High-frequency measurements of thermophysical properties of thin films using a modified broad-band frequency domain thermoreflectance approach

2018 ◽  
Vol 89 (8) ◽  
pp. 084905 ◽  
Author(s):  
Mohammadreza Shahzadeh ◽  
Mizanur Rahman ◽  
Olav Hellwig ◽  
Simone Pisana
Keyword(s):  
Thin Films ◽  
Frequency Domain ◽  
Thermophysical Properties ◽  
High Frequency ◽  
Broad Band ◽  
Band Frequency ◽  
Frequency Measurements

scholarly journals High frequency measurements of CoFeHfO thin films

2001 ◽  
Vol 37 (4) ◽  
pp. 2248-2250 ◽  
Author(s):  
S.E. Russek ◽  
P. Kabos ◽  
T. Silva ◽  
F.B. Mancoff ◽  
Dexin Wang ◽  
...  
Keyword(s):  
Thin Films ◽  
High Frequency ◽  
Frequency Measurements

High frequency measurements of P-E hysteresis curves of PZT thin films

2001 ◽  
Vol 259 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Takaakitsurumi ◽  
Song-Min Num ◽  
Young-Bae Kil ◽  
Satoshi Wada
Keyword(s):  
Thin Films ◽  
High Frequency ◽  
Pzt Thin Films ◽  
Hysteresis Curves ◽  
Frequency Measurements

scholarly journals High Permeability Photosintered Strontium Ferrite Flexible Thin Films

Micromachines ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 42
Author(s):  
Abid Ahmad ◽  
Bhagyashree Mishra ◽  
Andrew Foley ◽  
Leslie Wood ◽  
Maggie Yihong Chen
Keyword(s):  
Thin Films ◽  
Direct Current ◽  
Complex Permittivity ◽  
High Frequency ◽  
Magnetic Thin Films ◽  
Strontium Ferrite ◽  
Complex Permeability ◽  
High Permeability ◽  
Frequency Measurements

The paper is focused on the development and optimization of strontium ferrite nanomaterial and photosintered flexible thin films. These magnetic thin films are characterized with direct current (DC) and high frequency measurements. For photosintered strontium ferrite samples, we achieved relative complex permeability of about 29.5-j1.8 and relative complex permittivity of about 12.9-j0.3 at a frequency of 5.9 GHz.

Vibration suppression of a piezo-equipped cylindrical shell in a broad-band frequency domain

2017 ◽  
Vol 411 ◽  
pp. 260-277 ◽  
Author(s):  
Ali Loghmani ◽  
Mohammad Danesh ◽  
Moon K. Kwak ◽  
Mehdi Keshmiri
Keyword(s):  
Cylindrical Shell ◽  
Frequency Domain ◽  
Vibration Suppression ◽  
Broad Band ◽  
Band Frequency

High-frequency measurements of the magnetoresistance effect of thin films

2000 ◽  
Vol 132 (2) ◽  
pp. 1-5 ◽  
Author(s):  
Nobuyuki Yoshizawa ◽  
Hiroshi Nakane ◽  
Teruo Negishi ◽  
Yutaka Shimada
Keyword(s):  
Thin Films ◽  
High Frequency ◽  
Magnetoresistance Effect ◽  
Frequency Measurements

Magnetic properties of FeXNi100-X (X=20, 17, 15 %) thin films: focus on high-frequency sensory applications

2019 ◽  
pp. 20-25
Author(s):  
Anna Chlenova ◽  
◽  
Elizaveta Golubeva ◽  
Iuliia Novoselova ◽  
Ruslan Salikhov ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
High Frequency

scholarly journals Measurement of Electrical Properties of Superconducting YBCO Thin Films in the VHF Range

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3360
Author(s):  
Yakir Dahan ◽  
Eldad Holdengreber ◽  
Elichai Glassner ◽  
Oz Sorkin ◽  
Shmuel E. Schacham ◽  
...  
Keyword(s):  
Thin Films ◽  
Theoretical Model ◽  
Quality Factor ◽  
High Frequency ◽  
Unit Length ◽  
Superconducting Thin Films ◽  
Electrical Parameters ◽  
Very High Frequency ◽  
Production Constraints ◽  
Very High

A new measurement technique of electrical parameters of superconducting thin films at the Very High Frequency (VHF) range is described, based on resonators with microstrip (MS) structures. The design of an optimal resonator was achieved, based on a thorough theoretical analysis, which is required for derivation of the exact configuration of the MS. A theoretical model is presented, from which an expression for the attenuation of a MS line can be derived. Accordingly, simulations were performed, and an optimal resonator for the VHF range was designed and implemented. Production constraints of YBa2Cu3O7 (YBCO) limited the diameter of the sapphire substrate to 3″. Therefore, a meander configuration was formed to fit the long λ/4 MS line on the wafer. By measuring the complex input reflection coefficients of a λ/4 resonator, we extracted the quality factor, which is mainly affected by the dielectric and conductor attenuations. The experimental results are well fitted by the theoretical model. The dielectric attenuation was calculated using the quasi-static analysis of the MS line. An identical copper resonator was produced and measured to compare the properties of the YBCO resonator in reference to the copper one. A quality factor of ~6·105 was calculated for the YBCO resonator, three orders of magnitude larger than that of the copper resonator. The attenuation per unit length of the YBCO layer was smaller by more than five orders of magnitude than that of the copper.

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