updated Tue. August 13, 2024
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Rapaport
December 26, 2017
Inclusions can consist of other mineral crystals that look like what they are called — for example, a break in the crystal lattice is called a feather because it can resemble the texture of a feather. A pinpoint inclusion is just that — it looks like a pinpoint — while thin, elongated inclusions are called needles.
Inverse
December 21, 2017
When pure water forms ice, it forms a crystal lattice structure. When salt or beet juice is thrown in the mix, it disrupts this crystal. On a molecular level, this happens because the salt ... As you lower the temperature some of the pure water starts to form ice crystals. The reason is that although the frozen waterÃÂ ...
Science Daily
December 12, 2017
Nanorods made of bismuth sulfide kill tumor cells with heat when they are irradiated with near-infrared light (NIR). Chinese scientists are now making these weapons more powerful by remodeling the defect state of the nanorod crystal lattice by adding gold nanodots. As reported in the journal AngewandteÃÂ ...
New Electronics
December 12, 2017
Heusler's alloys with baffling properties were the start of the discovery of several classes of material where symmetry is fundamental to controlling the behaviour of the electrons that move through the crystal lattice. The key to these novel properties lies in the interaction between the symmetry of ions held inÃÂ ...
Phys.Org
December 8, 2017
Sequence of the phase transition from diamond to graphite. Credit: DESY, Nikita Medvedev. There are two possible paths: the common so-called thermal transition during which the absorbed energy is transferred to the internal crystal lattice of the diamond until it re-organises itself into the graphite structure.
Open Access Government
December 7, 2017
The abundance of fishes both in the Arctic and Antarctic swimming amongst ice crystals indicates that they can avoid freezing (Figure 1). ... This lattice matching found in some of the AFPs is thought to be involved in their recognition of specific ice crystal planes and involved in their adsorption to the iceÃÂ ...
Cornell Chronicle
December 7, 2017
The atoms are arranged in a lattice, or framework, that is stable in the material's normal state. For this work, Kourkoutis' group examined their manganite while in a charge- ordered state. STEM imaging revealed miniscule shifts in a single crystal's atomic lattice, which could be measured by comparingÃÂ ...
Firstpost
December 11, 2017
Google is celebrating German physicist Max Born's contribution to the field of quantum mechanics in the form of a Doodle. Quantum mechanics is a part of physics which studies matter at its smallest form. The German physicist's contribution led to a number of inventions in the field of medicine as well asÃÂ ...
Outlook India
December 11, 2017
There are two possible paths: the common so-called thermal transition during which the absorbed energy is transferred to the internal crystal lattice of the diamond until it re-organises itself into the graphite structure. Another is a non-thermal mode, where the energy absorbed by just a small fraction of theÃÂ ...
Phys.Org
December 9, 2017
Sequence of the phase transition from diamond to graphite. Credit: DESY, Nikita Medvedev. There are two possible paths: the common so-called thermal transition during which the absorbed energy is transferred to the internal crystal lattice of the diamond until it re-organises itself into the graphite structure.
nanotechweb.org
December 8, 2017
The first investigates Bragg diffraction, a fundamental interaction between electrons and matter that involves the conversion of crystal momentum into electron momentum as an incoming electron is scattered by the crystal lattice. The researchers used attosecond-resolved diffraction of single-crystal silicon toÃÂ ...
SpaceFlight Insider
December 8, 2017
Movements or bends in the material take the crystal atomic lattice and reorient it, or transition it, from one crystal lattice to an entirely different crystal lattice. ... This means that while the spring steel can withstand 0.3 percent of strain before it dents and the crystals permanently rearrange, the NiTi shapeÃÂ ...
Science Magazine
December 8, 2017
Polishchuk et al. found that the single-crystal calcite lenses contained arrays of calcite nanoprecipitates, ∼5 nm in diameter, that have a higher magnesium content than the host crystal. Further investigation revealed that these nanoprecipitates were coherent with the host, meaning that the crystal latticeÃÂ ...
