Muffin-tin approximation Muffin-tin approximation The muffin-tin approximation is a shape approximation of the potential well in an crystal lattice. It is most commonly employed in quantum mechanical simulations of the electronic band structure in solids. The approximation was proposed by John C. Slater. Augmented plane wave method (APW) is a method which uses muffin-tin approximation. It is a method to approximate the energy states of an electron in a crystal lattice. The basic approximation lies in the potential in which the potential is assumed to be spherically symmetric in the muffin-tin region and constant in the interstitial region. Wave functions (the augmented
Wedding dress of Princess Mary of Teck (although "The Times" reported there was none) and the veil of her mother's which she wore was also made of Honiton lace, fastened by diamond pins given as a gift from Queen Victoria. Matching the orange blossom elements to the dress, small wreaths were placed all the way around the bust and on the hair. Princess Mary completed the wedding outfit with a diamond tiara from Queen Victoria; diamond rivière necklace from the Prince and Princess of Wales and diamond earrings and anchor brooch, a wedding gift from Prince George. Out of all of the wedding toilette, the veil was