Magneto-optical properties of yttrium iron garnet (YIG) thin films elaborated by radio frequency sputtering

Boudiar, T.; Payet-Gervy, Béatrice; Blanc-Mignon, M.-F.; Rousseau, Jean‐Jacques; Berre, M. Le; Joisten, Hélène

doi:10.1016/j.jmmm.2004.06.046

Cited by 130 publications

(50 citation statements)

References 18 publications

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“…The similar phenomenon was reported in κ-Br on a SrTiO 3 substrate, 16 of which the thermal expansion coefficient is close to that of YIG (∼ 10 ppm/K at room temperature 19,20 ). Thus, the ground state of the κ-Br film on YIG is expected to be slightly on the insulator side of the Mott transition.…”

Section: 17supporting

confidence: 81%

Spin-current injection and detection in κ-(BEDT-TTF)2Cu[N(CN)2]Br

et al. 2015

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Spin-current injection into an organic semiconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br film induced by the spin pumping from an yttrium iron garnet (YIG) film. When magnetization dynamics in the YIG film is excited by ferromagnetic or spin-wave resonance, a voltage signal was found to appear in the κ-(BEDT-TTF)2Cu[N(CN)2]Br film. Magnetic-field-angle dependence measurements indicate that the voltage signal is governed by the inverse spin Hall effect in κ-(BEDT-TTF)2Cu[N(CN)2]Br. We found that the voltage signal in the κ-(BEDT-TTF)2Cu[N(CN)2]Br/YIG system is critically suppressed around 80 K, around which magnetic and/or glass transitions occur, implying that the efficiency of the spin-current injection is suppressed by fluctuations which critically enhanced near the transitions.

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Section: 17supporting

confidence: 81%

Spin-current injection and detection in κ-(BEDT-TTF)2Cu[N(CN)2]Br

et al. 2015

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“…YIG films have been grown by liquid phase epitaxy [3], sputtering [4] or pulsed laser deposition (PLD) [2,5]. Single-beam PLD from a stoichiometric target usually leads to films that are iron (Fe) deficient, as previously reported in the literature [2] and confirmed in our experiments [5].…”

Section: Introductionsupporting

confidence: 82%

Tailoring of YIG film properties via compositional tuning by multi-beam pulsed laser deposition

Sposito

Stenning

Gregory

et al. 2013

2013 IEEE Photonics Conference

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Abstract:We report an investigation of the effects of variation of composition on the properties of YIG (yttrium iron garnet) films grown on YAG substrates by multi-beam pulsed laser deposition (PLD).Magneto-optic garnets, such as YIG (Y 3 Fe 5 O 12 ), find application in areas including optical communication, where they can be used as optical rotators and isolators [1] via their Faraday effect, and also in the microwave range, where their ferromagnetic properties can be exploited e.g. in magnetostatic wave band pass filters [2].YIG films have been grown by liquid phase epitaxy [3], sputtering [4] or pulsed laser deposition (PLD) [2,5]. Single-beam PLD from a stoichiometric target usually leads to films that are iron (Fe) deficient, as previously reported in the literature [2] and confirmed in our experiments [5].We have studied the composition, analysed by energy-dispersive x-ray spectroscopy, and the effects of stoichiometric variation on the resultant properties of PLD-grown YIG films, whose yttrium (Y) and Fe concentration is varied by co-ablation of two separate targets of polycrystalline YIG with either a Y 2 O 3 or a Fe 2 O 3 target. In this report, we analyse in detail our results with the latter target, for which we have most extensive data.All depositions were performed in our multi-beam PLD system, described in [6]. YIG films were grown on 10 × 10 mm 2 1 mm-thick YAG (100)-oriented substrates, heated to T ≈ 1400 K, the highest temperature possible in our system, lower than the optimum value (T OPT ≈ 1600 K) for YIG/YAG growth [5]. The off-axis configuration of target holders relative to the substrate causes a lower deposition rate, compared to that reported in [5], using our single-beam PLD system; for this reason, we reduced the target-substrate distance to d = 4 cm and, at the same time, increased the oxygen pressure to P O2 = 3.4 Pa, following the general rule of thumb: d•P O2 = const., in order to maintain the same plume dynamics. Multi-PLD experiments of YIG + Fe 2 O 3 were performed with two different laser configurations, as described below.Samples Y45 and Y48-51, whose data are reported in the upper half of Table 1, were deposited by ablating the YIG target with a frequency-quadrupled Nd:YAG laser (wavelength: λ = 266 nm; fluence: F ≈ 1.3 J/cm 2 ; pulse repetition rate: f = 10 Hz) and the Fe 2 O 3 target with a KrF laser (wavelength: λ = 248 nm; fluence: F ≈ 1.3 J/cm 2 ), whose pulse repetition rate was varied between 0 and 4 Hz to increase the Fe concentration in the YIG films.Samples Y52-58, whose data are reported in lower half of Table 1, were deposited by ablating the YIG target with the KrF laser (fluence: F ≈ 2.3 J/cm 2 ; pulse repetition rate: f = 20 Hz, except for Y57, grown at f = 16 Hz) and the Fe 2 O 3 target with the Nd:YAG laser (F ≈ 1.3 J/cm 2 ), whose pulses were gated through a programmable shutter, whose opening and closing times were changed to achieve equivalent repetition rates of 0-4 Hz. The target ablation ratio r is defined as the ratio of the number of laser pulses per...

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“…Both Yttrium Iron Garnet (YIG) and Gadolinium Iron Garnet (GdIG) continue to be studied due to diversified scientific and technological motivations, such as: magnetism 1,2 , thin films 3,4 , environmental stability 5,6 , structural defects and faults 7 , synthesis 8 , nanocrystals and nanocomposites 9 , magneto-optical properties and applications [10][11][12] , as well as wireless infrastructures 13 . Despite of this advanced status of science and technology on YIG and GdIG, there is still considerable lack of scientific knowledge on: crystallization of GdYIG from mixed gadolinium-yttrium hydroxides generated by means co-precipitation method of synthesis; and effects of sintering temperature on microstructure and magnetic properties of GdYIG.…”

Section: Introductionmentioning

confidence: 99%

Detailed crystallization study of co-precipitated Y1.47Gd1.53Fe5O12 and relevant magnetic properties

Serra¹,

Ogasawara²,

Ogasawara³

2007

Quím. Nova

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Recebido em 6/6/06; aceito em 15/3/07; publicado na web em 30/7/07The crystallization process of co-precipitated Y 1.5 Gd 1. . Dry pressed rings were sintered at 1270 and 1320 o C, increasing the grain-size from 3.1 to 6.5 μm, the theoretical density by 87.6 to 95.3% and decreasing H c from 2.9725 to 1.4005 Oe. Additionally, H c increased when the frequency of the hysteresis graph varied from 60 Hz to 10 kHz, the curie temperature was 282.4 o C and M s equalled 9.25 emu g -1 (0.17 kG) agreeing well with the B s -value of the hysteresis graph and literature values.

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Magneto-optical properties of yttrium iron garnet (YIG) thin films elaborated by radio frequency sputtering

Cited by 130 publications

References 18 publications

Spin-current injection and detection in κ-(BEDT-TTF)2Cu[N(CN)2]Br

Spin-current injection and detection in κ-(BEDT-TTF)2Cu[N(CN)2]Br

Tailoring of YIG film properties via compositional tuning by multi-beam pulsed laser deposition

Detailed crystallization study of co-precipitated Y1.47Gd1.53Fe5O12 and relevant magnetic properties

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