Cornell Chronicle
December 8, 2017
The atoms are arranged in a lattice, or framework, that is stable in the material's normal state. For this work, Kourkoutis' group examined their manganite while in a charge- ordered state. STEM imaging revealed miniscule shifts in a single crystal's atomic lattice, which could be measured by comparingÃÂ ...
Eos
December 5, 2017
Even crystalline matter is typically porous to gases with small enough molecules or atoms, such as helium, which diffuse through the crystal lattice structure. What kind of substances flow, or are transported, through porous media? The way that water moves through plant tissue and soil is an example of flow ...
pv magazine International
December 4, 2017
These should normally allow high levels of electricity conduction because fluorine atoms substituted on oxygen lattice sites are each expected to give an ... fluorine atoms that provide an additional free electron, another one occupies a normally unoccupied lattice position in the tin dioxide crystal structure.
nanotechweb.org
December 4, 2017
The tribo- or piezoelectric properties of a material are determined by the crystallographic symmetry of the material, and vanish when the crystal lattice has a centre of symmetry. However, the Clemson research team built on previous work by researchers in Japan showing they could remove the centre of ...
MIT News
December 4, 2017
And even today, there are still significant aspects of exactly how neutrons from nuclear reactions scatter through the crystal lattice of graphite. In fact, Smith says, a new physics model to describe these interactions has recently been proposed, and using the graphite pile “we want to design experiments to ...
IEEE Spectrum
December 4, 2017
Microstructured optical fibers used in pressure sensing measurements. (a) Photonic-crystal fiber1; (b) microstructured fiber with a triangular lattice of holes2; (c) side-hole photonic-crystal fiber3. Typically, microstructured optical fibers for pressure sensors are configured so that the application of an external load causes an ...
Science Daily
December 1, 2017
Diamond is a form of pure carbon in which the atoms are arranged in a crystal lattice, with each carbon atom surrounded by four other carbons at the corners of a tetrahedron. The carbon-carbon bonds in diamond are known as sp3 bonds. The orderly arrangement of tetrahedral structures which repeats ...
MENAFN.COM
November 20, 2017
The globalPhotonic Crystals Marketresearch report is classified on the ... crystal segment is of great concern due to the dimensional lattice ...
The Spokesman-Review
November 19, 2017
Most snowflakes are agglomerations of irregular crystals. ... composition (H20), and orderly arrangement of its atoms in a lattice. ... It's known that snow crystal shapes are largely determined by temperature and humidity.
R & D Magazine
November 18, 2017
Germanium (Ge) is generally grown on expensive single-crystal substrates, adding ... however, is a challenge because the crystal lattices typically don't align. ... In addition to alleviating the constraints of lattice matching, vdWÂ ...
AZoM
November 17, 2017
Eventually, the high cost of developing germanium crystals concealed its efficiency, and silicon thus captured the field. However, this supremacy is ... The atoms in semiconducting materials must be steadily arranged in a precise crystal lattice in order to efficiently conduct electrical charge. To produce thatÃÂ ...
ECNmag.com
November 17, 2017
Ultimately, the high cost of developing germanium crystals eclipsed its ... materials must be consistently arranged in a precise crystal lattice.
UNLV NewsCenter
November 17, 2017
Modern reviews on crystal growth and defects in crystals overlook the fact that ... with twisted and bent morphologies and curved crystal lattices.
International Business Times
November 8, 2017
The difference between Coulomb crystals and normal crystals is that every charge at the nodes in the lattice interact with each other through ...
Science Daily
November 7, 2017
A Coulomb crystal forms when bare atomic nuclei align into a lattice at densities and temperatures where the average kinetic energy of ions is ...
WIRED
November 5, 2017
In a crystal, atoms are linked by chemical bonds. In origami, vertices are linked by creases. Even with a lattice as small as 10 units wide, Assis said, such a ... Defects appear in crystals when you crank up the temperature.
Phys.Org
October 25, 2017
The sliding of a perfect twin boundary, with mirrored crystal lattices on ... up of an orderly three-dimensional array of atoms in a lattice structure, ...
