All About Chemistry... 2011 and beyond

News articles about "Topological"

Down the rabbit hole: How electrons travel through exotic new material

Researchers at Princeton University have observed a bizarre behavior in a strange new crystal that could hold the key for future electronic technologies Unlike most materials in which electrons travel on the surface in these ... - Read More

Building shape inspires new material discovery

Physicists inspired by the radical shape of a Canberra building have created a new type of material which enables scientists to put a perfect bend in light The creation of a so called topological insulator ... - Read More

The future of electronics, now in 2-D

The future of electronics could lie in a material from its past as researchers from The Ohio State University work to turn germanium the material of 1940s transistors into a potential replacement for silicon At ... - Read More

Exotic states materialize with supercomputers

Scientists used supercomputers to find a new class of materials that possess an exotic state of matter known as the quantum spin Hall effect The researchers published their results in the journal Science in December ... - Read More

Self-destructive effects of magnetically-doped ferromagnetic topological insulators

The discovery of topologically protected electrical conductivity on the surface of some materials whose bulk interior acts as an insulator was among the most sensational advances in the last decade of condensed matter physics with ... - Read More

Magic numbers of quantum matter revealed by cold atoms

Topology a branch of mathematics classifying geometric objects has been exploited by physicists to predict and describe unusual quantum phases the topological states of matter These intriguing phases generally accessible at very low temperature exhibit ... - Read More

Defects are perfect in laser-induced graphene

Researchers at Rice University have created flexible patterned sheets of multilayer graphene from a cheap polymer by burning it with a computer controlled laser The process works in air at room temperature and eliminates the ... - Read More

45-year physics mystery shows a path to quantum transistors

An odd iridescent material that's puzzled physicists for decades turns out to be an exotic state of matter that could open a new path to quantum computers and other next generation electronics Physicists at the ... - Read More

Physicists create new kind of pasta to explain mysterious, ring-shaped polymers

Two physicists from the University of Warwick have taken to the kitchen to explain the complexity surrounding what they say is one of the last big mysteries in polymer physics As a way of demonstrating ... - Read More

Scientists disprove theory that reconstructed boron surface is metallic

Scientific inquiry is a hit and miss proposition subject to constant checking and rechecking Recently a new class of materials was discovered called topological insulators nonmetallic materials with a metallic surface capable of conducting electrons ... - Read More

Special chromosomal structures control key genes

that is filled with roughly three meters of DNA As the instructions for all cell processes the DNA must be accessible to the cell’s transcription machinery yet be compressed tightly enough to fit inside the ... - Read More

New species of electrons can lead to better computing

In a research paper published this week in Science the collaboration led by MIT's theory professor Leonid Levitov and Manchester's Nobel laureate Sir Andre Geim report a material in which electrons move at a controllable ... - Read More

Molecules do the triple twist

They are three dimensional and yet single sided Moebius strips These twisted objects have only one side and one edge and they put our imagination to the test Under the leadership of Kiel University's chemist ... - Read More

Mapping behavior of charges in correlated spin-orbit coupled materials: Electronic disruption prods Mott insulator's conversion to metallic state

In a relatively recently discovered class of materials known as spin orbit Mott insulators theorists have predicted the emergence of new properties at points just beyond the insulating state when electronic manipulation can transform these ... - Read More

Natural 3-D counterpart to graphene discovered: New form of quantum matter

Quantum, Matter, Quantum, Matter
The discovery of what is essentially a 3D version of graphene the 2D sheets of carbon through which electrons race at many times the speed at which they move through silicon promises exciting new things ... - Read More

Viewing macro behaviors of ultra-cold quantum gases through the micro-world

Understanding collective behavior of ultra cold quantum gases is of great interest since it is intimately related to many encountered systems in nature such as human behavior swarms of birds traffic jam sand dunes neutron ... - Read More

New simulatable model displaying exotic quantum phenomena

Quantum, Quantum
It is fascinating how quantum mechanical behavior of particles at smallest scales can give rise to strange properties that can be observed in the classical world One example is the Fractional Quantum Hall Effect FQH ... - Read More

Spintronics: Nano magnets arise at 2-D boundaries

Magnets, Nano
When you squeeze atoms you don't get atom juice You get magnets According to a new theory by Rice University scientists imperfections in certain two dimensional materials create the conditions by which nanoscale magnetic fields ... - Read More

Determining the quantum geometry of a crystal

Physicists have succeeded in measuring geometric properties of energy bands in light crystals Geometrical phases occur in many places in nature One of the simplest examples is the Foucault pendulum a tall pendulum free to ... - Read More

Persuading light to mix it up with matter

Light, Matter, Matter, Light
Researchers at MIT have succeeded in producing and measuring a coupling of photons and electrons on the surface of an unusual type of material called a topological insulator This type of coupling had been predicted ... - Read More
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