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Article
Open AccessDynamic fingerprint of fractionalized excitations in single-crystalline Cu3Zn(OH)6FBr
Beyond the absence of long-range magnetic orders, the most prominent feature of the elusive quantum spin liquid (QSL) state is the existence of fractionalized spin excitations, i.e., spinons. When the system o...
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Article
Open AccessA continuous metal-insulator transition driven by spin correlations
While Mott insulators induced by Coulomb interactions are a well-recognized class of metal-insulator transitions, insulators purely driven by spin correlations are much less common, as the reduced energy scale...
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Article
Open AccessAntisymmetric linear magnetoresistance and the planar Hall effect
The phenomena of antisymmetric magnetoresistance and the planar Hall effect are deeply entwined with ferromagnetism. The intrinsic magnetization of the ordered state permits these unusual and rarely observed m...
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Article
Open AccessScaling and data collapse from local moments in frustrated disordered quantum spin systems
Recently measurements on various spin–1/2 quantum magnets such as H3LiIr2O6, LiZn2Mo3O8, ZnCu3(OH)6Cl2 and 1T-TaS2—all described by magnetic frustration and quenched disorder but with no other common relation—nev...
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Article
Direct optical detection of Weyl fermion chirality in a topological semimetal
Measuring the photocurrent response to circularly polarized mid-infrared light provides direct access to the chirality of Weyl fermions in Weyl semimetals — the property responsible for a range of exotic pheno...
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Article
Selective scattering between Floquet–Bloch and Volkov states in a topological insulator
Time- and angle-resolved photoelectron spectroscopy experiments are used to monitor the transition between Floquet–Bloch and Volkov states in the topological insulator Bi2Se3.
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Article
Theory of High Temperature Superconductivity: A Status Report
This talk briefly reviews the current experimental and theoretical developments in high Tc superconductivity, focusing on the pseudogap regime of the underdoped region of the phase diagram.We argue that the appea...
