MgB2 Image Gallery

Plan-View TEM of the MgB₂ film consisting of MgB₂ and MgO.

The dark-field technique highlights isolated ~10 nm grains. MgB₂ Ring absences and the distribution of intensity within the rings in selected area diffraction patterns (SADPs) reveal the [0001] fiber texture.

(b) with the beam approximately parallel to the film surface normal and
(c) tilted substantially away from the surface normal Random orientation of ~10 nm grains in the plane of the film plane implies a the high density of high angle grain boundaries - J_c still greater than 10⁶ A/cm²

TEM images byXueyan Song . Sample fabrication and properties published in: C.B. Eom et al., Nature 411: 558-560, 2001