Akin A. Ünal
Helmholtz-Zentrum Berlin
4 Papers
44 Citations
Akin A. Ünal is an academic researcher from Helmholtz-Zentrum Berlin. The author has contributed to research in topics: Topological insulator & High-resolution transmission electron microscopy. The author has an hindex of 2, co-authored 4 publications.
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Papers
2D layered transport properties from topological insulator Bi$_2$Se$_3$ single crystals and micro flakes
Olivio Chiatti,Christian Riha,Dominic Lawrenz,Marco Busch,S. Dusari,Jaime Sánchez-Barriga,Anna Mogilatenko,Lada V. Yashina,Sergio Valencia,Akin A. Ünal,Oliver Rader,Saskia F. Fischer +11 more
TL;DR: It is reported that quantum corrections to the electronic conduction are dominated by the surface states for a semiconducting case, which can be analyzed by the Hikami-Larkin-Nagaoka model for two coupled surfaces in the case of strong spin-orbit interaction.
Switching on superferromagnetism
Ashima Arora,L. C. Phillips,Pavan Nukala,M. Ben Hassine,Akin A. Ünal,Brahim Dkhil,Ll. Balcells,Òscar Iglesias,Alain Barthélémy,Florian Kronast,Manuel Bibes,Sergio Valencia +11 more
TL;DR: In this paper, the authors show that an electric field-induced strain is capable of switching on a collective long-range ferromagnetic order (superferromagnetism) on an otherwise zero-dimensional superparamagnetic nanoparticle system.
Switching on superferromagnetism
Ashima Arora,L. C. Phillips,Pavan Nukala,M. Ben Hassine,Akin A. Ünal,Brahim Dkhil,Ll. Balcells,Òscar Iglesias,Alain Barthélémy,Florian Kronast,Manuel Bibes,Sergio Valencia +11 more
TL;DR: In this article, a superparamagnetic to superferromagnetic transition is observed for confined regions for which a voltage applied to the ferroelectric substrate induces a sizable strain, leading to an increase of the critical temperature separating the two regimes.
2D layered transport properties from topological insulator Bi2Se3 single crystals and micro flakes.
Olivio Chiatti,Christian Riha,Dominic Lawrenz,Marco Busch,S. Dusari,Jaime Sánchez-Barriga,Anna Mogilatenko,Lada V. Yashina,Sergio Valencia,Akin A. Ünal,Oliver Rader,Saskia F. Fischer +11 more
TL;DR: In this article, it was shown that quantum corrections to the electronic conduction are dominated by the surface states for a semiconducting case, which can be analyzed by the Hikami-Larkin-Nagaoka model for two coupled surfaces in the case of strong spin-orbit interaction.