Atomistic and electronic structure of antisite defects in yttrium aluminum garnet: density functional study

First-principles density-functional theory calculations have been performed on the atomistic structure, electronic structure, and distribution of antisite defects (AD) in yttrium aluminum garnet (YAG) Y3 Al5 O12. The formations of one and two antisite defects per unit cell are endothermic and the formation energy per defect is lower in 2AD than in 1AD. In the most stable 1AD structure, Y and Al are as close as possible and two oxygen atoms become unbound to Al rising the energy of their (highest) valence levels and introducing a defect level in the gap 0.25 eV above the top of the perfect YAG valence band. The binding energy between the individual substitutional defects YAl and AlY to form 1AD is 0.74 eV. The most stable 2AD structure is made of two single ADs linked together with one AlO6 moiety and it has basically the same electronic structure as the most stable 1AD; it is the only 2AD structure that preserves the inversion center with respect to the unit-cell center. In this case, the binding energy between two single ADs is 0.22 eV

A Farey Tail for Attractor Black Holes

The microstates of 4d BPS black holes in IIA string theory compactified on a Calabi-Yau manifold are counted by a (generalized) elliptic genus of a (0,4) conformal field theory. By exploiting a spectral flow that relates states with different charges, and using the Rademacher formula, we find that the elliptic genus has an exact asymptotic expansion in terms of semi-classical saddle-points of the dual supergravity theory. This generalizes the known "Black Hole Farey Tail" of [1] to the case of attractor black holes.Comment: 36 pages, 3 figures, note adde

Properties of the moon and its environment from lunar magnetometer measurements

Lunar analysis of data from a total of nine lunar magnetometers is described. Results obtained concerning electromagnetic, compositional, and structural properties of the lunar interior are discussed. Specific topics covered include: lunar magnetic permeability and iron abundance; limits on a highly conducting lunar core; lunar electrical conductivity; and internal structure inferred from conductivity and permeability results

Antisite defects in Ce-doped YAG (Y3Al5O12): First-principles study on structures and 4f-5d transitions

This is an electronic version of an article published in Journal of Materials Chemistry. Muñoz García, A.B., Barandiarán, Z. and Luis Seijo. "Antisite defects in Ce-doped YAG (Y3Al5O12): First-principles study on structures and 4f-5d transitions". Journal of Materials Chemistry 22 (2012): 19888-1989

Automated water monitor system field demonstration test report. Volume 1: Executive summary

A system that performs water quality monitoring on-line and in real time much as it would be done in a spacecraft, was developed and demonstrated. The system has the capability to determine conformance to high effluent quality standards and to increase the potential for reclamation and reuse of water

Real Cedula de su Magestad, a consulta del Consejo-pleno, para que los Tribunales y Justicias del Reyno, asi ordinarias, como comisionadas, ó limitadas á ciertas causas ó personas, procedan con arreglo á las Leyes Reales en la administracion de justicia á determinar las causas con la brevedad mas posible, sin permitir dilaciones, ni suspender su curso

Escut reial xil. a port. i caplletra xil. ornada a l'inici del textF. A4v en blanc, sign.: A4"Real Cedula de su Magestad, a consulta del Consejo pleno, para que los tribunales, y Justicias del Reyno, asi ordinarias, como comisionadas, ò limitadas à ciertas Causas, ò Personas, procedan con arreglo à las Leyes Reales en la administración de Justicia à determinar las Causas con la brevedad mas posible, sin permitir dilaciones, ni suspender su curso, aunque por los Tribunales, y Jueces Superiores se les pide informe, con lo demàs que contiene" -- Catàleg manual de la Biblioteca Econòmica CarandellReial Cèdula de sa Majestat, a consulta del Consell ple, perque els tribunals, i Justícies del Regne, així ordinàries, com comissionades, o limitades a certes Causes, o Persones, procedeixin tenint en compte les Lleis Reials en l'administració de Justícia a determinar les Causes com més aviat millor, sense permetre dilacions, ni suspendre el seu curs, encara pels Tribunals, i Jutges Superiors se'ls demani informe, amb tot allò de més que conté.

A Handwritten Copy of an Indenture for a Property or Mortgage Transaction Between the Van Raaltes and Samuel B. Schieffelin

A handwritten copy of an indenture for a property or mortgage transaction between the Van Raaltes and Samuel B. Schieffelin. It may be a copy of the formal indenture of this date,https://digitalcommons.hope.edu/vrp_1850s/1360/thumbnail.jp

Concerning the Typology of Burushaski and the Roots of its Prefixes d- and n-

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