@article{12816ca3c5d34c4fa2eb251b81620c92,
title = "Ionic transport and dielectric properties in NaNbO3 under high pressure",
abstract = "The ionic transport and dielectric behaviors in NaNbO3 were studied under pressures up to 29.1 GPa by in situ impedance spectroscopy measurements. The transport process consists of the ionic transfer and the Warburg diffusion process between sample/electrode diffusion layers. A dielectric relaxation with a giant dielectric constant at low frequencies is observed, which is attributed to the {"}Maxwell-Wagner{"} interfacial polarization. In the Pbcm phase, the increase in the interaction between the Na+ ions and the NbO6 octahedra results in the enhancement of vibration resonance damping. In the high-pressure phases, the decrease in the relative permittivity with pressure indicates the existence of space charge polarization of the interface layer besides the ionic polarization.",
author = "Qinglin Wang and Dandan Sang and Hui Jiao and Cailong Liu and Wenjun Wang and Yonghao Han and Yanzhang Ma and Chunxiao Gao",
note = "Funding Information: We thank two anonymous reviewers for their careful reading and valuable comments, which helped to improve the manuscript. This work was supported by the National Natural Science Foundation of China (Grant Nos. 11604133, 11374121, 61775089, 61275147, and 11404133), the Shandong Provincial Natural Science Foundation (Grant Nos. ZR2017QA013, ZR2012AL11, and ZR2013EML006), the Industrial Alliance Fund of Shandong Provincial Key Laboratory (Grant No. SDKL2016038), the Open Project of State Key Laboratory of Superhard Materials (Jilin University, Grant No. 201612), the Initial Foundation for Doctor Program of Liaocheng University (Grant Nos. Funding Information: 318051610 and 318051612), and the Special Construction Project Fund for Shandong Province Taishan Scholars. Publisher Copyright: {\textcopyright} 2017 Author(s).",
year = "2017",
month = oct,
day = "9",
doi = "10.1063/1.4999206",
language = "English",
volume = "111",
journal = "Applied Physics Letters",
issn = "0003-6951",
number = "15",
}