Polaron Pit

    Newer Older

    In an iron oxide lattice, an electron sits on an iron(II) atom (yellow center). It's negativity attracts the more positive iron(III) atoms (red circles) and repels the more negative oxygen atoms (white and blue circles), creating a physical distortion in the lattice from which the electron escapes only with the help of heat energy.

    Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory." Please use provided caption information for use in appropriate context.

    keyboard shortcuts: previous photo next photo L view in light box F favorite < scroll film strip left > scroll film strip right ? show all shortcuts