Measurement of the dielectric constant and loss tangent of high dielectric-constant materials at terahertz frequencies

2003 ◽  
Vol 51 (4) ◽  
pp. 1062-1066 ◽  
Author(s):  
P.H. Bolivar ◽  
M. Brucherseifer ◽  
J.G. Rivas ◽  
R. Gonzalo ◽  
I. Ederra ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Loss Tangent ◽  
High Dielectric Constant ◽  
Dielectric Constant And Loss ◽  
Terahertz Frequencies ◽  
High Dielectric Constant Materials ◽  
High Dielectric

Off Axis Growth of Strontium Titanate Films with High Dielectric Constant Tuning and Low Loss

2002 ◽  
Vol 720 ◽  
Author(s):  
Satreerat Kampangkeaw ◽  
Charles T. Rogers
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Strontium Titanate ◽  
Loss Tangent ◽  
Figure Of Merit ◽  
High Dielectric Constant ◽  
Dielectric Films ◽  
Low Loss ◽  
Dielectric Constant And Loss ◽  
High Dielectric

AbstractWe have measured the nonlinear dielectric properties of strontium titanate (STO) thin films grown on neodymium gallate (NGO) and lanthanum aluminate (LAO) substrates. The films prepared by off-axis pulsed laser deposition were characterized by their dielectric constant and loss tangent at 1 MHz and 2 GHz, and from room temperature down to 4 K. The resulting films show significant variations of dielectric properties with position of the substrates with respect to the plume axis. STO films on LAO substrates show low loss and high dielectric constant in regions near the plume axis. On the other hand, STO on NGO shows this effect only on the films grown far from the plume axis. We also obtained a figure of merit from the relative variation of the dielectric constant divided by the loss tangent in the presence of a DC electric field up to +/- 4 V/μm. Careful mapping of the plume crossection allowed us to improve the quality and reproducibility of the dielectric films, obtaining a best figure of merit at 2 GHz and 4 K close to 100 for NGO substrate but only well off axis.

Engineering High Dielectric Constant Materials for Band-Edge CMOS Applications

2019 ◽  
Vol 16 (5) ◽  
pp. 19-26 ◽  
Author(s):  
Hemanth Jagannathan ◽  
Vijay Narayanan ◽  
Stephen Brown
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Band Edge ◽  
High Dielectric Constant Materials ◽  
High Dielectric

ABSORPTION IN A DIELECTRIC SLAB

1958 ◽  
Vol 36 (4) ◽  
pp. 456-461 ◽  
Author(s):  
M. P. Bachynski
Keyword(s):  
Dielectric Constant ◽  
Incident Energy ◽  
High Dielectric Constant ◽  
Angle Of Incidence ◽  
Dielectric Slab ◽  
Absorbed Energy ◽  
Half Wavelength ◽  
High Dielectric Constant Materials ◽  
High Dielectric ◽  
Electrical Thickness

The amount of incident energy transmitted, reflected, and absorbed by a parallel slab of lossy, high-dielectric-constant material is derived. The results are general for any angle of incidence, and calculations are presented for some lossy, high-dielectric-constant materials of one-half wavelength electrical thickness. At angles of incidence greater than 60°, the reflected energy is found to be the smaller the lossier the material. The absorbed energy is a maximum at certain angles of incidence which depend upon the polarization and dielectric constant.

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