The non-magnetic and ferromagnetic phases of 3D Wigner electron crystal are investigated using a localized representation of the electrons with NaCl and CsCl structures. The ground state energies of ferromagnetic and non-magnetic phases of Wigner electron crystal are computed in the range 10 u2264 ...
Epitaxial growth of BP compounds on Si substrates using the B2H6-PH3-H2system K. Shohno, M. Takigawa, T. Nakada Pages 193-196 select article Composition and structure of boron carbides prepared by CVD Research articleAbstract only Composition and structure of boron carbides prepared by CVD ...
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structure (碱金属卤化物或者称为岩盐结构), each point of the FCC lattice is assigned a basis of one unit of NaCl: Na (groupIatom) at(0,0,0)and Cl (groupVIIatom) ata(1/2,1/2,1/2)(or vice versa), as shown in the following figure. The coordination number of this structure is 6...
The arrangement of atoms, ions, or molecules in a crystal. Crystals are solids having, in all three dimensions of space, a regular repeating internal unit of structure. Crystals have been studied using x-rays, which excite signals from the atoms. The signals are of different strengths and de...
STRUCTURE OF SOLIDS 3.2.2.3 NaCl and CsCl Let us again consider the FCC Bravais lattice. If we now faithfully replace each point by a NaCl molecule motif, we can generate the common rocksalt structure depicted in Fig. 3-7. In a slight structural twist, the Cl atom (ion) is positioned ...
Regarding metal crystals, this app explains body-centered cubic lattice, face-centered cubic lattice, and hexagonal close-packed structure. Regarding ionic crystals, this app explains NaCl type, CsCl type, ZnS (zincblende) type, and CaF2 (fluorite) type. Regarding covalent crystals, this app expla...
Ionic crystals are structures composed of symmetrical organic cations and/or anions that exhibit different behavior during the melting process and have unique crystallinity. They are similar to plastic crystals and liquid crystals, but differ in their atomic charges and molecular structure. From: Journa...
Regarding metal crystals, this app explains body-centered cubic lattice, face-centered cubic lattice, and hexagonal close-packed structure. Regarding ionic crystals, this app explains NaCl type, CsCl type, ZnS (zincblende) type, and CaF2 (fluorite) type. ...
Figure 11.4.Crystal energy landscape of naproxen[47]. Each symbol represents a stable crystal structure, classified by chirality, hydrogen-bonding graph set and common packing motifs. The XPac-derived packing motif hierarchy is illustrated below, with the layer observed in the racemic structure (△)...