Large magnetic gap at the Dirac point in Bi2Te3/MnBi2Te4 heterostructures.

New possibilities for the lossless transmission of signals, which can be used, for example, in quantum computer processors, have been tested on new compounds by an international group of scientists including experts from Masaryk University and CEITEC Nano at Brno University of Technology. New experiments with magnetically doped topological insulators, i.e. materials that conduct an electric current only on the surface and otherwise behave as insulators, were published in the renowned journal Nature.

Rienks, E. D. L.; Wimmer, S.; Sánchez-Barriga, J.; Caha, O.; Mandal, P. S.; Růžička, J.; Ney, A.; Steiner, H.; Volobuev, V. V.; Groiss, H.; Albu, M.; Kothleitner, G.; Michalička, J.; Khan, S. A.; Minár, J.; Ebert, H.; Bauer, G.; Freyse, F.; Varykhalov, A.; Rader, O.; Springholz, G.: Large magnetic gap at the Dirac point in Bi2Te3/MnBi2Te4 heterostructures, NATURE 576 (7787), p. 423-428.

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