Personne

Kyle Brinkman

Publications associées (8)

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Temperature dependences of the optic phonons in PbSc1/2Ta1/2O3 (PST) sol-gel films deposited on sapphire substrates were studied by means of Fourier transform far-infrared transmission spectroscopy in the temperature range of 20-900 K. Four films displayin ...

2005

The paper brings results of far infrared transmission studies of relaxor ferroelectric PbMg1/3Nb2/3O3 and PbSc1/2Ta1/2O3 thin films performed at temperatures between 10K and 900K. The spectra clearly show that the lowest-frequency polar optic phonon soften ...

2005

Soft and central mode behaviour in PbMg1/3Nb2/3O3 relaxor ferroelectric

Nava Setter, Kyle Brinkman

The relaxor ferroelectric PbMg1/3Nb2/3O3 (PMN) is investigated by means of dielectric and Fourier transform far infrared transmission spectroscopy in ,the frequency range from 10 kHz to 15 THz at temperatures between 20 and 900 K using mostly thin films on ...

2005

Positional order in lead scandium tantalate (PST) as a "tool" for the investigation of relaxor ferroelectric behavior in thin films

Kyle Brinkman

Relaxor ferroelectric thin films exhibit a drastic reduction in the dielectric constant and associated properties in the thin film form, even for thicknesses in the micron range, which are essentially infinity for the size effects typically investigated in ...

EPFL2004

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Relaxor Pb(Sc-12/Ta-1/2)O-3 (PST) thin films have been prepared using mixed alkoxide and acetate precursors on TiO2/Pt/TiO2/SiO2/Si substrates. Relaxor behavior as evidenced by frequency dispersion of the permittivity as a function of temperature was obser ...

2004

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Pure perovskite Pb(Sc1/2Nb1/2)O-3 thin films without pyrochlore phase were prepared by the sol-gel method on TiO2/Pt/TiO2/SiO2/Si substrates. Films exhibited (111) preferred orientation and columnar microstructure. Diffuse phase transitions with permittivi ...

2003

Sol-gel derived Pb(Sc0.5Nb0.5)O-3 thin films: Processing and dielctric properties

Nava Setter, Dragan Damjanovic, Ji Hyun Kim, Kyle Brinkman

Relaxor Pb(Sc1/2Nb1/2)O-3 (PSN) thin films without pyrochlore phase were processed from the modified alkoxide solution precursors. The preparation of single phase PSN thin films has a narrow processing window due to the appearance of an undesirable pyrochl ...

2002

Preparation and dielectric properties of Pb(Sc1/2Nb1/2)O-3-PbTiO3 thin films near MPB compositions

Nava Setter, Dragan Damjanovic, Kyle Brinkman

The (1-x)Pb(Sc1/2Nb1/2)O-3-xPbTiO(3)(x=0.4, PSNT(60/40)) thin films near the morphotropic phase boundary(MPB) composition were successfully deposited via sol-gel method. Taking the strict controls of processing factors such as the stable and homogeneous pr ...

2002