Structure and dielectric characteristics of continuous composition spread Ba1−Sr TiO3 thin films by combinatorial pulsed laser deposition
Source abstract
Abstract
Abstract Ba 1− x Sr x TiO 3 (0≤ x ≤1, BST- x ) continuous composition spread thin films were grown on SrTiO 3 substrates buffered by La 0.9 Sr 1.1 NiO 4 (LSNO) electrodes using combinatorial pulsed laser deposition. The effects of Sr concentration on the structure and dielectric properties of the Au/BST- x /LSNO capacitors were investigated. X-ray diffraction patterns and reciprocal space maps revealed that both the in-plane and out-of-plane BST- x lattice parameters decreased with the increment of Sr content. Impedance measurements showed that the dielectric constant and tunability simultaneously changed with Sr concentration and reached the maximum at about x =0.5, which is comparable to that of BST- x individual thin films or bulks. Our results showed the large potential of combinatorial method in optimizing materials properties and even finding new materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Electronic and Structural Properties of Oxides · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
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