Sofie Kolling

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cond-mat.mes-hall2025

Observation of the surface hybridization gap in the electrical transport properties of the ultrathin topological insulator (Bi $_{1 - x}$ Sb $_{x}$ ) $_{2}$ Te $_{3}$

Feike van Veen, Sofie KÃ¶lling, Stijn R. de Wit +4

We study the three-dimensional topological insulator (Bi $_{1 - x}$ Sb $_{x}$ ) $_{2}$ Te $_{3}$ in its ultrathin limit i.e. when the thickness is of the same order as the surface state pen…

cond-mat.mes-hall2025

Signature of current-induced nuclear spin polarization in (Bi $_{1 - x}$ Sb $_{x}$ ) $_{2}$ Te $_{3}$

Sofie KÃ¶lling, Ä°nanÃ§ Adagideli, Alexander Brinkman

In systems with spin-momentum locking, such as the surface states of three-dimensional topological insulators, a charge current is spin-polarized and spin-flip interactions between…

cond-mat.mes-hall2025

Non-Ohmic behavior in (Bi $_{1 - x}$ Sb $_{x}$ ) $_{2}$ Te $_{3}$ by Joule heating

Sofie KÃ¶lling, Daan H. Wielens, Ä°nanÃ§ Adagideli +1

A prerequisite to using the net spin polarization generated by a source-drain bias in three-dimensional topological insulators for spintronic applications, is understanding how suc…

cond-mat.mes-hall2025

Gate electrode-induced nonreciprocal resistance in topological insulators

Sofie KÃ¶lling, Florian R. Westerhof, Alexander Brinkman

A common method of controlling the chemical potential in topological insulators is applying a gate electrode. Simultaneously applying high source-drain bias currents can lead to pa…

Observation of the surface hybridization gap in the electrical transport properties of the ultrathin topological insulator (Bi1−x​Sbx​)2​Te3​

Signature of current-induced nuclear spin polarization in (Bi1−x​Sbx​)2​Te3​

Non-Ohmic behavior in (Bi1−x​Sbx​)2​Te3​ by Joule heating

Gate electrode-induced nonreciprocal resistance in topological insulators

Observation of the surface hybridization gap in the electrical transport properties of the ultrathin topological insulator (Bi $_{1 - x}$ Sb $_{x}$ ) $_{2}$ Te $_{3}$

Signature of current-induced nuclear spin polarization in (Bi $_{1 - x}$ Sb $_{x}$ ) $_{2}$ Te $_{3}$

Non-Ohmic behavior in (Bi $_{1 - x}$ Sb $_{x}$ ) $_{2}$ Te $_{3}$ by Joule heating