activity
20182020
collaborators

7 papers

cond-mat.str-el2020

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.mtrl-sci2020

Morphology Control in van der Waals Epitaxy of Bismuth Telluride Topological Insulators

Celso I. Fornari, Eduardo Abramof, Paulo H. O. Rappl +2

Bismuth telluride have regained significant attention as a prototype of topological insulator. Thin films of high quality have been investigated as a basic platform for novel spint…

cond-mat.mtrl-sci2020

Hybrid reflections from multiple x-ray scattering in epitaxial bismuth telluride topological insulator films

Sergio L. Morelhao, Stefan Kycia, Samuel Netzke +3

Epitaxial films of bismuth telluride topological insulators have received increasing attention due to potential applications in spintronic and quantum computation. One of the most…

cond-mat.mtrl-sci2020

Hypergiant spin polarons photogenerated in ferromagnetic europium chalcogenides

X. Gratens, Yunbo Ou, J. Moodera +2

We find that in the ferromagnetic semiconductor EuS, near its Curie temperature, a single band-edge photon generates a spin polaron (SP), whose magnetic moment approaches 20,000 Bo…

cond-mat.mtrl-sci2019

Lateral lattice coherence lengths in thin films of bismuth telluride topological insulators, with overview on polarization factors for X-ray dynamical diffraction in monochromator crystals

Sergio L. Morelhao, Stefan Kycia, Samuel Netzke +3

In the supporting information file for article Dynamics of Defects in van der Waals Epitaxy of Bismuth Telluride Topological Insulators(J. Phys. Chem. C 2019, 123, 24818-24825, doi…

physics.app-ph2018

X-ray tools for van der Waals epitaxy of bismuth telluride topological insulator films

Stefan Kycia, Sergio L. Morelhao, Samuel Netzke +3

Potential applications in spintronics and quantum computing have motivated much recent research in epitaxial films of bismuth telluride. This system is also an example of van der W…