scholarly journals Lattice contributions to the anisotropic dielectric response of rare-earth langasites

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
L. Bergen ◽  
L. Weymann ◽  
J. Wettstein ◽  
A. M. Kuzmenko ◽  
A. A. Mukhin ◽  
...  
Keyword(s):  
Rare Earth ◽  
Dielectric Response ◽  
Anisotropic Dielectric

Anisotropic dielectric response of lead zirconate crystals in the terahertz and infrared range at low temperature

2014 ◽  
Vol 87 (10-11) ◽  
pp. 1129-1137 ◽  
Author(s):  
Tetyana Ostapchuk ◽  
Christelle Kadlec ◽  
Petr Kuzel ◽  
Jan Kroupa ◽  
Vladimir Zelezny ◽  
...  
Keyword(s):  
Low Temperature ◽  
Dielectric Response ◽  
Lead Zirconate ◽  
Infrared Range ◽  
Anisotropic Dielectric

scholarly journals Real-space anisotropic dielectric response in a multiferroic skyrmion lattice

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
P. Chu ◽  
Y. L. Xie ◽  
Y. Zhang ◽  
J. P. Chen ◽  
D. P. Chen ◽  
...  
Keyword(s):  
Dielectric Response ◽  
Real Space ◽  
Anisotropic Dielectric

Ellipsometric, Magneto-Optic, and Magnetic Properties of Sputtered Rare Earth-Transition Metal Multilayers

1987 ◽  
Vol 103 ◽  
Author(s):  
Thomas E. Tiwald ◽  
John A. Woollam ◽  
Z. S. Shan ◽  
D. J. Sellmyer
Keyword(s):  
Magnetic Properties ◽  
Optical Properties ◽  
Rare Earth ◽  
Transition Metal ◽  
Magnetic Anisotropy ◽  
Layer Thickness ◽  
Spectral Range ◽  
Dielectric Response ◽  
Dielectric Response Function ◽  
Optical Dielectric

ABSTRACTEllipsometric and magneto-optical properties of amorphous Dy (3.5 Å) and amorphous Fe (25 Å to 12.5 Å) multilayers were investigated over the spectral range from 3000 Å to 8000 Å in magnetic fields to 0.21 Tesla. In this range of layer thickness the magnetic anisotropy is vertical. Kerr rotations, θk, were weakly spectrally dependent, and as large as 0.1 degrees. The diagonal and off-diagonal elements of the optical dielectric response function were determined over the full spectral range, and were found to be dependent on iron layer thickness.

Anisotropic dielectric response of ferromagnetic cobalt

1995 ◽  
Vol 140-144 ◽  
pp. 89-90 ◽  
Author(s):  
R. Ahuja ◽  
S. Auluck ◽  
B. Johansson ◽  
M.A. Khan
Keyword(s):  
Dielectric Response ◽  
Anisotropic Dielectric ◽  
Ferromagnetic Cobalt

Infrared reflectivity and intrinsic dielectric behavior of RETiTaO6 (RE = Y, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Yb) microwave ceramics

2005 ◽  
Vol 20 (5) ◽  
pp. 1164-1171 ◽  
Author(s):  
C.W.A. Paschoal ◽  
R.L. Moreira ◽  
K.P. Surendran ◽  
M.T. Sebastian
Keyword(s):  
Rare Earth ◽  
Dielectric Response ◽  
Dielectric Behavior ◽  
Quantum Model ◽  
Quality Factors ◽  
Microwave Ceramics ◽  
Phonon Modes ◽  
Infrared Reflectivity ◽  
Ion Substitution ◽  
Dielectric Ceramics

In this work, we performed infrared reflectivity measurements of RETiTaO6 dielectric ceramics for rare-earth (RE) = Y, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Yb. The infrared spectra were analyzed through the four-parameter semi-quantum model based on two orthorhombic (aeschynite and euxenite) structures presented by the ceramics. We discerned the strongest phonon modes that contribute to the intrinsic dielectric behavior of the two families. Then the unloaded quality factors and the dielectric permittivities were estimated at the microwave region. The variations of the intrinsic dielectric response of both systems with RE ion substitution are discussed in terms of changes in their dielectric polarizabilities. It is proposed that the covalency of the RE–O bonds play an important role in the evolution of dielectric permittivity as well as in the sign of the temperature coefficient of the resonant frequency.

scholarly journals Engineering anisotropic dielectric response through amorphous laminate structures

2012 ◽  
Vol 209 (4) ◽  
pp. 777-784 ◽  
Author(s):  
E. William Cowell ◽  
Christopher C. Knutson ◽  
Nicholas A. Kuhta ◽  
William Stickle ◽  
Douglas A. Keszler ◽  
...  
Keyword(s):  
Dielectric Response ◽  
Anisotropic Dielectric

First-principles prediction of infrared phonon and dielectric function of biaxial hyperbolic van der Waals crystal α-MoO3

2021 ◽  
Author(s):  
Zhen Tong ◽  
Traian Dumitrica ◽  
Thomas Frauenheim
Keyword(s):  
Dielectric Function ◽  
First Principles ◽  
Dielectric Response ◽  
Molybdenum Trioxide ◽  
Van Der Waals ◽  
Anisotropic Dielectric ◽  
Interlayer Bonding

The layered biaxial hyperbolic molybdenum trioxide (α-MoO3) with weak van der Waals (vdW) interlayer bonding has recently received extensive attention in photonics community due to its anisotropic dielectric response to...

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