Search Results - "Hankiewicz, E M"

Survival of the Quantum Anomalous Hall Effect in Orbital Magnetic Fields as a Consequence of the Parity Anomaly by Böttcher, Jan, Tutschku, Christian, Molenkamp, Laurens W, Hankiewicz, E M

“…Recent experimental progress in condensed matter physics enables the observation of signatures of the parity anomaly in two-dimensional Dirac-like materials…”
Get full text

Josephson Radiation from Gapless Andreev Bound States in HgTe-Based Topological Junctions by Deacon, R. S., Wiedenmann, J., Bocquillon, E., Domínguez, F., Klapwijk, T. M., Leubner, P., Brüne, C., Hankiewicz, E. M., Tarucha, S., Ishibashi, K., Buhmann, H., Molenkamp, L. W.

“…Frequency analysis of the rf emission of oscillating Josephson supercurrent is a powerful passive way of probing properties of topological Josephson junctions…”
Get full text

Effective lifting of the topological protection of quantum spin Hall edge states by edge coupling by Stühler, R., Kowalewski, A., Reis, F., Jungblut, D., Dominguez, F., Scharf, B., Li, G., Schäfer, J., Hankiewicz, E. M., Claessen, R.

“…The scientific interest in two-dimensional topological insulators (2D TIs) is currently shifting from a more fundamental perspective to the exploration and…”
Get full text

Observation of the universal magnetoelectric effect in a 3D topological insulator by Dziom, V., Shuvaev, A., Pimenov, A., Astakhov, G. V., Ames, C., Bendias, K., Böttcher, J., Tkachov, G., Hankiewicz, E. M., Brüne, C., Buhmann, H., Molenkamp, L. W.

“…The electrodynamics of topological insulators (TIs) is described by modified Maxwell’s equations, which contain additional terms that couple an electric field…”
Get full text

Ballistic quantum spin Hall state and enhanced edge backscattering in strong magnetic fields by Tkachov, G, Hankiewicz, E M

“…The quantum spin Hall (QSH) state, observed in a zero magnetic field in HgTe quantum wells, respects the time-reversal symmetry and is distinct from quantum…”
Get full text

Quantum Hall effect from the topological surface states of strained bulk HgTe by Brüne, C, Liu, C X, Novik, E G, Hankiewicz, E M, Buhmann, H, Chen, Y L, Qi, X L, Shen, Z X, Zhang, S C, Molenkamp, L W

“…We report transport studies on a three-dimensional, 70-nm-thick HgTe layer, which is strained by epitaxial growth on a CdTe substrate. The strain induces a…”
Get full text

Evidence for the ballistic intrinsic spin Hall effect in HgTe nanostructures by Buhmann, H, Hankiewicz, E. M, Molenkamp, L. W, Brüne, C, Sinova, J, König, M, Roth, A, Novik, E. G, Hanke, W

“…In the spin Hall effect, a current passed through a spin–orbit coupled electron gas induces a spin accumulation of inverse sign on either side of the sample. A…”
Get full text

Fingerprint of different spin–orbit terms for spin transport in HgTe quantum wells by Rothe, D G, Reinthaler, R W, Liu, C-X, Molenkamp, L W, Zhang, S-C, Hankiewicz, E M

Get full text

Direct observation of the Aharonov-Casher phase by König, M, Tschetschetkin, A, Hankiewicz, E M, Sinova, Jairo, Hock, V, Daumer, V, Schäfer, M, Becker, C R, Buhmann, H, Molenkamp, L W

“…Ring structures fabricated from HgTe/HgCdTe quantum wells have been used to study Aharonov-Bohm type conductance oscillations as a function of Rashba…”
Get full text

Manifestation of the spin Hall effect through charge-transport in the mesoscopic regime by HANKIEWICZ, E. M, MOLENKAMP, L. W, JUNGWIRTH, T, SINOVA, Jairo

Get full text

Anomalous Spin Response and Virtual-Carrier-Mediated Magnetism in a Topological Insulator by Kernreiter, T., Governale, M., Zülicke, U., Hankiewicz, E. M.

“…We present a comprehensive theoretical study of the static spin response in HgTe quantum wells, revealing distinctive behavior for the topologically nontrivial…”
Get full text

One-dimensional weak antilocalization due to the berry phase in HgTe wires by Mühlbauer, M, Budewitz, A, Büttner, B, Tkachov, G, Hankiewicz, E M, Brüne, C, Buhmann, H, Molenkamp, L W

“…We study the weak antilocalization (WAL) effect in the magnetoresistance of narrow HgTe wires fabricated in quantum wells with normal and inverted band…”
Get full text

Spin-helical transport in normal and superconducting topological insulators by Tkachov, G., Hankiewicz, E. M.

“…In a topological insulator (TI) the character of electron transport varies from insulating in the interior of the material to metallic near its surface…”
Get full text

Coulomb corrections to the extrinsic spin-Hall effect of a two-dimensional electron gas by Hankiewicz, E. M., Vignale, G.

Get full text

Conductivity corrections for topological insulators with spin-orbit impurities: Hikami-Larkin-Nagaoka formula revisited by Adroguer, P., Liu, Weizhe E., Culcer, D., Hankiewicz, E. M.

Get full text

Josephson junction dynamics in the presence of $2\pi$- and $4\pi$-periodic supercurrents by Domínguez, F., Kashuba, O., Bocquillon, E., Wiedenmann, J., Deacon, R. S., Klapwijk, T. M., Platero, G., Molenkamp, L. W., Trauzettel, B., Hankiewicz, E. M.

“…We investigate theoretically the dynamics of a Josephson junction in the framework of the RSJ model. We consider a junction that hosts two supercurrrent…”
Get full text

Single valley Dirac fermions in zero-gap HgTe quantum wells by Büttner, B., Liu, C. X., Tkachov, G., Novik, E. G., Brüne, C., Buhmann, H., Hankiewicz, E. M., Recher, P., Trauzettel, B., Zhang, S. C., Molenkamp, L. W.

“…Dirac fermions have been studied intensively in condensed matter physics in recent years. Many theoretical predictions critically depend on the number of…”
Get full text

Optical properties of metallic (III, Mn)V ferromagnetic semiconductors in the infrared to visible range by HANKIEWICZ, E. M, JUNGWIRTH, T, DIETL, T, TIMM, C, SINOVA, Jairo

Get full text

Magneto-optics of massive dirac fermions in bulk Bi2Se3 by Orlita, M, Piot, B A, Martinez, G, Kumar, N K Sampath, Faugeras, C, Potemski, M, Michel, C, Hankiewicz, E M, Brauner, T, Drašar, Č, Schreyeck, S, Grauer, S, Brunner, K, Gould, C, Brüne, C, Molenkamp, L W

“…We report on magneto-optical studies of Bi2Se3, a representative member of the 3D topological insulator family. Its electronic states in bulk are shown to be…”
Get full text

Anomalous spin precession and spin Hall effect in semiconductor quantum wells by Bi, Xintao, He, Peiru, Hankiewicz, E. M., Winkler, R., Vignale, Giovanni, Culcer, Dimitrie

“…Spin-orbit (SO) interactions give a spin-dependent correction r[subso] to the position operator, referred to as the anomalous position operator. We study the…”
Get full text