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
Baltimore, or, The Steadfast Tin Soldier and the Vampire tend their wounds and drink. Baltimore explains bitterly that his fight is not over, that it will never be over, and that he understands what he has been made into. Then Baltimore reaches into his chest and pulls out his heart, which has become a lump of tin with his wife's wedding ring set in its side. Mike Mignola came up with the concept for "Baltimore, or, The Steadfast Tin Soldier and the Vampire" and conceived much of the plot, though Christopher Golden penned the novel based on their joint efforts. In 2010 Dark Horse Comics began a comic book