Spin Pumping Induced Inverse Spin-Hall Effects in ${\rm La}_{0.7}{\rm Sr}_{0.3}{\rm MnO}_{3}$/Platinum Bilayer Film

Luo, G. Y.; Song, M. Y.; Hung, Hsiang-Hsuan; Chiu, Yi-Hsin; Kwo, J.; Lee, S. F.; Chang, Ching‐Ray; Lin, J. G.

doi:10.1109/tmag.2012.2199288

Cited by 8 publications

(4 citation statements)

References 31 publications

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“…Enlighted by our pioneer work on La 0.7 Sr 0.3 MnO 3 (LSMO)/Pt bilayers 25, 26 , it is realized that a systematic SP-FMR study should include all essential physical parameters for the investigated materials as well as a comprehensive analysis on FMR data, such that the origin of disagreement among reports could be self-prevailed. In this work we utilize the technique of cavity SP-FMR to investigate the intrinsic spin current properties on two series of LSMO/Pt bilayers with varying the thickness of LSMO and Pt.…”

Section: Introductionmentioning

confidence: 99%

“…The interest of this study is two folds. First, from the material aspect of view the hole-doped perovskite LSMO is a material less studied in the subject of ISHE 25–29 but with unique characteristics such as high spin polarization, half-metallic band structure 30 and room temperature colossal magnetoresistance 31 . It is a potential candidate for spin pump because of its low damping constant.…”

Section: Introductionmentioning

confidence: 99%

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Spin pump and probe in lanthanum strontium manganite/platinum bilayers

Luo

Lin

Chiang

et al. 2017

Sci Rep

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Ferromagnetic resonance driven spin pumping (FMR-SP) is a novel method to transfer spin current from the ferromagnetic (FM) layer into the adjacent normal metal (NM) layer in an FM/NM bilayer system. Consequently, the spin current could be probed in NM layer via inverse spin Hall effect (ISHE). In spite of numerous ISHE studies on FM/Pt bilayers, La0.7Sr0.3MnO3(LSMO)/Pt system has been less explored and its relevant information about interface property (characterized by spin mixing conductance) and spin-charge conversion efficiency (characterized by spin Hall angle) is a matter of importance for the possible applications of spintronic devices. In this work, the technique of FMR-SP has been applied on two series of LSMO/Pt bilayers with the thickness of each layer being varied. The thickness dependences of ISHE voltage allow to extract the values of spin mixing conductance and spin Hall angle of LSMO/Pt bilayers, which are (1.8 ± 0.4) × 1019 m−2 and (1.2 ± 0.1) % respectively. In comparison with other FM/Pt systems, LSMO/Pt has comparable spin current density and spin mixing conductance, regardless its distinct electronic structure from other ferromagnetic metals.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spin pump and probe in lanthanum strontium manganite/platinum bilayers

Luo

Lin

Chiang

et al. 2017

Sci Rep

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“…In addition to transition metal FMs, other conducting FMs, such as Heusler compounds [60,62,63], FM oxides (e.g. La 0.7 Sr 0.3 MnO 3 ) [64][65][66], intermetallics (e.g. Fe 3 Si) [67,68], and Fe 4 N [69], have been used for spin pumping experiments.…”

Section: Sources Of Spin Pumping: Ferro-/ferri-magnetic Materialsmentioning

confidence: 99%

FMR-driven spin pumping in Y₃Fe₅O₁₂-based structures

Yang¹,

Hammel²

2018

J. Phys. D: Appl. Phys.

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Ferromagnetic resonance driven spin pumping, a topic of steadily increasing interest since its emergence over two decades ago, remains one of the most exciting research fields in condensed matter physics. Among the many materials that have been explored for spin pumping, yttrium iron garnet (YIG) is one of the most extensively studied because of its exceptionally low magnetic damping and insulating nature. There is a great amount of literature in the spin pumping and related research fields, too broad for this review to cover. In this Topical Review, we focus on the YIG-based spin pumping results carried out by our groups, including: the mechanism and technical details of our off-axis sputtering technique for the growth of single-crystalline YIG epitaxial films with a high degree ordering, experimental evidence for the high quality of the YIG films, spin pumping results from YIG into various transition metals and their heterostructures, dynamic spin transport in YIG/antiferromagnet hybrid structures, intralayer spin pumping by localized spin wave modes confined by a micromagnetic probe, dynamic spin coupling between YIG and nitrogen-vacancy centers in diamond, parametric spin pumping from high-wavevector spin waves in YIG, and localized spin wave mode behavior in broadly tunable spatially complex magnetic configurations. These results build on the power and versatility of YIG spin pumping to improve our understanding of spin dynamics, spin currents, spin Hall physics, spin-orbit coupling, dynamic magnetic coupling, and the relationship between these phenomena in a broad range of materials, geometries, and settings.

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“…There are a few reports where spin pumping has been investigated in LSMO/Pt bilayers for which the LSMO is primarily prepared by pulsed laser deposition technique. [22][23][24][25][26][27] In this work, we aim to study LSMO/Pt bilayers where the samples have been fabricated by oxide molecular beam epitaxy (OMBE) technique. In recent years OMBE has been proven to be an excellent technique to grow high qualilty complex oxide thin films.…”

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confidence: 99%

Simultaneous observation of anti-damping and inverse spin Hall effect in La$_{0.67}$Sr$_{0.33}$MnO$_{3}$/Pt bilayer system

Gupta¹,

Singh²,

Roy³

et al. 2020

Preprint

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Manganites have shown potential in spintronics because they exhibit high spin polarization. Here, by ferromagnetic resonance we have studied the damping properties of La0.67Sr0.33MnO3/Pt bilayers which are prepared by oxide molecular beam epitaxy. The damping coefficient (α) of La0.67Sr0.33MnO3 (LSMO) single layer is found to be 0.0104. However the LSMO/Pt bilayers exhibit decrease in α with increase in Pt thickness. This decrease in the value of α is probably due to high anti-damping like torque. Further, we have investigated the angle dependent inverse spin Hall effect (ISHE) to quantify the spin pumping voltage from other spin rectification effects such as anomalous Hall effect and anisotropic magnetoresistance. We have observed high spin pumping voltage (∼ 20 µV ). The results indicate that both anti-damping and spin pumping phenomena are occuring simultaneously. A large value of spin Hall angle of 4.62 has been evaluated.

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Spin Pumping Induced Inverse Spin-Hall Effects in ${\rm La}_{0.7}{\rm Sr}_{0.3}{\rm MnO}_{3}$/Platinum Bilayer Film

Cited by 8 publications

References 31 publications

Spin pump and probe in lanthanum strontium manganite/platinum bilayers

Spin pump and probe in lanthanum strontium manganite/platinum bilayers

FMR-driven spin pumping in Y₃Fe₅O₁₂-based structures

Simultaneous observation of anti-damping and inverse spin Hall effect in La$_{0.67}$Sr$_{0.33}$MnO$_{3}$/Pt bilayer system

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Spin Pumping Induced Inverse Spin-Hall Effects in ${\rm La}_{0.7}{\rm Sr}_{0.3}{\rm MnO}_{3}$/Platinum Bilayer Film

Cited by 8 publications

References 31 publications

Spin pump and probe in lanthanum strontium manganite/platinum bilayers

Spin pump and probe in lanthanum strontium manganite/platinum bilayers

FMR-driven spin pumping in Y3Fe5O12-based structures

Simultaneous observation of anti-damping and inverse spin Hall effect in La$_{0.67}$Sr$_{0.33}$MnO$_{3}$/Pt bilayer system

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FMR-driven spin pumping in Y₃Fe₅O₁₂-based structures