Settling the debate: Solving the electronic surface states of samarium hexaboride

Researchers at Osaka University show that samarium hexaboride is a topological insulator, which allows electrons to flow only along its exterior surface. Together with its strong electron correlations, this material has potential to be used in future spintronic quantum devices that utilize the spins of individual electrons. A team led by Osaka University used angle-resolved photoelectron spectroscopy to probe the unusual surface conductivity of samarium hexaboride crystals. They showed that the material is a co-existing phase of “topological insulator” in which electrical current can flow along the surface but not through the bulk of the sample, a “Kondo insulator”, which undergoes a metal-to-insulator transition due to the strong electron correlation. This work, which demonstrates that topological insulators can simultaneously have strong electron correlations, may allow for the development of quantum spin devices that use the magnetic spins of individual electrons to outperform curr

Settling the debate: Solving the electronic surface states of samarium hexaboride

A team led by Osaka University used angle-resolved photoelectron spectroscopy to probe the unusual surface conductivity of samarium hexaboride crystals. They showed that the material is a co-existing ...

Mon 10 Jun 19 from Phys.org

Settling the debate: Solving the electronic surface states of samarium hexaboride, Mon 10 Jun 19 from ScienceDaily

Settling the debate: Solving the electronic surface states of samarium hexaboride, Mon 10 Jun 19 from Eurekalert

Settling the Debate: Solving the Electronic Surface States of Samarium Hexaboride , Mon 10 Jun 19 from AlphaGalileo

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