Magnetic properties of bulk Fe-doped indium oxide

Bérardan, David; Guilmeau, Emmanuel

doi:10.1088/0953-8984/19/23/236224

Cited by 50 publications

(26 citation statements)

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“…At ambient pressure, the solubility of transition metals in In 2 O 3 is rather small (z % 0.1 for M = Mn, [22] z % 0.15 for M = Cr, [23] and z % 0.5 for M = Fe). [24] Magnetic properties of (In 2Àz M z )O 3 have attracted tremendous interest as diluted magnetic semiconductor systems. [25] The origin of roomtemperature ferromagnetic-like properties in (In 2Àz M z )O 3 has been discussed a lot.…”

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confidence: 99%

(In_1−yMn_y)MnO₃ (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties

et al. 2010

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The perovskite-type ABO 3 structure is highly adaptive. There are hundreds of perovskite-type compounds.[1] Many of them have extremely important technological properties, for example BaTiO 3 , SrTiO 3 , SrRuO 3 , and Pb(Zr 1Àx Ti x )O 3 . Applications of perovskites range from use as catalysts or sensors to superconductors and ferromagnetic or ferroelectric materials.[1] Among perovskites, (doped) manganites LnMnO 3 (Ln = La-Lu) have been investigated a lot in the last decades because of the colossal magnetoresistance and orbital/charge ordering phenomena. [2,3] The discovery of multiferroic properties of LnMnO 3 (Ln = Tb-Lu) has attracted new interest to these systems. [4,5] LnMnO 3 (Ln = La-Lu) compounds are divided into two groups: perovskites LnMnO 3 (Ln = La-Dy) and hexagonal LnMnO 3 (Ln = Y, Ho-Lu). The perovskite modification can be stabilized for all members of LnMnO 3 (Ln = La-Lu) using a high-pressure synthesis or other methods. The magnetic phase diagram for perovskites LnMnO 3 (Ln = La-Lu) is well established, and there are two magnetic phases with longrange ordering and multiferroic properties for small Ln 3+ ions. [3][4][5] With decreasing radius of Ln 3+ ions, the Jahn-Teller distortion increases and the competition between nearestneighbor and next-nearest-neighbor interactions is enhanced.[3] Are there any possibilities to extend the existing phase diagram of LnMnO 3 ? The hexagonal modification is known for smaller ions, such as in ScMnO 3 , and InMnO 3 . [6,7] However, ScMnO 3 and InMnO 3 perovskites have never been reported, even though attempts to stabilize new phases of ScMnO 3 and InMnO 3 have been made. [8] Note that ScCrO 3 , [9] InCrO 3 , and InRhO 3 perovskites can be prepared at high pressure.[10] Indium-based perovskites have recently attracted attention as new room-temperature multiferroic materials. [11][12][13] Herein, we report on the stabilization of new perovskite oxides (In 1Ày Mn y )MnO 3 (1/9 y 1/3) using a high-pressure high-temperature technique. Not only is the discovery of new simple ABO 3 perovskites extremely rare these days, but (In 1Ày Mn y )MnO 3 perovskites are very unusual in a few ways. First, there is a significant number of Mn atoms at the A site of the perovskite structure together with Mn atoms at the B site, and the doping at the A site occurs by Mn 2+ ions. Second, (In 1Ày Mn y )MnO 3 crystallizes in the B-site-ordered structure owing to ordering of Mn All the observed reflections on the synchrotron XRD pattern of In 0.6 MnO 2.4 ((In 0.75 Mn 0.25 )MnO 3 ) could be indexed in a monoclinic system with a % 5.11, b % 5.31, c % 7.84 , and b % 92.198. Reflection conditions derived from the indexed reflections were h + l = 2n for h0l, h00, and 00l and k = 2n for 0k0, affording one possible space group P2 1 /n (No. 14, cell choice 2). The lattice parameters and space group correspond to the monoclinically distorted GdFeO 3 -type perovskite structure. Significant anisotropic broadening of reflections was observed in high-resolution synchrotron XRD data. [14] In gener...

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(In_1−yMn_y)MnO₃ (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties

et al. 2010

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“…The refinement results ratify that Co 2+ ions substitute the In 3+ site and the hydrogenation or long re-heating of the hydrogenated sample did not cause any structural change. A slight cell volume contraction is observed on Co doping (V= 1035.4 Å3 for pure In 2 O 3 and V= 1029.5 Å3 for 6% Co doped sample), due to a minor difference in ionic radii of the dopant and the host ions (Co 2+ :0.745Å and In 3+ :0.80 Å) [31,32]. Interestingly, upon re-heating of the hydrogenated samples (for 7 or more h) the oxygen contents re-acquire their as-prepared values.…”

