Results 11 to 20 of about 847,090 (340)

Crystal Structure and Bonding in BaAu5Ga2 and AeAu4+xGa3–x (Ae = Ba and Eu): Hexagonal Diamond-Type Au Frameworks and Remarkable Cation/Anion Partitioning in the Ae–Au–Ga Systems

open access: closedInorganic Chemistry, 2014
Five new polar intermetallic compounds in the Ae-Ga-Au system (Ae = Ba, Eu), BaAu(5)Ga(2) (I), BaAu(4.3)Ga(2.7) (II), Ba(1.0)Au(4.5)Ga(2.4 )(III), EuAu(4.8)Ga(2.2) (IV), and Eu(1.1)Au(4.4)Ga(2.2) (V), have been synthesized and their crystal structures determined by single-crystal X-ray diffraction. I crystallizes in the orthorhombic crystal system with
Volodymyr Smetana   +4 more
semanticscholar   +6 more sources

Single-crystal hBN Monolayers from Aligned Hexagonal Islands

open access: yesNature Communications
Hexagonal boron nitride (hBN), as one of the few two-dimensional insulators, holds strategic importance for advancing post-silicon electronic devices and circuits.
Junzhu Li   +11 more
doaj   +2 more sources

Predicting sizes of hexagonal and gyroid metal nanostructures from liquid crystal templating [PDF]

open access: yesACS Nano, 2015
We describe a method to predict and control the lattice parameters of hexagonal and gyroid mesoporous materials formed by liquid crystal templating. In the first part, we describe a geometric model with which the lattice parameters of different liquid ...
Adam M. Squires   +5 more
core   +3 more sources

Fabrication and deterministic transfer of high quality quantum emitter in hexagonal boron nitride [PDF]

open access: yes, 2018
Color centers in solid state crystals have become a frequently used system for single photon generation, advancing the development of integrated photonic devices for quantum optics and quantum communication applications.
Buchler, Ben C.   +4 more
core   +5 more sources

Phonon-enhanced nonlinearities in hexagonal boron nitride [PDF]

open access: yesNature Communications, 2023
Polar crystals can be driven into collective oscillations by optical fields tuned to precise resonance frequencies. As the amplitude of the excited phonon modes increases, novel processes scaling non-linearly with the applied fields begin to contribute ...
Jared S. Ginsberg   +12 more
doaj   +2 more sources

Study of rhombohedral tricalcium phosphate in hexagonal crystal structure family on the sample prepared by the sol-gel route and the effect of calcination temperature [PDF]

open access: yesCerâmica, 2023
The effect of the calcination temperature at 800 and 1000 °C on the stable formation of the tricalcium phosphate with rhombohedral structure in the system of the hexagonal crystal family was determined, while its precursor was made from limestone ...
J. Ady   +3 more
doaj   +1 more source

Modulation of Cerium Carbonate Crystal Growth by Polyvinylpyrrolidone using Density Functional Theory

open access: yesActa Chimica Slovenica, 2022
Cerium carbonate crystal morphology is predicted using density functional theory (DFT) simulations in this paper. In the nucleation phase, the ketone group in polyvinylpyrrolidone (PVP) will preferentially bind to Ce3+ to form complexes and provide ...
Deyun Sun   +6 more
doaj   +1 more source

Molecular Insight into the Deformation of Single Crystal Copper Loaded by High-Speed Shock Wave

open access: yesMetals, 2021
Molecular dynamics simulations were performed to study the evolution of single crystal copper with and without a nanovoid (located at the middle of crystal with a diameter of ~2.9 nm) when loaded with shock waves of different velocities.
Changjiang Zhang   +5 more
doaj   +1 more source

A mechanical comparison of alpha and beta phase biomedical TiTa lattice structures

open access: yesMaterials & Design, 2021
Recent orthopaedic implant alloy design has focused on β-type Ti alloys, as the body centred cubic (BCC) crystal structure has the tendency to be characterised by a low elastic modulus.
Erin G. Brodie   +5 more
doaj   +1 more source

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