 2012, 407(11), pp. 1889-1893. ISSN 0921-4526. eISSN 1873-2135. Available under: doi: 10.1016/j.physb.2012.01.056

BibTex

@article{Staresinic2012-06Charg-48609,
  year={2012},
  doi={10.1016/j.physb.2012.01.056},
  title={Charge density waves in nanocrystalline thin films of blue bronze K<sub>0.3</sub>MoO<sub>3</sub>},
  number={11},
  volume={407},
  issn={0921-4526},
  journal={Physica B: Condensed Matter},
  pages={1889--1893},
  author={Staresinic, Damir and Dominko, Damir and Salamon, Kresimir and Biljakovic, Katica and Tomeljak, Andrej and Schäfer, Hanjo and Huber, Tim and Demsar, Jure and Socol, Gabriel and Ristoscu, Carmen}
}

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Publikation: Charge density waves in nanocrystalline thin films of blue bronze K0.3MoO3

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Publikation:
Charge density waves in nanocrystalline thin films of blue bronze K_0.3MoO₃