Foreward for special issue of philosophical magazine on: topological correlated insulators and SmB6
نویسندگان
چکیده
منابع مشابه
Topological Doping of Correlated Insulators
A material which is an insulator entirely because of interaction effects is called a correlated insulator. Examples are trans-polyacetylene and the cuprate high temperature superconductors. Whereas doping of a band insulator results in a shift of the chemical potential into the conduction or valence band, doping of a correlated insulator produces fundamental changes in the electronic density of...
متن کاملCorrelated topological insulators with mixed valence.
We propose the local density approximation+Gutzwiller method incorporating a Green's function scheme to study the topological physics of correlated materials from the first principles. Applying this method to typical mixed valence materials SmB(6), we find its nontrivial Z(2) topology, indicating that SmB(6) is a strongly correlated topological insulator. The unique feature of this compound is ...
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We report anisotropic thermal expansion of the parent, AEFe2As2 (AE = Ba, Sr, and Ca), compounds. Above the structural/antiferromagnetic phase transition anisotropy of the thermal expansion coefficients is observed, with the coefficient along the a-axis being significantly smaller than the coefficient for the c-axis. The high temperature (200 K ≤ T ≤ 300 K) coefficients themselves have similar ...
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متن کاملSurface electronic structure of the topological Kondo-insulator candidate correlated electron system SmB6.
The Kondo insulator SmB6 has long been known to exhibit low-temperature transport anomalies whose origin is of great interest. Here we uniquely access the surface electronic structure of the anomalous transport regime by combining state-of-the-art laser and synchrotron-based angle-resolved photoemission techniques. We observe clear in-gap states (up to ~4 meV), whose temperature dependence is c...
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ژورنال
عنوان ژورنال: Philosophical Magazine
سال: 2016
ISSN: 1478-6435,1478-6443
DOI: 10.1080/14786435.2016.1247995