Spin transport and dynamics in all-oxide perovskite 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>2</mml:mn><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>MnO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow><mml:mo>/</mml:mo><mml:msub><mml:mi>SrRuO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>

Emori, Satoru; Alaan, Urusa S.; Gray, Matthew; Sluka, Volker; Chen, Yizhang; Kent, Andrew D.; Suzuki, Yuri

doi:10.1103/physrevb.94.224423

Cited by 47 publications

(29 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this fitting, we take into account the thickness dependence of the SrIrO 3 resistivity which increases in ultrathin films due to scattering mechanisms (see SI Appendix for details), which gives a spin-mixing conductance G ↑↓ of 1.8 × 10 14 Ω −1 •m −2 and a spin diffusion length of 1.4 nm. These are consistent with that reported in the LaSrMnO 3 /SrRuO 3 system (47). The value of the spin-diffusion length corresponds to the tetragonal phase of SrIrO 3 , since the damping parameter is largely saturated already for thicknesses less than the point of transition to the orthogonal phase at 4.8 nm (12 uc).…”

Section: Methodssupporting

confidence: 89%

Anisotropic spin-orbit torque generation in epitaxial SrIrO ₃ by symmetry design

Nan

Anderson

Gibbons

et al. 2019

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

Spin-orbit coupling (SOC), the interaction between the electron spin and the orbital angular momentum, can unlock rich phenomena at interfaces, in particular interconverting spin and charge currents. Conventional heavy metals have been extensively explored due to their strong SOC of conduction electrons. However, spin-orbit effects in classes of materials such as epitaxial 5d-electron transition-metal complex oxides, which also host strong SOC, remain largely unreported. In addition to strong SOC, these complex oxides can also provide the additional tuning knob of epitaxy to control the electronic structure and the engineering of spin-to-charge conversion by crystalline symmetry. Here, we demonstrate room-temperature generation of spin-orbit torque on a ferromagnet with extremely high efficiency via the spin-Hall effect in epitaxial metastable perovskite SrIrO3. We first predict a large intrinsic spin-Hall conductivity in orthorhombic bulk SrIrO3 arising from the Berry curvature in the electronic band structure. By manipulating the intricate interplay between SOC and crystalline symmetry, we control the spin-Hall torque ratio by engineering the tilt of the corner-sharing oxygen octahedra in perovskite SrIrO3 through epitaxial strain. This allows the presence of an anisotropic spin-Hall effect due to a characteristic structural anisotropy in SrIrO3 with orthorhombic symmetry. Our experimental findings demonstrate the heteroepitaxial symmetry design approach to engineer spin-orbit effects. We therefore anticipate that these epitaxial 5d transition-metal oxide thin films can be an ideal building block for low-power spintronics.

show abstract

Section: Methodssupporting

confidence: 89%

Anisotropic spin-orbit torque generation in epitaxial SrIrO ₃ by symmetry design

Nan

Anderson

Gibbons

et al. 2019

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

show abstract

“…The in-plane angular dependence of the FMR linewidth can be analyzed by considering the different contributions: [36][37][38][39] Gilbert damping, two-magnon scattering, linewidth broadening due to mosaicity, and inhomogeneous linewidth broadening. The inhomogeneous linewidth broadening caused by the fluctuation of the strength of the anisotropy fields is angle independent.…”

Section: Fmr Measurement Resultsmentioning

confidence: 99%

Thickness dependence of dynamic magnetic properties of soft (FeCo)-Si alloy thin films

Abe

Nakano

et al. 2019

Phys. Rev. B

View full text Add to dashboard Cite

Fe 69 Co 26 Si 5 alloy thin films of various thicknesses were deposited on MgO(100) single crystal substrates by magnetron sputtering at 230 ℃ substrate temperature. The thickness dependence of the dynamic magnetic properties was investigated using broadband ferromagnetic resonance (FMR). The X-ray diffraction (XRD) results indicate that all films are of the bcc structure with an in-plane epitaxial alignment of [100] FeCoSi // [110] MgO. The exchange constant was determined from the field shift between the uniform precession FMR mode and the first order perpendicular standing spin wave (PSSW) resonance mode in the FMR spectra. The effective damping parameter decreases dramatically with increasing film thickness up to 16 nm due to the decrease of the spin pumping contribution and then remains relatively constant as the film thickness increases. In-plane angle dependent FMR measurements reveal that the in-plane anisotropy of these films are dominated by a four-fold magnetic anisotropy, which increases sharply with increasing film thickness up to 16 nm and then shows a slightly decreasing trend as the film thickness increases. In-plane angular dependence of the FMR linewidth shows a strong two-magnon scattering contribution.

show abstract

“…где H Pt/YIG -ширина линии FMR гетероструктуры Pt/YIG. При однородном уширении линии поглощения g ↑↓ экспериментально определяется утечкой спинов через границу [3,5,8,10]:…”

Section: спиновая проводимость границы Pt/yigunclassified

Влияние Амплитуды Свч-Воздействия На Спиновый Ток Границы Платина/Железоиттриевый Гранат

Константинян¹,

Овсянников²,

Станкевич³

et al. 2021

Физика Твердого Тела

View full text Add to dashboard Cite

A numerical study of the features of the propagation of spin waves in a waveguide made of yttrium iron garnet (YIG) and Fe-Rh alloy in the form of a plate, located on top of the central part of the YIG, is carried out. Based on the simulation results, the possibilities of controlling the dynamics of spin waves in the structure under study were also revealed. Micromagnetic numerical simulation was used to study the transfer of a spin-wave signal in a multimode mode by numerically solving the Landau – Lifshitz – Hilbert equation. Transformation of the transmission spectra of spin waves shows that the proposed structure will make it possible to control the propagation of spin-wave modes due to a sharp change in the Fe-Rh magnetization in the region of the magnetic phase transition temperature close to room temperature. In addition, the spin wave signal can be controlled by a small temperature change in the Fe-Rh plate generated by the laser radiation. The two-layer structure of YIG / Fe-Rh, from an applied point of view, can be used as a functional unit in planar magnon networks performing space-frequency demultiplexing and filtering of spin-wave modes.

show abstract

Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3

Cited by 47 publications

References 70 publications

Anisotropic spin-orbit torque generation in epitaxial SrIrO ₃ by symmetry design

Anisotropic spin-orbit torque generation in epitaxial SrIrO ₃ by symmetry design

Thickness dependence of dynamic magnetic properties of soft (FeCo)-Si alloy thin films

Влияние Амплитуды Свч-Воздействия На Спиновый Ток Границы Платина/Железоиттриевый Гранат

Contact Info

Product

Resources

About

Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3

Cited by 47 publications

References 70 publications

Anisotropic spin-orbit torque generation in epitaxial SrIrO 3 by symmetry design

Anisotropic spin-orbit torque generation in epitaxial SrIrO 3 by symmetry design

Thickness dependence of dynamic magnetic properties of soft (FeCo)-Si alloy thin films

Влияние Амплитуды Свч-Воздействия На Спиновый Ток Границы Платина/Железоиттриевый Гранат

Contact Info

Product

Resources

About

Anisotropic spin-orbit torque generation in epitaxial SrIrO ₃ by symmetry design

Anisotropic spin-orbit torque generation in epitaxial SrIrO ₃ by symmetry design