Broadband Dielectric Spectroscopy of Ruddlesden-Popper Sr$_{n+1}$Ti$_{n}$O$_{3n+1}$ ($n$ = 1, 2, 3) Thin Films
| Autor: | Xiaoxing Xi, Wei Tian, Ichiro Takeuchi, J. Mateu, Che-Hui Lee, J. C. Booth, Craig J. Fennie, Dazhen Gu, D. G. Schlom, Karin M. Rabe, N. D. Orloff |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Permittivity
Frequency response Condensed Matter - Materials Science Materials science Physics and Astronomy (miscellaneous) Analytical chemistry Relative permittivity Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention Capacitor law Electric field 0103 physical sciences Thin film 010306 general physics 0210 nano-technology Broadband dielectric spectroscopy |
| Popis: | We explore the frequency-dependent relative permittivity of Ruddlesden-Popper series Sr(n+1)Ti(n)O(3n+1) (n =1,2,3) thin films as a function of temperature and dc electric field. Interdigitated capacitors and coplanar waveguides were used to extract the frequency response from 500 Hz to 40 GHz. At room temperature, the in-plane relative permittivities obtained for Sr(n+1)Ti(n)O(3n+1) (n =1,2,3) were 42+/-3, 54+/-3, and 77+/-2, respectively, and were independent of frequency. At low temperatures, permittivity increases and electric field tunability develops in Sr(4)Ti(3)O(10). |
| Databáze: | OpenAIRE |
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