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arXiv · 1606.02764

Can we prevent the "dead layer" formation at manganite interfaces?

Ayşegül Begüm Koçak·Julien Varignon·Sébastien Lemal·Philippe Ghosez·Marie-Bernadette Lepetit
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Abstract

The present work theoretically studies the possibility to hinder the formation of a "dead" layer at the interfaces in manganite superlattices. We showed that this goal can be reached by using alkaline-earth simple oxides as alternating layers in very thin superlattices. Indeed, such alternating layer promotes the contraction of manganite layers at the interfaces and $d_{x^2-y^2}$ preferred $e_g$ orbital occupancy, while Boltzman's transport calculations show an increase in conductivity. This result hold for different manganites, different alkaline-earth simple oxides as well as different thicknesses of the two layers.

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Ayşegül Begüm Koçak, Julien Varignon, Sébastien Lemal, Philippe Ghosez, Marie-Bernadette Lepetit. 2016-06-08. Can we prevent the "dead layer" formation at manganite interfaces?. https://arxiv.org/abs/1606.02764

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