Figure 7: Cross-sectional images.
From: Generation of spin currents by surface plasmon resonance
(a) Cross-sectional transmission electron microscope (TEM) images of the contacted Pt/BiY2Fe5O12/Au-NP sample. (b,c) Magnified TEM images of the contacted Pt/BiY2Fe5O12/Au-NP sample near the Pt film (b) and the Au NP (c). (d) Cross-sectional TEM images of the voided Pt/BiY2Fe5O12/Au-NP sample. (e,f) Magnified TEM images of the voided Pt/BiY2Fe5O12/Au-NP sample near the Pt film (e) and the Au NP (f). Scale bars in (a) and (d) (b,c,e and f) represent 100 nm (10 nm). White arrows in (a) and (d) represent the crystal orientation of the Gd3Ga5O12 substrate. The voided Pt/BiY2Fe5O12/Au-NP sample has small voids with the size of 20–30 nm between the BiY2Fe5O12 film and Au NPs, while Au NPs in the contacted sample are densely embedded in BiY2Fe5O12.
