Evidence of a stable binary CdCa quasicrystalline phase

Jiang, J. Z.; Jensen, C. H.; Rasmussen, A. R.; Gerward, L.
March 2001
Applied Physics Letters;3/26/2001, Vol. 78 Issue 13, p1856
Academic Journal
Quasicrystals with a primitive icosahedral structure and a quasilattice constant of 5.1215 Å have been synthesized in a binary Cd-Ca system. The thermal stability of the quasicrystal has been investigated by in situ high-temperature x-ray powder diffraction using synchrotron radiation. It is demonstrated that the binary CdCa quasicrystal is thermodynamic stable up to its melting temperature. The linear thermal expansion coefficient of the quasicrystal is 2.765x10[sup -5] K[sup -1]. © 2001 American Institute of Physics.


Related Articles

  • Gosset helicoids: I. 8D crystallographic lattice E 8 and crystallographic, quasi-crystallographic, and fractional helicoidal axes determined by this lattice. Samoĭlovich, M.; Talis, A. // Crystallography Reports;Jul2007, Vol. 52 Issue 4, p574 

    It is shown that mapping of substructures of a semiregular Gosset polytope, whose 240 vertices form the first coordination sphere of a 8D lattice E 8, determines the orders of p/d axes of helicoids that are set only by invariants of (sub)algebras. Axes of such (Gosset) helicoids are derived....

  • Laminating Lattices with Symmetrical Glue. Elser, Veit; Gravel, Simon // Discrete & Computational Geometry;Feb2010, Vol. 43 Issue 2, p363 

    We use the automorphism group Aut( H), of holes in the lattice L8= A2 ⊕ A2 ⊕ D4, as the starting point in the construction of sphere packings in 10 and 12 dimensions. A second lattice, L4= A2 ⊕ A2, enters the construction because a subgroup of Aut( L4) is isomorphic to Aut( H)....

  • Visibility and Directions in Quasicrystals. Marklof, Jens; Strömbergsson, Andreas // IMRN: International Mathematics Research Notices;2015, Vol. 2015 Issue 15, p6588 

    It is well known that a positive proportion of all points in a d-dimensional lattice is visible from the origin, and that these visible lattice points have constant density in ℝd. In the present paper, we prove an analogous result for a large class of quasicrystals, including the vertex...

  • A photonic thermalization gap in disordered lattices. Kondakci, H. Esat; Abouraddy, Ayman F.; Saleh, Bahaa E. A. // Nature Physics;Nov2015, Vol. 11 Issue 11, p930 

    The formation of gaps-forbidden ranges in the values of a physical parameter-is common to a variety of physical systems: from energy bandgaps of electrons in periodic lattices and their analogues in photonic, phononic and plasmonic systems to pseudo-energy gaps in aperiodic quasicrystals. Here,...

  • Dense Periodic Packings of Tetrahedra with Small Repeating Units. Kallus, Yoav; Elser, Veit; Gravel, Simon // Discrete & Computational Geometry;Sep2010, Vol. 44 Issue 2, p245 

    We present a one-parameter family of periodic packings of regular tetrahedra, with the packing fraction 100/117�0.8547, that are simple in the sense that they are transitive and their repeating units involve only four tetrahedra. The construction of the packings was inspired from results of...

  • Interfacial energies on quasicrystals. Braides, Andrea; Causin, Andrea; Solci, Margherita // IMA Journal of Applied Mathematics;Dec2012, Vol. 77 Issue 6, p816 

    We consider nearest-neighbour ferromagnetic energies defined on a quasicrystal modeled following the so-called cut-and-project approach as a portion of a regular lattice contained in a possibly irrational stripe defined as a neighborhood of a k-dimensional subspace in an n-dimensional space. The...

  • Free Path Lengths in Quasicrystals. Marklof, Jens; Strömbergsson, Andreas // Communications in Mathematical Physics;Sep2014, Vol. 330 Issue 2, p723 

    Previous studies of kinetic transport in the Lorentz gas have been limited to cases where the scatterers are distributed at random (e.g., at the points of a spatial Poisson process) or at the vertices of a Euclidean lattice. In the present paper we investigate quasicrystalline scatterer...

  • A simpler approach to Penrose tiling with implications for quasicrystal formation. Steinhardt, Paul J.; Jeong, Hyeong-Chai // Nature;8/1/1996, Vol. 382 Issue 6590, p431 

    Presents a simple approach to Penrose tiling, a model of quasicrystal structure. Assertion that a quasiperiodic tiling can be forced using only a single type of tile; Sufficiency of maximizing the density of a chosen cluster of tiles to produce a quasiperiodic tiling.

  • An approximate solution of the monomer–dimer problem on a square lattice. II. Phares, Alain J.; Shaw, Donald E.; Wunderlich, Francis J. // Journal of Mathematical Physics;Jul85, Vol. 26 Issue 7, p1762 

    The mathematical method developed in paper I is applied to obtain the partition function and thermodynamical properties of the monomer-dimer problem for a square lattice in terms of the absolute activity x. We also obtain by extrapolation an approximate expression of the partition function which...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics