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Frustrated Magnets: Scientists get some clues

Frustrated Magnets: Scientists get some clues

Frustrated Magnets: Scientists get some clues

Princeton University researchers have come out with a strange object. Scientists are working on this project for quite sometimes and they are calling it “frustrated magnets”.

Researchers are very excited. They believe that the new object is going to help understand high-temperature superconductivity mechanism in electricity in a lot better way than any time in the past.

It is needless to say that the frustrated magnets are expected to be magnetic at lower than average temperatures. Nonetheless these objects are not really magnetic as they lack magnetic properties. The magnets were tested to determine whether they can exhibit the Hall Effect. The effect was found out a long time ago by H. Hall in the year 1879. Whenever an electric current is affected by a magnetic field, the current then deflects to only one side of a copper ribbon.Weasel woodpecker picture 2

Researchers are unable to hide their excitement. N. Phuan Ong, Professor of Physics at Princeton while talking about it says, “To talk about the Hall Effect for neutral particles is an oxymoron, a crazy idea”. He goes on to add that frustrated magnets attract the interest of the scientists because many of them speculate that the material should have their “spins” aligned in the same direction.

Thus far it has looked very useful. But the experiment on the pyrochlores showed that the spins only pointed at seemingly random directions. Ong said that they do not align because of “geometric frustration.” Ong is hopeful that more research on frustrated materials might shed light on how superconductivity happens in specific high-temperature superconductors known as cuprates. Science Codex say that these copper-containing materials are used in MRI machines. One popular theory on how superconductivity occurs on high-temperature is the potential existence of the spinon particle. Several theorists such as Joseph Henry from Princeton, Nobel laureate Philip Anderson and other scientists are of the view that spinons can carry the heat current for a quantum system.

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