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Pregled bibliografske jedinice broj: 1133965

Structural Behavior and Spin-State Features of BaAl2O4 Scaled through Tuned Co3+ Doping


Vrankić, Martina; Šarić, Ankica; Bosnar, Sanja; Barišić, Dario; Pajić, Damir; Lützenkirchen- Hecht, Dirk; Jelovica Badovinac, Ivana; Petravić, Mladen; Altomare, Angela; Rizzi, Rosanna; Klaser, Teodoro
Structural Behavior and Spin-State Features of BaAl2O4 Scaled through Tuned Co3+ Doping // Inorganic chemistry, 60 (2021), 12; 8475-8488 doi:10.1021/acs.inorgchem.0c03475 (međunarodna recenzija, članak, znanstveni)


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Naslov
Structural Behavior and Spin-State Features of BaAl2O4 Scaled through Tuned Co3+ Doping

Autori
Vrankić, Martina ; Šarić, Ankica ; Bosnar, Sanja ; Barišić, Dario ; Pajić, Damir ; Lützenkirchen- Hecht, Dirk ; Jelovica Badovinac, Ivana ; Petravić, Mladen ; Altomare, Angela ; Rizzi, Rosanna ; Klaser, Teodoro

Izvornik
Inorganic chemistry (0020-1669) 60 (2021), 12; 8475-8488

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

Ključne riječi
Doping ; Lattices ; Extended X-ray absorption fine structure ; Powder Diffraction ; Rietveld method ; Magnetization

Sažetak
Pure and Co3+-doped BaAl2O4 [Ba(Al1–xCox)2O4, x = 0, 0.0077, 0.0379] powder samples were prepared by a facile hydrothermal route. Elemental analyses by static secondary ion mass spectrometry (SIMS), X-ray absorption spectroscopy (XAS) measurements at the Co K- edge, and X-ray diffraction studies were fully correlated, thus addressing a complete description of the structural complexity of Co3+- doped BaAl2O4 powder. Powder X-ray diffraction (PXRD) patterns indicated that prepared samples were nanocrystalline with a hexagonal P63 symmetry. The X-ray absorption near-edge structure (XANES) measurements revealed the presence of cobalt in a +3 oxidation state, while the rarely documented, tetrahedral symmetry around Co3+ was extracted from the extended X-ray absorption fine structure (EXAFS) oscillation patterns. Rietveld structure refinements showed that Co3+ preferentially substitutes Al3+ at tetrahedral Al3 sites of the BaAl2O4 host lattice, whereas the (Al3)O4 tetrahedra remain rather regular with Co3+–O distances ranging from 1.73(9) to 1.74(9) Å. The underlying magneto- structural features were unraveled through axial and rhombic zero-field splitting (ZFS) terms. The increased substitution of Al3+ by Co3+ at Al3 sites leads to an increase of the axial ZFS terms in Co3+-doped BaAl2O4 powder from 10.8 to 26.3 K, whereas the rhombic ZFS parameters across the series change in the range from 2.7 to 10.4 K, showing a considerable increase of anisotropy together with the values of the anisotropic g- tensor components flowing from 1.7 to 2.5. We defined the line between the Co3+ doping limit and influenced magneto- structural characteristics, thus enabling the design of strategy to control the ZFS terms’ contributions to magnetic anisotropy within Co3+-doped BaAl2O4 powder.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb,
Sveučilište u Rijeci - Odjel za fiziku

Citiraj ovu publikaciju

Vrankić, Martina; Šarić, Ankica; Bosnar, Sanja; Barišić, Dario; Pajić, Damir; Lützenkirchen- Hecht, Dirk; Jelovica Badovinac, Ivana; Petravić, Mladen; Altomare, Angela; Rizzi, Rosanna; Klaser, Teodoro
Structural Behavior and Spin-State Features of BaAl2O4 Scaled through Tuned Co3+ Doping // Inorganic chemistry, 60 (2021), 12; 8475-8488 doi:10.1021/acs.inorgchem.0c03475 (međunarodna recenzija, članak, znanstveni)
Vrankić, M., Šarić, A., Bosnar, S., Barišić, D., Pajić, D., Lützenkirchen- Hecht, D., Jelovica Badovinac, I., Petravić, M., Altomare, A., Rizzi, R. & Klaser, T. (2021) Structural Behavior and Spin-State Features of BaAl2O4 Scaled through Tuned Co3+ Doping. Inorganic chemistry, 60 (12), 8475-8488 doi:10.1021/acs.inorgchem.0c03475.
@article{article, year = {2021}, pages = {8475-8488}, DOI = {10.1021/acs.inorgchem.0c03475}, keywords = {Doping, Lattices, Extended X-ray absorption fine structure, Powder Diffraction, Rietveld method, Magnetization}, journal = {Inorganic chemistry}, doi = {10.1021/acs.inorgchem.0c03475}, volume = {60}, number = {12}, issn = {0020-1669}, title = {Structural Behavior and Spin-State Features of BaAl2O4 Scaled through Tuned Co3+ Doping}, keyword = {Doping, Lattices, Extended X-ray absorption fine structure, Powder Diffraction, Rietveld method, Magnetization} }
@article{article, year = {2021}, pages = {8475-8488}, DOI = {10.1021/acs.inorgchem.0c03475}, keywords = {Doping, Lattices, Extended X-ray absorption fine structure, Powder Diffraction, Rietveld method, Magnetization}, journal = {Inorganic chemistry}, doi = {10.1021/acs.inorgchem.0c03475}, volume = {60}, number = {12}, issn = {0020-1669}, title = {Structural Behavior and Spin-State Features of BaAl2O4 Scaled through Tuned Co3+ Doping}, keyword = {Doping, Lattices, Extended X-ray absorption fine structure, Powder Diffraction, Rietveld method, Magnetization} }

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
  • MEDLINE


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