Abstract
Spin transmission in Cr2O3 films of different crystalline textures is studied experimentally. With Y3Fe5O12/Cr2O3/Pt trilayer devices, a spin current is injected into Cr2O3 by spin pumping from Y3Fe5O12, and the spin transmission is monitored by the inverse spin Hall voltage (VISHE) in Pt. For (0001) plane textured Cr2O3 films, VISHE vanishes quickly below the Néel temperature. However, the VISHE shows a broad shoulder below the Néel temperature for (112‾0) and (112‾3) plane co-textured Cr2O3. Such a difference in the temperature dependence of Cr2O3 can be understood by the different Néel vector orientations with respect to the injected spin moment direction.
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