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Pregled bibliografske jedinice broj: 1062758

Rational Sol-Gel-Based Synthesis Design and Magnetic, Dielectric and Optical Properties Study of Nanocrystalline Sr3Co2WO9 Triple Perovskite


Bijelic, Jelena; Stanković, Anamarija; Medvidović-Kosanović, Martina; Markovic, Berislav; Cop, Pascal; Sun, Yu; Hajra, Sugato; Sahu, Manisha; Vukmirovic, Jelena; Markovic, Dean et al.
Rational Sol-Gel-Based Synthesis Design and Magnetic, Dielectric and Optical Properties Study of Nanocrystalline Sr3Co2WO9 Triple Perovskite // The Journal of Physical Chemistry C, 124 (2020), 23; 12794-12807 doi:10.1021/acs.jpcc.0c02973 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1062758 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Rational Sol-Gel-Based Synthesis Design and Magnetic, Dielectric and Optical Properties Study of Nanocrystalline Sr3Co2WO9 Triple Perovskite

Autori
Bijelic, Jelena ; Stanković, Anamarija ; Medvidović-Kosanović, Martina ; Markovic, Berislav ; Cop, Pascal ; Sun, Yu ; Hajra, Sugato ; Sahu, Manisha ; Vukmirovic, Jelena ; Markovic, Dean ; Kukovecz, Ákos ; Jaglicic, Zvonko ; Smarsly, Bernd M. ; Djerdj, Igor

Izvornik
The Journal of Physical Chemistry C (1932-7447) 124 (2020), 23; 12794-12807

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
triple perovskite ; cobalt ; tungsten ; ferrimagnetic ; semiconductor

Sažetak
Complex perovskites have attracted extensive attention due to their fascinating physical properties and novel features owing to the coexistence of the ferro/ferri-magnetic ground state and semiconducting behavior in the single material. Herein, the triple perovskite Sr3Co2WO9 (SCWO) has been successfully synthesized for the first time in the nanocrystalline form with an average crystallite size of 23 nm using a high yield (81 %) aqueous citrate sol-gel method. At room temperature, the crystal structure of Sr3Co2WO9 is cubic, space group Fm-3m, with lattice parameter a= 7.9073(6) Å. The formation of SCWO triple perovskite was studied in situ by X-ray diffraction and subsequently analyzed by the Rietveld analysis. The detected hysteresis loops with non-zero remanent magnetization and rather large coercive field reveal ferrimagnetic ordering with a Curie temperature of 144 K. The measured effective magnetic moment of 3 μB is close to the expected value for rarely observed intermediate spin S = 1. It is found that the compound exhibits semiconducting properties with the optical band gaps equal to 3.52 eV (indirect) and 3.76 eV (direct), respectively, further confirmed by the determination of the AC conductivity, which in the measured temperature range (25 -500 °C at 1 kHz) lies within the interval from 10−5- 10−4 Ω−1 cm−1. The Maxwell -Wagner model is employed to describe the frequency dependent dielectric constant. The frequency-dependent AC conductivity follows the universal Jonscher’s power law. Since it possesses both magnetic and semiconductor properties, this material could be a promising candidate to use in devices where its semiconducting properties would be spin-controlled.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2016-06-3115 - Istraživanje složenih multiferoičnih materijala pripravljenih metodama otopinske kemije (SOLFERROMAT) (Đerđ, Igor, HRZZ)

Ustanove
Sveučilište u Osijeku - Odjel za kemiju,
Sveučilište u Rijeci - Odjel za biotehnologiju

Citiraj ovu publikaciju

Bijelic, Jelena; Stanković, Anamarija; Medvidović-Kosanović, Martina; Markovic, Berislav; Cop, Pascal; Sun, Yu; Hajra, Sugato; Sahu, Manisha; Vukmirovic, Jelena; Markovic, Dean et al.
Rational Sol-Gel-Based Synthesis Design and Magnetic, Dielectric and Optical Properties Study of Nanocrystalline Sr3Co2WO9 Triple Perovskite // The Journal of Physical Chemistry C, 124 (2020), 23; 12794-12807 doi:10.1021/acs.jpcc.0c02973 (međunarodna recenzija, članak, znanstveni)
Bijelic, J., Stanković, A., Medvidović-Kosanović, M., Markovic, B., Cop, P., Sun, Y., Hajra, S., Sahu, M., Vukmirovic, J. & Markovic, D. (2020) Rational Sol-Gel-Based Synthesis Design and Magnetic, Dielectric and Optical Properties Study of Nanocrystalline Sr3Co2WO9 Triple Perovskite. The Journal of Physical Chemistry C, 124 (23), 12794-12807 doi:10.1021/acs.jpcc.0c02973.
@article{article, year = {2020}, pages = {12794-12807}, DOI = {10.1021/acs.jpcc.0c02973}, keywords = {triple perovskite, cobalt, tungsten, ferrimagnetic, semiconductor}, journal = {The Journal of Physical Chemistry C}, doi = {10.1021/acs.jpcc.0c02973}, volume = {124}, number = {23}, issn = {1932-7447}, title = {Rational Sol-Gel-Based Synthesis Design and Magnetic, Dielectric and Optical Properties Study of Nanocrystalline Sr3Co2WO9 Triple Perovskite}, keyword = {triple perovskite, cobalt, tungsten, ferrimagnetic, semiconductor} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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