Lowering the growth temperature of strongly-correlated YbFe2O4 thin films prepared by pulsed laser deposition

Kashimoto, Ryo; Yoshimura, Takeshi; Ashida, Atsushi; Fujimura, Norifumi

doi:10.1016/j.tsf.2016.04.044

Cited by 12 publications

(16 citation statements)

References 22 publications

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“…A good crystallographic orientation of f = 0.80 is achieved for the film heat treated at 900 • C. By the way, epitaxial RFe 2 O 4 films grown by MBE 7 and PLD 5,[8][9][10] techniques showed the perfect (001)-orientation. It is worth to mention that the highly (001)-orientation of spin coated films is nearly comparable to that of MBE and PLD films.…”

Section: Resultsmentioning

confidence: 83%

“…However, compared with the large amount of effort devoted to investigate bulk RFe 2 O 4 , there are only a small number of studies attempting to grow thin films. [5][6][7][8][9][10] Only one group has succeeded in fabricating well-defined and single-crystalline LuFe 2 O 4 films using the molecular-beam epitaxy (MBE) technique. 7 And very recently, single-crystalline growth of YbFe 2 O 4 films on yttria-stabilized zirconia (YSZ) (111) substrates was achieved by pulsed-laser deposition (PLD).…”

Section: -2mentioning

confidence: 99%

“…11 The aqueousbased process has several advantages, such as operation under ambient atmosphere, homogeneous mixing at the molecular level, good stoichiometric control, and lower processing temperature. By the way, the fabrication of the above-mentioned single-crystalline films were performed on single-crystal substrates with small lattice mismatch such as MgAl 2 O 4 (111), 6 YSZ(111), 10 and SiC(001). 6 But these single-crystal substrates are very expensive compared to sapphire (α-Al 2 O 3 ).…”

Section: -2mentioning

confidence: 99%

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Structural, magnetic and optical properties of Y bFe2O4 films deposited by spin coating

et al. 2016

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Rare-earth iron oxides (RFe2O4) have attracting attention as new electronic device materials because of their numerous functionalities, such as electronic ferroelectricity, ferrimagnetism, and high infrared absorption. In this paper, nearly monophasic Y bFe2O4 films were prepared on α-Al2O3(001) substrates by the spin coating method using an aqueous-based Y bFe2O4 solution. The solution was composed of a stoichiometric ratio of Y b(CH3COO)3 and Fe(NO3)3 with excess chelating agents. After heat treatment above 800 °C, well-crystallized and highly (001)-oriented Y bFe2O4 started to epitaxially form on the substrate under controlled oxygen partial pressure with H2/CO2 gas mixtures. X-ray pole figure analysis confirmed the following epitaxial relationship: Y bFe2O4[100](001)//α-Al2O3[100](001). Moreover formation of an Fe3O4 interracial layer between Y bFe2O4 and α-Al2O3 was detected by high-resolution transmission electron microscopy. Presence of the Fe3O4 interracial layer seemed to release the lattice misfit with the substrate. The Fe2+/Fe3+ ratio in the obtained Y bFe2O4 films was nearly stoichiometric and the indirect bandgap assigned to Fe2+ → Fe3+ charge transfer excitation was found to be ∼0.4 eV by optical spectroscopy. A clear magnetic transition from the paramagnetic state to the ferrimagnetic state occurred at ∼230 K.

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Section: Resultsmentioning

confidence: 83%

Section: -2mentioning

confidence: 99%

Section: -2mentioning

confidence: 99%

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Structural, magnetic and optical properties of Y bFe2O4 films deposited by spin coating

et al. 2016

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“…Various trivalent ions are selected as R ion in reported films: Lu, [18][19][20][21][22][23][24][25] Yb, [26][27][28] Tm 17 and In. 29 The change in R ions is unlikely to affect intrinsically as well as for bulk.…”

Section: Fabrication Of the Filmmentioning

confidence: 99%

“…However, the film fabrication of this material is still a developing research due to the difficulty in selecting substrates and keeping the stoichiometory, which changes various properties significantly. 15, 16 13 reports have been published by 2017, [17][18][19][20][21][22][23][24][25][26][27][28][29] following the first report by M. Seki et al in 2010. 17 In this paper, the film growth and electric, magnetic and optical properties of the films are briefly reviewed.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2018

MSEIJ

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Rare earth ion ferrite RFe 2 O 4 (R = Y, Dy, Ho, Er, Tm, Yb, Lu, Sc, or In) has been attracted much attention due to its anomal physical properties as a candidate of electronic ferroelectric. Although most of reports were discussed by bulk sample, much effort has been made in fabricating film of RFe 2 O 4 recently. Finally the charge order was directly observed just recently. Also some data indicate the spin-charge-orbital coupling. In this paper, the film growth and electric, magnetic and optical properties of the films are briefly reviewed.

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Pulsed laser deposition of ferrite thin films

Bulai

Caltun

2023

Ferrite Nanostructured Magnetic Materials

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Lowering the growth temperature of strongly-correlated YbFe2O4 thin films prepared by pulsed laser deposition

Cited by 12 publications

References 22 publications

Structural, magnetic and optical properties of Y bFe2O4 films deposited by spin coating

Structural, magnetic and optical properties of Y bFe2O4 films deposited by spin coating

Untitled

Pulsed laser deposition of ferrite thin films

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