activity
20162023
most citedPrediction and observation of the first antiferromagnetic topological insulator

1.2k citations · 2k across the 17 of their papers we have counts for

collaborators

17 papers

cond-mat.mtrl-sci2023

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…

cond-mat.str-el2023★ 2 cited

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…

cond-mat.str-el2023

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…

cond-mat.mtrl-sci2023★ 1 cited

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…

cond-mat.mtrl-sci2022★ 6 cited

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…

cond-mat.str-el2022★ 9 cited

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…

cond-mat.str-el2020★ 25 cited

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…

cond-mat.str-el2020★ 62 cited

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}…

cond-mat.str-el2020★ 17 cited

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…

cond-mat.mes-hall2019★ 29 cited

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…

cond-mat.mtrl-sci2019★ 131 cited

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…

cond-mat.str-el2019★ 175 cited

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…

cond-mat.mtrl-sci2018★ 290 cited

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…

cond-mat.mtrl-sci2018★ 1.2k cited

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…

cond-mat.mes-hall2018★ 59 cited

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,…

cond-mat.str-el2016★ 38 cited

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…

cond-mat.str-el2016★ 19 cited

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…