# NMR studies of the topological insulator Bi2Te3

## TL;DR

This study uses NMR spectroscopy to investigate the electronic and structural properties of the topological insulator Bi2Te3 across a broad temperature range, revealing temperature-dependent spectral behaviors.

## Contribution

It provides detailed NMR analysis of Bi2Te3, including temperature effects and orientation-dependent spectral features, advancing understanding of its topological insulator properties.

## Key findings

- Spectral behavior changes below 91 K for c parallel orientation
- Activation energy related to thermal activation observed
- Differences between powder and single crystal samples identified

## Abstract

Te NMR studies were carried out for the bismuth telluride topological insulator in a wide range from room temperature down to 12.5 K. The measurements were made on a Bruker Avance 400 pulse spectrometer. The NMR spectra were collected for the mortar and pestle powder sample and for single crystalline stacks with orientations c parallel and perpendicular to field. The activation energy responsible for thermal activation. The spectra for the stack with c parallel to field showed some particular behavior below 91 K.

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Source: https://tomesphere.com/paper/1701.05140