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Multi hole bands and quasi 2-dimensionality in Cr2Ge2Te6 studied by angle-resolved photoemission spectroscopy
T. Yilmaz, R. M. Geilhufe, I. Pletikosić +5
In the present work, we investigate the electronic structure of the two-dimensional (2D) ferromagnet Cr2Ge2Te6 by photoemission spectroscopy and ab initio calculations. Our results…
A New Magnetic Topological Quantum Material Candidate by Design
Xin Gui, Ivo Pletikosic, Huibo Cao +9
Magnetism, when combined with an unconventional electronic band structure, can give rise to forefront electronic properties such as the quantum anomalous Hall effect, axion electro…
Realization of a Type-II Nodal-Line Semimetal in MgBi
Tay-Rong Chang, Ivo Pletikosic, Tai Kong +9
Nodal-line semimetals (NLSs) represent a new type of topological semimetallic beyond Weyl and Dirac semimetals in the sense that they host closed loops or open curves of band degen…
Band structure of a IV-VI black phosphorus analogue, the thermoelectric SnSe
I. Pletikosić, F. von Rohr, P. Pervan +4
The success of black phosphorus in fast electronic and photonic devices is hindered by its rapid degradation in presence of oxygen. Orthorhombic tin selenide is a representative of…
A strong-topological-metal material with multiple Dirac cones
Huiwen Ji, I Pletikosić, Q. D. Gibson +3
We report a new, cleavable, strong-topological-metal, Zr2Te2P, which has the same tetradymite-type crystal structure as the topological insulator Bi2Te2Se. Instead of being a semic…
Surface-state-dominated transport in crystals of the topological crystalline insulator In-doped PbSnTe
Ruidan Zhong, Xugang He, John A. Schneeloch +8
Three-dimensional topological insulators and topological crystalline insulators represent new quantum states of matter, which are predicted to have insulating bulk states and spin-…
Electronic structure basis for the titanic magnetoresistance in WTe
I. Pletikosić, Mazhar N. Ali, A. Fedorov +2
The electronic structure basis of the extremely large magnetoresistance in layered non-magnetic tungsten ditelluride has been investigated by angle-resolved photoelectron spectrosc…
Comparison of Sn-doped and nonstoichiometric vertical-Bridgman-grown crystals of the topological insulator Bi2Te2Se
S. K. Kushwaha, Q. D. Gibson, J. Xiong +6
A comparative study of the properties of topological insulator Bi2Te2Se (BTS) crystals grown by the vertical Bridgeman method is described. Two defect mechanisms that create accept…
Graphene on Ir(111) characterized by angle-resolved photoemission
M. Kralj, I. Pletikosic, M. Petrovic +7
Angle resolved photoelectron spectroscopy (ARPES) is extensively used to characterize the dependence of the electronic structure of graphene on Ir(111) on the preparation process.…
Dirac Cones and Minigaps for Graphene on Ir(111)
I. Pletikosic, M. Kralj, P. Pervan +5
Epitaxial graphene on Ir(111) prepared in excellent structural quality is investigated by angle-resolved photoelectron spectroscopy. It clearly displays a Dirac cone with the Dirac…