Hauptseite > Publikationsdatenbank > Field-induced soft mode hardening in SrTi03/DySc03 multilayers > print

001     62959
005     20200423204622.0
024 7 _ |a 10.1063/1.2967336
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041 _ _ |a eng
082 _ _ |a 530
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|a Physics, Applied
100 1 _ |a Kuzel, P.
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|0 P:(DE-HGF)0
245 _ _ |a Field-induced soft mode hardening in SrTi03/DySc03 multilayers
260 _ _ |a Melville, NY
|b American Institute of Physics
|c 2008
300 _ _ |a 052910-1 - 052910-3
336 7 _ |a Journal Article
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336 7 _ |a article
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440 _ 0 |a Applied Physics Letters
|x 0003-6951
|0 562
|v 93
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a We investigate a SrTiO3/DyScO3 epitaxial multilayer with four 50-nm-thick layers of each compound deposited on DyScO3 substrate by pulsed laser deposition. The spectra of SrTiO3 obtained using time-domain terahertz spectroscopy at room temperature with and without electrical bias are explained by the ferroelectric soft mode coupled to a silent central peak, where the bare soft mode frequency is the only field-dependent parameter. We show that terahertz and subterahertz properties of the layers are determined solely by a tremendous hardening of the soft mode with increasing field. We demonstrate that our structure induces more than 40% modulation of the transmitted terahertz power in a broad frequency range of 0.65-1.15 THz at 140 V (93 kV/cm) bias.
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700 1 _ |a Kadlec, C.
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700 1 _ |a Kadlec, F.
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700 1 _ |a Schubert, J.
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700 1 _ |a Panaitov, G.
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773 _ _ |a 10.1063/1.2967336
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856 7 _ |u http://dx.doi.org/10.1063/1.2967336
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