Search Results - "Treacy, M.M.J"
-
1
A geometric solution to the largest-free-sphere problem in zeolite frameworks
Published in Microporous and mesoporous materials (20-03-2006)“…We have applied Delaunay triangulation to models of the known zeolite frameworks. We show that this well-established technique from computational geometry…”
Get full text
Journal Article -
2
Enumeration of periodic tetrahedral frameworks. II. Polynodal graphs
Published in Microporous and mesoporous materials (20-09-2004)“…In a previous study, we developed a database of periodic 4-connected graphs [Zeit. Kristallogr. 212 (1997) 768]. The database was built using a symmetry…”
Get full text
Journal Article -
3
Atom pair persistence in disordered materials from fluctuation microscopy
Published in Ultramicroscopy (01-06-2000)“…We show that the kinematical theory of fluctuation microscopy for a disordered specimen can be reformulated in terms of an atom pair–pair correlation function…”
Get full text
Journal Article -
4
Pt agglomeration and entombment in single channel zeolites: Pt/LTL
Published in Microporous and mesoporous materials (01-04-1999)“…This paper presents a transmission electron microscopy study of the role of Pt agglomeration and channel blockage in the deactivation of Pt/K-zeolite L…”
Get full text
Journal Article -
5
Fluctuation microscopy analysis of amorphous silicon models
Published in Ultramicroscopy (01-05-2017)“…•Studied competing computer models for amorphous silicon and simulated fluctuation microscopy data.•Show that only paracrystalline/random network composite can…”
Get full text
Journal Article -
6
Describing ordered microporous and mesoporous materials
Published in Microporous and mesoporous materials (18-02-2003)Get full text
Journal Article -
7
Packing sticky hard spheres into rigid zeolite frameworks
Published in Microporous and mesoporous materials (01-02-2009)“…We describe a procedure for estimating the packing of spheres into rigid zeolite frameworks. Our method accomplishes the packing by placing spheres inside the…”
Get full text
Journal Article -
8
A surprise in the first Born approximation for electron scattering
Published in Ultramicroscopy (01-08-2012)“…A standard textbook derivation for the scattering of electrons by a weak potential under the first Born approximation suggests that the far-field scattered…”
Get full text
Journal Article -
9
When structural noise is the signal: Speckle statistics in fluctuation electron microscopy
Published in Ultramicroscopy (01-02-2007)“…In a recent paper, Jungk et al. [Ultramicroscopy 104 (2005) 206–219] conclude that standard fluctuation electron microscopy speckle analysis, which examines…”
Get full text
Journal Article -
10
Medium-range order in molecular materials: Fluctuation electron microscopy for detecting fullerenes in disordered carbons
Published in Ultramicroscopy (2009)“…During a fluctuation electron microscopy (FEM) study of disordered carbons, we found that samples containing C 60 exhibit a normalized variance peak at 7.1 nm…”
Get full text
Journal Article -
11
Paracrystallites found in evaporated amorphous tetrahedral semiconductors
Published in Journal of non-crystalline solids (01-07-1998)“…Variable coherence microscopy shows that as-deposited amorphous germanium and silicon contain medium-range order. The ordering can be explained by a…”
Get full text
Journal Article -
12
Fluctuation X-ray microscopy: a novel approach for the structural study of disordered materials
Published in Journal of microscopy (Oxford) (2007)“…Measuring medium-range order is a challenging and important problem in the structural study of disordered materials. We have developed a new technique,…”
Get full text
Journal Article -
13
An efficient method for determining zeolite vertex symbols
Published in Microporous and mesoporous materials (09-01-2006)“…We present an efficient method for computing the topological vertex symbols of zeolite frameworks. The algorithm gets its efficiency by dividing the problem…”
Get full text
Journal Article -
14
A simple geometric structure optimizer for accelerated detection of infeasible zeolite graphs
Published in Microporous and mesoporous materials (28-07-2006)“…We describe a geometric structure optimizer that rapidly establishes whether or not SiO 4 units in a hypothetical zeolite framework can exist as…”
Get full text
Journal Article -
15
Medium range order and the radial distribution function
Published in Journal of non-crystalline solids (01-02-2006)“…We have studied the subtle differences between the radial distribution functions g(r) of several models of disordered silicon, which contain differing amounts…”
Get full text
Journal Article -
16
Fluctuation microscopy – a tool for examining medium-range order in noncrystalline systems
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-08-2005)“…Fluctuation microscopy examines the spatial variations in coherent microdiffraction from an ensemble of small volumes in noncrystalline systems. The variance…”
Get full text
Journal Article -
17
Increased medium-range order in amorphous silicon with increased substrate temperature
Published in Journal of non-crystalline solids (01-11-2001)“…Using fluctuation electron microscopy, we have measured the medium-range order of magnetron sputtered silicon thin films as a function of substrate temperature…”
Get full text
Journal Article -
18
Schläfli cluster topological analysis of medium range order in paracrystalline amorphous semiconductor models
Published in Journal of non-crystalline solids (01-05-2000)“…We show that topologically crystalline regions in computer models of amorphous materials can be identified by examining the Schläfli cluster associated with…”
Get full text
Journal Article -
19
Random stacking of a commensurate guest layer in an ordered host: NiAl layer-double-hydroxides
Published in Solid state communications (01-03-1997)“…In the solid solution layer double hydroxides with the general composition [Ni 1− x Al x (OH) 2] [ ( CO 3) x 2 ·y H 2O ], 0 ≤ x ≤ 0.4 the Ni 2+Al 3+ ions…”
Get full text
Journal Article -
20
Novel structural properties of Ni1 − x Alx layer double hydroxides
Published in The Journal of physics and chemistry of solids (01-06-1996)Get full text
Journal Article