MIT News
October 24, 2017
... and providing insight into lattice dynamics, structural phase transitions, ... of solid-state chemical reactions, crystals near phase transitions, ...
Science Daily
October 24, 2017
... currents, are unable to reach their lowest energy state due to the way they are geometrically arranged on the material's crystal lattice.
Science Daily
October 20, 2017
Earlier this year, the same team solved the crystal structure of LSD bound ... a tightly packed crystal lattice, then shoot x-rays at the crystal and can ... were packed tightly into crystals that could then be bombarded with x-rays.
Science Daily
October 20, 2017
... applied physics, and astronomy at Rensselaer Polytechnic Institute, has built a nanostructure whose crystal lattice bends light as it enters the ...
Phys.Org
October 19, 2017
This means that an external electric field distorts the crystal lattice, whereas conversely, mechanical forces on the lattice can create electric ...
Nature.com
October 18, 2017
However, polarons — excess charges trapped in the crystal lattice — can also be at the origin of surface reconstructions, as Cesare Franchini, ...
IEEE Spectrum
October 13, 2017
The other was a triangular lattice with cylindrical air holes. Kante compares the different crystals to a bagel and a pretzel; though they're both ... In a photonic crystal topological insulator, the flow of light is restricted to the place ...
Lehigh University Engineering News
October 11, 2017
... when adjoining lattices (the 3D arrangement of atoms inside a crystal) of ... adjoining grains and no matching of the adjacent crystal lattices.
The Engineer
October 11, 2017
X-rays can penetrate crystals and the lattice structures of metals and their ... These are not the single-crystal cast blades that operate in the ...
ScienceNordic
October 10, 2017
In a glass, molecules are arranged randomly, rather than in an ordered crystal lattice. But what actually happens during the setting process?
Lehigh University Engineering News
October 10, 2017
... adjoining grains and no matching of the adjacent crystal lattices. .... of crystals and that they have very interesting physical properties.
Science Magazine (blog)
October 4, 2017
If you have a crystal (we'll come back to that phrase) you can pass X-rays through it and see the arrangement of spots that its crystal lattice has scattered .... He found a way to keep crystals from forming in electron microscopy ...
Science Daily
October 2, 2017
This provides a direct route for solving new X-ray crystal structures of ... where millions of molecules have to arrange in a well-defined lattice.
Phys.Org
September 27, 2017
Crystals containing dislocations sources (loops) are subjected to uniaxial ... "We can see the crystal lattice in all details and how it changes ...
Phys.Org
September 22, 2017
"They started with a known crystal lattice, in this case, a diamond, and substituted every carbon atom with an aluminum tetrahedron.".
Phys.Org
September 21, 2017
In this diagram, the atomic lattice of a crystal of barium oxide is depicted, ... in electrically stimulated defective crystals," says Cesare Franchini, ...
Xinhua
December 31, 1999
The researchers from the UC Berkeley-managed Lawrence Berkeley National Laboratory have been using ultrafast laser pulses in studying the material's interactions among the electrons and with the crystal's atomic lattice in the time domain, which highlights the microscopic dynamics of quantum materials ...
Science Daily
December 31, 1999
Because LED semiconductor materials are crystals, the atoms that make them up must be arranged in specific regular distances apart from each other. That regular spacing of atoms in crystals is called the lattice parameter. When crystalline materials are grown in layers on top of one another, their lattice ...
Science Daily
December 31, 1999
The HEA single crystals consists of nine HEA molecules with two acetone and one water molecules in the lattice. ... Thus, before the organic single crystals melt, the acetone and water molecules (primer to trigger explosion) are released outside, HEA molecules in the crystal lattice start rearranging and this ...
Lawrence Berkeley National Laboratory
December 31, 1999
“The crystal lattice strongly distorts around the charge stripes,” said Giacomo Coslovich, who did the work while he was a postdoctoral researcher at Berkeley Lab. “This change of the crystal symmetry results in new lattice vibrations, which we can in turn detect with light at terahertz frequencies.”.
