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That’s what you will find out after reading this story:
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Graffen is stronger than steel and better copper conductor, so scientists are particularly interested in two -dimensional material.
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In the new document, scientists found that by applying its dirac point, the moment when the material is neither metal nor an insulator – the graph does not leave the Wiedemann – Franz law, which states that the ratio of metal thermal and electric conductivity is proportional to temperature.
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This makes the graphene a potentially inexpensive platform for researching issues with high energy physics and astrophysics.
For the first time in 2004 Prepared by scientists Andre Geim and Konstantin Novoselov (who won the Nobel Prize for Physics for their efforts in 2010), graphenene-Dvimsti material made of carbon atoms-newly described as “.magic”And a”Wonderful material“For being stronger than steel and Better conductor than copper. Two decades later, graphene is finally found in various industries and is likely to play a key role in future technology.
Now a new document of the Indian Institute of Science (IISC) in Bengalu, India and the National Institute for Material Science in Japan shows that Graphen’s miracles have never stopped. They found out that when the composition of the graphene electron is compatible with the T0, its dirac point is the moment when the material is neither metal nor an insulator – the subatomic structure behaves like quantum fluid.
In fact, it even approached the “perfect liquid” properties, that is, when the material has no viscosity. It is very much like quark-gluon plasmaThe subatomic primordial soup of the universe, which after the big explosion, made up part of a second (and also form a large Hadron collective intestinal ceral).
Perhaps it is even more surprising that graphene seems to have disregarded the established rules of physics, known as the Wiedemann-Franz law, which states that the ratio of metal thermal and electric conductivity is proportional to temperature. Instead they found reverse the relationship that formed a 200 times deviation From this law. In other words, thermal conductivity increased as electric conductivity (and vice versa) decreased. The results of the study were published in the magazine Nature physics;
“It’s amazing that even after 20 years there is so much to do,” said Arindam Ghosh, one of the IISC research co-authors.
Despite the dramatic nature, this breakdown of Wiedemann – Franz’s law was not completely unexpected. 2016 A study published in the magazine Science He noted that graphene showed such behavior at Dirac’s point. However, this study takes a little further, stating that this is the first time that the generally applied experimental electricity conductivity assessment has been possible.
“Our experiment deals with the lack of high quality graphene as some unifying physics concepts test beds,” the authors wrote.
Researchers now see graphene as a potentially inexpensive platform for exploring the concepts of high energy physics and astrophysics, including the thermodynamics of black hole and the scale of entropy. Graffen can also become an extremely powerful quantum sensor as it can detect extremely weak magnetic fields.
In other words, about 20 years after its discovery, the full potential of graphene must still be fully implemented.
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