Large Spin Pumping from Epitaxial Y3Fe5O12 Thin Films to Pt and W Layers

Autor:	Wang, H. L., Du, C. H., Pu, Y., Adur, R., Hammel, P. C., Yang, F. Y.
Rok vydání:	2013
Předmět:	Condensed Matter - Materials Science
Zdroj:	Phys. Rev. B 88, 100406(R) (2013)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.88.100406
Popis:	Epitaxial Y3Fe5O12 thin films have been deposited by off-axis sputtering, which exhibit excellent crystalline quality, enabling observation of large spin pumping signals in Pt/Y3Fe5O12 and W/Y3Fe5O12 bilayers driven by cavity ferromagnetic resonance. The inverse spin Hall voltages reach 2.10 mV and -5.26 mV in 5-mm long Pt/Y3Fe5O12 and W/Y3Fe5O12 bilayers, respectively, excited by a radio-frequency magnetic field of 0.3 Oe. From the ferromagnetic resonance linewidth broadening, the interfacial spin mixing conductance of 4.56E14 {\Omega}-1m-2 and 2.30E14 {\Omega}-1m-2 are obtained for Pt/Y3Fe5O12 and W/Y3Fe5O12 bilayers, respectively. Comment: 20 pages 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1307.1172 Zobrazit plný text záznamu View this record from Arxiv