News tagged with crystal lattice
Exerting better control over matter waves
(PhysOrg.com) -- “The concept of matter waves is at the heart of quantum mechanics,” Oliver Morsch tells PhysOrg.com. “At the beginning of the last century, scientists discovered that solid particles could exhibit proper ...
Mar 27, 2009 |
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Crystal cantilever lifts objects 600 times its own weight (w/ Video)
(PhysOrg.com) -- For a long time, scientists have been trying to transform the collective movements of tiny molecules into useful mechanical work. With this goal in mind, a team of researchers from Japan has ...
Oct 01, 2010 |
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Made to order diamonds hold key to stunning laser discoveries
(PhysOrg.com) -- Diamond is best known for being a prized gem and the hardest cutting element available, but now thanks to research being carried out at Macquarie University it is also proving to be a super ...
Apr 22, 2010 |
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Graphene 2.0: A new approach to making a unique material
Since its discovery, graphene -- an unusual and versatile substance composed of a single-layer crystal lattice of carbon atoms—has caused much excitement in the scientific community. Now, Nongjian(NJ) Tao, ...
Nanotechnology / Nanomaterials
Jul 01, 2010 |
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Scientists prove unconventional superconductivity in new iron arsenide compounds
(PhysOrg.com) -- Scientists at U.S. Department of Energy's Argonne National Laboratory used inelastic neutron scattering to show that superconductivity in a new family of iron arsenide superconductors cannot ...
Jan 09, 2009 |
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Superconductivity's third side unmasked
The debate over the mechanism that causes superconductivity in a class of materials called the pnictides has been settled by a research team from Japan and China. Superconductivity was discovered in the pnictides ...
Jun 17, 2011 |
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Third research team close to creating Majorana fermion
(PhysOrg.com) -- Recently there has been a virtual explosion of research efforts aimed at creating the elusive Majorana fermion with different groups claiming to be near to creating them. First there was news that a team ...
Mar 16, 2012 |
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Stretching opens up possibilities for graphene
(PhysOrg.com) -- Researchers say they have found a simple way to improve the semiconducting properties of the world’s thinnest material - by giving it a good tug.
Nanotechnology / Nanomaterials
Sep 28, 2009 |
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Impact hypothesis loses its sparkle
Shock-synthesized diamonds said to prove a catastrophic impact killed off North American megafauna can't be found.
Space & Earth / Earth Sciences
Aug 30, 2010 |
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Producing graphene layers using crystallization
(PhysOrg.com) -- Ever since it's relatively recent discovery, graphene has generated a great deal of interest. Graphene is extracted from graphite in many cases, and consists of a sheet of carbon atoms bound together in a ...
Nanotechnology / Nanomaterials
Mar 02, 2010 |
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Simply Weird Stuff: Making Supersolids with Ultracold Gas Atoms
Physicists at the Joint Quantum Institute (JQI) of the National Institute of Standards and Technology and the University of Maryland have proposed a recipe for turning ultracold “boson” atoms—the ingredients ...
Jan 13, 2009 |
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New mechanism for superconductivity discovered in iron-based superconductors
(PhysOrg.com) -- A research team at RIKEN, Japan’s flagship research organisation has experimentally determined the mechanism underlying the formation of electron pairs in iron-based high-temperature superconductors. ...
Apr 22, 2010 |
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Under Observation -- Restless Atoms Cause Materials to Age
(PhysOrg.com) -- Atoms have the habit of jumping through solids - a practice that physicists have recently been able to follow for the first time using a brand new method. This scientific advance was made ...
Sep 14, 2009 |
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Single-crystal films could advance solar cells (w/ Video)
(PhysOrg.com) -- Cornell researchers have developed a new method to create a patterned single-crystal thin film of semiconductor material that could lead to more efficient photovoltaic cells and batteries.
Nanotechnology / Nanomaterials
Oct 08, 2010 |
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Keep on spinning: A persistent spin state that could revolutionize spintronics
(PhysOrg.com) -- By controlling the collective spin state of highly mobile electrons in semiconductors, researchers in the Materials Sciences Division (MSD) at the U.S. Department of Energy's Lawrence Berkeley ...
Apr 02, 2009 |
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Crystal structure
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a motif, a set of atoms arranged in a particular way, and a lattice. Motifs are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions. The points can be thought of as forming identical tiny boxes, called unit cells, that fill the space of the lattice. The lengths of the edges of a unit cell and the angles between them are called the lattice parameters. The symmetry properties of the crystal are embodied in its space group. A crystal's structure and symmetry play a role in determining many of its properties, such as cleavage, electronic band structure, and optical properties.
For more information about Crystal structure, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
