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Chemistry and computer science join forces to apply artificial intelligence to chemical reactions

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Chemistry and computer science join forces to apply artificial intelligence to chemical reactions
In the past few years, researchers have turned increasingly to data science techniques to aid problem-solving in organic synthesis.
Researchers in the lab of Abigail Doyle, Princeton’s A. Barton Hepburn Professor of Chemistry, have developed open-source software that provides them with a state-of-the-art optimization algorithm to use in everyday work, folding what’s been learned in the machine learning field into synthetic chemistry.
Princeton chemists Benjamin Shields and Abigail Doyle worked with computer scientist Ryan Adams (not pictured) to create machine learning software that can optimize reactions – using artificial intelligence to speed through thousands of reactions that chemists used to have to labor through one by one. ....

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Researchers Identify Novel Topological Properties in Cobalt Disulfide

Researchers Identify Novel Topological Properties in Cobalt Disulfide
Written by AZoMDec 21 2020
The Schoop Lab, which is heading an association of institutions both in the United States and overseas, has reported unexpected new topological characteristics of cobalt disulfide (CoS
2) a magnetic pyrite expanding one’s interpretation of electrical channels in this
extensively
2, in comparison to the theoretical prediction. Image Credit: Figure courtesy of the Schoop Lab.
The researchers used ab-initio calculations and angle-resolved photoelectron spectroscopy and observed that bulk CoS
2 contains Weyl nodes. These Weyl nodes enabled the team to make predictions about the surface properties of this material.
Within its band structure, the material contains Weyl-fermions and Fermi-arc surface states, which may allow it to act as a platform for unusual phenomena and also places it among materials candidates for applications in spintronic devices. ....

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'Magic' angle graphene and the creation of unexpected topological quantum states

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IMAGE: A Princeton-led team of physicists have discovered that, under certain conditions, interacting electrons can create what are called topological quantum states, which, has implications for many technological fields of study, especially.
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Credit: Kevin Nuckolls, Department of Physics, Princeton University
Electrons inhabit a strange and topsy-turvy world. These infinitesimally small particles have never ceased to amaze and mystify despite the more than a century that scientists have studied them. Now, in an even more amazing twist, physicists have discovered that, under certain conditions, interacting electrons can create what are called topological quantum states. This finding, which was recently published in the journal ....

Takashi Taniguchi , Thomasd Jones , Kevin Nuckolls , Michael Kosterlitz , Ali Yazdani , B Andrei Bernevig , Bilayer Graphene , Princetonians Andrei Bernevig , David Thouless , Kevinp Nuckolls , Kenji Watanabe , Dillon Wong , Duncan Haldane , Pablo Jarillo Herrero , Princeton Center , Elemental Strategy Initiative , Princeton Global Network Funds , Sherman Fairchild University Professor Of Physics , National Science Foundation Materials Research , Theoretical Science At Princeton University , Simons Foundation , Japan Ministry Of Education , Office Of Naval Research , Department Of Energy , Massachusetts Institute Of Technology , Schmidt Fund For Innovative Research ,

'Magic' angle graphene and creation of unexpected topological quantum states

'Magic' angle graphene and creation of unexpected topological quantum states
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