Strain-tunable magnetocrystalline anisotropy in epitaxial Y3Fe5O12 thin films

Article

关键词: SINGLE-CRYSTAL FILMS;    YTTRIUM-IRON-GARNET;    FERROMAGNETIC-RESONANCE;    MAGNETIC-ANISOTROPY;    DEPENDENCE;    FMR;    YAG;    YIG;   

DOI  :  10.1103/PhysRevB.89.134404

来源: SCIE

【 摘 要 】

We demonstrate strain tuning of magnetocrystalline anisotropy over a range of more than 1000 G in epitaxial Y3Fe5O12 films of excellent crystalline quality grown on lattice-mismatched Y3Al5O12 substrates. Ferromagnetic resonance (FMR) measurements reveal a linear dependence of both out-of-plane and in-plane uniaxial anisotropy on the strain-induced tetragonal distortion of Y3Fe5O12. Importantly, we find the spin mixing conductance G(r) determined from inverse spin Hall effect and FMR linewidth broadening remains large: G(r) = 3.33 x 10(14) Omega(-1) m(-2) in Pt/Y3Fe5O12/Y3Al5O12 heterostructures, quite comparable to the value found in Pt/Y3Fe5O12 grown on lattice-matched Gd3Ga5O12 substrates.

【 授权许可】

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