DataVXECS Journal of Solid State Science and TechnologyPaper
journal article·2018Open access

Atomic Layer Deposition and Performance of ZrO2-Al2O3Thin Films

Kaupo Kukli, Marianna Kemell, Helena Castán, Salvador Dueñas, Helina Seemen, Mihkel Rähn, Joosep Link, Raivo Stern, Mikko J. Heikkilä, Mikko Ritala, Markku Leskelä

ECS Journal of Solid State Science and Technology· Volume 7· Issue 5
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Source abstract

Abstract

Thin mixed and nanolaminate films of ZrO2 and Al2O3 were grown by atomic layer deposition from the corresponding metal chlorides and water. The films were grown at 350 degrees C in order to ensure ZrO2 crystallization in the as-deposited state. The relative thicknesses of layers in the structure of the nanolaminates were controlled in order to maximize the content of metastable polymorphs of ZrO2 that have higher permittivity than that of the stable monoclinic ZrO2 . The multilayer films demonstrated interfacial charge polarization and saturative magnetization in external fields. The conductivity of the films could be switched between high and low resistance states by applying voltages of alternating polarity. (C) 2018 The Electrochemical Society.
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NanomaterialsMaterials processing

OpenAlex topics: Ferroelectric and Negative Capacitance Devices · Semiconductor materials and devices · Electronic and Structural Properties of Oxides

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