Microwave properties of compositionally graded (Ba, Sr)TiO3 thin films according to the direction of the composition gradient for tunable microwave applications
作者： Su-Jae Lee , Seung Eon Moon , Han-Cheol Ryu , Min-Hwan Kwak , Young-Tae Kim
DOI: 10.1063/1.1565705
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摘要: Compositionally graded (Bax, Sr1−x)TiO3 (BST) thin films were deposited on MgO substrates by pulsed laser ablation. The microwave properties of the BST investigated at frequencies with coplanar waveguide (CPW) meander-line phase shifters as a function direction composition gradient respect to substrate room temperature. CPW using BaTiO3(BT)→SrTiO3(ST) and ST→BT exhibited differential shift 73° 22° 10 GHz dc bias voltage 150 V, respectively. figure merit was 14.6 deg/dB for BT→ST film, film. showed larger tuning than films. depended strongly crystalline structure substrate.
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G. A. Smolenskiĭ, Ferroelectrics and related materials Gordon and Breach Science Publishers. ,(1984)
O. G. Vendik, S. P. Zubko, S. F. Karmanenko, M. A. Nikol’ski, N. N. Isakov, I. T. Serenkov, V. I. Sakharov, Layered planar capacitor based on Ba[sub x]Sr[sub 1−x]TiO[sub 3] with variable parameter x Journal of Applied Physics. ,vol. 91, pp. 331- 335 ,(2002) , 10.1063/1.1421035
W. J. Kim, W. Chang, S. B. Qadri, J. M. Pond, S. W. Kirchoefer, D. B. Chrisey, J. S. Horwitz, Microwave properties of tetragonally distorted (Ba0.5Sr0.5)TiO3 thin films Applied Physics Letters. ,vol. 76, pp. 1185- 1187 ,(2000) , 10.1063/1.125977
Eun-Kyoung Kim, Seung Eon Moon, Su Jae Lee, Seok Kil Han, Kwang Yong Kang, Won-Jeong Kim, Microwave Properties of Tunable Interdigitated Capacitor Fabricated on Ba 0.6 Sr 0.4 TiO 3 Thin Film Ferroelectrics. ,vol. 272, pp. 237- 242 ,(2002) , 10.1080/713716264
Su-Jae Lee, Seung-Eon Moon, Min-Hwan Kwak, Han-Cheol Ryu, Young-Tae Kim, Seok-Kil Han, Microwave Properties of Compositionally Graded (Ba, Sr)TiO 3 Thin Films for Electrically Tunabel Microwave Devices Integrated Ferroelectrics. ,vol. 49, pp. 151- 158 ,(2002) , 10.1080/713718357
Y. Gao, M. D. Craven, J. S. Speck, S. P. Den Baars, E. L. Hu, Dislocation- and crystallographic-dependent photoelectrochemical wet etching of gallium nitride Applied Physics Letters. ,vol. 84, pp. 3322- 3324 ,(2004) , 10.1063/1.1719281
F. W. Van Keuls, R. R. Romanofsky, C. H. Mueller, J. D. Warner, C. L. Canedy, R. Ramesh, F. A. Miranda, Current Status of Thin Film (Ba,Sr) TiO3 Tunable Microwave Components for RF Communications Integrated Ferroelectrics. ,vol. 34, pp. 165- 176 ,(2001) , 10.1080/10584580108012886
R. Romanofsky, F. Van Keuls, C. Mueller, F. Miranda, G. Fox, F. Chu, F. Gladden, A. Hunt, Progress in economically viable phase shifters based on thin ferroelectric films Integrated Ferroelectrics. ,vol. 39, pp. 299- 311 ,(2001) , 10.1080/10584580108011953
N. W. Schubring, J. V. Mantese, A. L. Micheli, A. B. Catalan, M. S. Mohammed, R. Naik, G. Auner, Graded ferroelectrics: A new class of steady-state thermal/electrical/mechanical energy interchange devices Integrated Ferroelectrics. ,vol. 24, pp. 155- 168 ,(1999) , 10.1080/10584589908215588
Seung Eon Moon, Eun-Kyoung Kim, Su-Jae Lee, Seok-Kil Han, Kwang Yong Kang, Won-Jeong Kim, Ferroelectric Ba 0.6 Sr 0.4 TiO 3 Phase Shifters Under High Power Microwave Ferroelectrics. ,vol. 272, pp. 333- 338 ,(2002) , 10.1080/713716279