1.2k citations · 2k across the 17 of their papers we have counts for
17 papers
Control of the asymmetric band structure in Mn2Au by a ferromagnetic driver layer
Y. Lytvynenko, O. Fedchenko, S. V. Chernov +15
Hard X-ray angle-resolved photoemission spectroscopy reveals the momentum-resolved band structure in an epitaxial Mn2Au(001) film capped by a 2 nm thick ferromagnetic Permalloy lay…
Layer-resolved electronic behavior in a Kondo lattice system, CeAgAs2
Sawani Datta, Ram Prakash Pandeya, Arka Bikash Dey +6
We investigate the electronic structure of an antiferromagnetic Kondo lattice system CeAgAs2 employing hard x-ray photoemission spectroscopy. CeAgAs2, an orthorhombic variant of Hf…
Complexity in the hybridization physics revealed by depth-resolved photoemission spectroscopy of single crystalline novel Kondo lattice systems, CeCuX (X = As/Sb)
Sawani Datta, Ram Prakash Pandeya, Arka Bikash Dey +6
We investigate the electronic structure of a novel Kondo lattice system CeCuX2 (X = As/Sb) employing high resolution depth-resolved photoemission spectroscopy of high quality singl…
Intermixing-driven surface and bulk ferromagnetism in the quantum anomalous Hall candidate MnBiTe
Abdul V. Tcakaev, Bastian Rubrecht, Jorge I. Facio +19
The recent realizations of the quantum anomalous Hall effect (QAHE) in MnBiTe and MnBiTe benchmark the (MnBiTe)(BiTe) family as a promising hotb…
Clamping effect on temperature-induced valence transition in epitaxial EuPdSi thin films grown on MgO(001)
Sebastian Kölsch, Alfons Schuck, Olena Fedchenko +10
Bulk EuPdSi show a temperature-driven valence transisition of europium from +2 above 200 K to +3 below 100 K, which is correlated with a shrinking by approximat…
Giant spectral renormalization and complex hybridization physics in a Kondo lattice system, CeCuSb2
Sawani Datta, Ram Prakash Pandeya, Arka Bikash Dey +6
We investigate the electronic structure of a Kondo lattice system, CeCuSb2 exhibiting significant mass enhancement and Kondo-type behavior. We observe multiple features in the hard…
Incipient antiferromagnetism in the Eu-doped topological insulator BiTe
Abdul Tcakaev, Volodymyr B. Zabolotnyy, Celso I. Fornari +14
Rare earth ions typically exhibit larger magnetic moments than transition metal ions and thus promise the opening of a wider exchange gap in the Dirac surface states of topological…
Orbital Complexity in Intrinsic Magnetic Topological Insulators MnBiTe and MnBiTe
R. C. Vidal, H. Bentmann, J. I. Facio +16
Using angle-resolved photoelectron spectroscopy (ARPES), we investigate the surface electronic structure of the magnetic van der Waals compounds MnBiTe and MnBiTe$_{10}…
Ubiquitous impact of localised impurity states on the exchange coupling mechanism in magnetic topological insulators
Thiago R. F. Peixoto, Hendrik Bentmann, Philipp Rüßmann +27
Since the discovery of the quantum anomalous Hall effect in the magnetically doped topological insulators (MTI) Cr:(Bi,Sb)Te and V:(Bi,Sb)Te, the search for the exc…
Ultrafast molecular orbital tomography of a pentacene thin film using time-resolved momentum microscopy at a free-electron laser
K. Baumgärtner, M. Reuner, C. Metzger +19
We use time-resolved momentum microscopy at a free-electron laser (FEL) and extend orbital tomography into the time domain to image the electronic wave functions of excited molecul…
Topological electronic structure and intrinsic magnetization in MnBiTe: a BiTe-derivative with a periodic Mn sublattice
Raphael C. Vidal, Alexander Zeugner, Jorge I. Facio +23
Combinations of non-trivial band topology and long-range magnetic order hold promise for realizations of novel spintronic phenomena, such as the quantum anomalous Hall effect and t…
Surface states and Rashba-type spin polarization in antiferromagnetic MnBiTe
R. C. Vidal, H. Bentmann, T. R. F. Peixoto +32
The layered van der Waals antiferromagnet MnBiTe has been predicted to combine the band ordering of archetypical topological insulators such as BiTe with the magnet…
Chemical Aspects of the Antiferromagnetic Topological Insulator MnBiTe
Alexander Zeugner, Frederik Nietschke, Anja U. B. Wolter +25
Crystal growth of MnBiTe has delivered the first experimental corroboration of the 3D antiferromagnetic topological insulator state. Our present results confirm that th…
Prediction and observation of the first antiferromagnetic topological insulator
Mikhail M. Otrokov, Ilya I. Klimovskikh, Hendrik Bentmann +41
Magnetic topological insulators (MTIs) are narrow gap semiconductor materials that combine non-trivial band topology and magnetic order. Unlike their nonmagnetic counterparts, MTIs…
Systematics of electronic and magnetic properties in the transition metal doped SbTe quantum anomalous Hall platform
M F. Islam, C. M. Canali, A. Pertsova +19
The quantum anomalous Hall effect (QAHE) has recently been reported to emerge in magnetically-doped topological insulators. Although its general phenomenology is well established,…
Impurity states in the magnetic topological insulator V:(Bi,Sb)Te
Thiago R. F. Peixoto, Hendrik Bentmann, Steffen Schreyeck +12
The ferromagnetic topological insulator V:(Bi,Sb)Te has been recently reported as a quantum anomalous Hall (QAH) system. Yet the microscopic origins of the QAH effect and t…
Valence Characterization of Surface and Subsurface Region in SmB6
P. Lutz, M. Thees, T. R. F. Peixoto +4
Samarium hexaboride (SmB6), which lies in the mixed valence regime in the Anderson model, has been predicted to possess topologically protected surface states. The intensive invest…