# Lighting up topological insulators: large surface photocurrents from magnetic superlattices

@article{Lindner2014LightingUT, title={Lighting up topological insulators: large surface photocurrents from magnetic superlattices}, author={N. Lindner and A. Farrell and Eran Lustig and G. Refael and F. Oppen}, journal={arXiv: Mesoscale and Nanoscale Physics}, year={2014} }

The gapless surface states of topological insulators (TI) can potentially be used to detect and harvest low-frequency infrared light. Nonetheless, it was shown that significant surface photocurrents due to light with frequency below the bulk gap are rather hard to produce. Here we demonstrate that a periodic magnetic pattern added to the surface dramatically enhances surface photocurrents in TI's. Moreover, the sensitivity of this set-up to the wavelength of the incident light can be optimized… Expand

#### 5 Citations

Gate-Variable Mid-Infrared Optical Transitions in an Electronic Topological Insulator

- Physics
- 2016

We report the first mid-infrared spectroscopy measurement of an electrostatically gated topological insulator, in which we observe several percent modulation of transmittance and reflectance of… Expand

Gate-Variable Mid-Infrared Optical Transitions in a (Bi1-xSbx)2Te3 Topological Insulator.

- Materials Science, Physics
- Nano letters
- 2017

Mid-infrared spectroscopy measurements of ultrathin, electrostatically gated (Bi1-xSbx)2Te3 topological insulator films are reported in which several percent modulation of transmittance and reflectance as gating shifts the Fermi level are observed. Expand

Topological Insulators as Ultrafast Auston Switches in On-Chip THz-Circuits

- Physics
- IEEE Journal of Selected Topics in Quantum Electronics
- 2017

We demonstrate that the three-dimensional topological insulator Bi2Se3 can be exploited as an ultrafast photoswitch in high-frequency optoelectronic circuits without the need to apply a voltage bias… Expand

Taking topological insulators for a spin: Towards understanding of spin and charge transport in Bi2Se3

- Art
- 2017

Topologische isolatoren zijn materialen waarbij de elektrische geleiding alleen plaatsvindt aan het oppervlak, de rest van het materiaal is idealiter een isolator. Deze oppervlaktetoestanden zijn… Expand

Carrier density and thickness-dependent proximity effect in doped-topological-insulator–metallic-ferromagnet bilayers

- Physics
- 2021

We use magneto-conductivity to study magnetic proximity effect on surface states of doped topological insulators. Our bilayers consist of a layer of Fe7Se8, which is a metallic ferrimagnet and a… Expand

#### References

SHOWING 1-10 OF 48 REFERENCES

Reports on Progress in Physics

- Physics
- Nature
- 1936

AbstractTHE second volume of the Progress Reports issued by the Physical Society does not belie the promise of the first. It continues the method, initiated in the earlier volume, of a series of… Expand

Nanotechnology

- 2001

Nanotechnology is the set of technologies that enables the manipulation, study or exploitation of very small (typically less than 100 nanometres) structures and systems. To put this into perspective,… Expand

Proceedings of the National Academy of Sciences, USA

- Medicine
- Current Biology
- 1996

The song below is a talking blues in the style of Woody Guthrie, written by Joel Herskowitz, a pediatric neurologist working in Boston, and sung by Joel and his brother Ira. Expand

Selected Topics in Quantum Electronics

- IEEE Journal of 20, 70
- 2014

and W

- Gawron, in International Symposium on Optical Science and Technology
- 2000

W

- J. Choi, J.-w. Choe, and J. C. Shin, Scientific reports 5
- 2015

A

- del Prado, I. Mártil, and G. González- Díaz, Applied Physics Letters 104, 211105
- 2014

Journal of Physics D: Applied Physics 47

- 085107
- 2014

Phys

- Rev. Lett. 110, 186807
- 2013