Section: Introductionmentioning

confidence: 99%

“…The magnetic properties of doped oxide-based semiconductors were seen to be very sensitive to the fabrication process and the processing conditions. Various theoretical and experimental studies have been proposed on the ferromagnetic, paramagnetic, antiferromagnetic, and spin glass properties of transition metal (TM)-doped TiO 2 [9,10], ZnO [11][12][13][14][15][16], SnO 2 [17][18][19], as well as In 2 O 3 [20][21][22][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

“…Though, the origin of ferromagnetism (FM) is still controversial and numerous exchange mechanisms have been offered to interpret the origin of magnetism. These mechanisms include Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions, bound magnetic polaron models (BMPs), as well as carrier-mediated and charge transfer FMs [30][31][32][33][34][35]. At present, only few investigations reported on of Co-doped In 2 O 3 nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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Study of the Hydrogenation and Re-heating of Co-doped In<sub>2</sub>O<sub>3</sub> based Diluted Magnetic Semiconductors

Mukherji¹,

Mathur²,

Samariya³

et al. 2017

JAN

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Abstract. In this work, the Co 2+ ions doping effect on the magnetic behaviour of In 2 O 3 nanoparticles (NPs) has been discussed. The In 0.94 Co 0.06 O sample was prepared by solid state reaction method. According to XRD, the single crystalline phase was identified as the cubic bixbyite crystal structure and doping effect of prepared NPs. The magnetic study at room temperature (RT) revealed that the prepared Co doped In 2 O 3 sample had achieved overlapped paramagnetic (PM) properties defeating the diamagnetic (DM) properties of In 2 O 3 . Furthermore, it was found that the ferromagnetic (FM) is clearly induced by post-annealing in hydrogen atmosphere at 50 and 300 K. This study also depicts that the sample is finally returned to the PM state after re-heating.

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“…There is great technological and academic interest in composites based on hematite and other different transition metal oxides [6][7][8][9][10][11]. These composites present numerous applications, mainly in optoelectronics, catalysis and gas sensing materials.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of indium oxide-hematite magnetic ceramic solid solution

Sorescu

Diamandescu

et al. 2011

Hyperfine Interact

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Indium oxide-doped hematite xIn 2 O 3 * (1 − x)α-Fe 2 O 3 (molar concentration x = 0.1-0.7) solid solutions were synthesized using mechanochemical activation by ball milling. XRD patterns yield the dependence of lattice parameters and grain size as function of milling time. After 12 h of milling, the completion of In 3+ substitution of Fe 3+ in hematite lattice occurs for x = 0.1. For x = 0.3, 0.5 and 0.7, the substitutions between In 3+ and Fe 3+ into hematite and respectively, In 2 O 3 lattices occur simultaneously. The lattice parameters of α-Fe 2 O 3 (a and c) and In 2 O 3 (a) vary with milling time. For x = 0.1, Mössbauer spectra were fitted with one, two, or three sextets versus milling time, corresponding to gradual substitution of In 3+ for Fe 3+ in hematite lattice. For x = 0.3, Mössbauer spectra after milling were fitted with three sextets and two quadrupole-split doublets, representing In 3+ substitution of Fe 3+ in hematite lattice and Fe 3+ substitution of In 3+ in two different sites of In 2 O 3 lattice. For x = 0.5 and 0.7, Mössbauer spectra fitting required two sextets and one quadrupole-split doublet, representing coexistence of In 3+ substitution of Fe 3+ in hematite lattice and Fe 3+ substitution of In 3+ in indium oxide lattice. The recoilless fraction studied versus milling time for each molar concentration exhibited low values, consistent with the occurrence of nanoparticles in the system. SEM/EDS measurements revealed that the mechanochemical activation by ball milling produced xIn 2 O 3 * (1 − x)α-Fe 2 O 3 solid solution system with a wide range of particle size distribution, from nanometer to micrometer, but with a uniform distribution of Fe, In, and O elements.

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Magnetic properties of bulk Fe-doped indium oxide

Cited by 50 publications

References 28 publications

(In_1−yMn_y)MnO₃ (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties

(In_1−yMn_y)MnO₃ (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties

Study of the Hydrogenation and Re-heating of Co-doped In<sub>2</sub>O<sub>3</sub> based Diluted Magnetic Semiconductors

Synthesis and characterization of indium oxide-hematite magnetic ceramic solid solution

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Magnetic properties of bulk Fe-doped indium oxide

Cited by 50 publications

References 28 publications

(In1−yMny)MnO3 (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties

(In1−yMny)MnO3 (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties

Study of the Hydrogenation and Re-heating of Co-doped In<sub>2</sub>O<sub>3</sub> based Diluted Magnetic Semiconductors

Synthesis and characterization of indium oxide-hematite magnetic ceramic solid solution

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(In_1−yMn_y)MnO₃ (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties

(In_1−yMn_y)MnO₃ (1/9≤y≤1/3): Unusual Perovskites with Unusual Properties