Journal of Pure and Applied Ultrasonics

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Effect of Electrical Resistivity on Ultrasonic Attenuation in FeSe Single Crystal at Low Temperature


Affiliations
1 Department of Physics, University of Allahabad, Allahabad-211002, India
2 Department of Physics, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study and Research, V.B.S. Purvanchal University, Jaunpur- 222003, India
 

The ultrasonic attenuation and velocities following electron viscosity mechanism has been computed in semi-metallic, superconducting single crystal Iron Selenide(FeSe) in low temperatures 10-70K. We have also calculated the electron-viscosity at different low temperature needed for the calculation of ultrasonic attenuation. The behaviour of ultrasonic attenuation is quite similar to its inverse electrical resistivity. The ultrasonic attenuation due to electron viscosity mechanism is most significant at 15 K. Computed results of ultrasonic parameters have been discussed.

Keywords

Elastic Constant, Electrical Resistivity, Superconductor, Ultrasonic Attenuation.
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  • Effect of Electrical Resistivity on Ultrasonic Attenuation in FeSe Single Crystal at Low Temperature

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Authors

Shakti Pratap Singh
Department of Physics, University of Allahabad, Allahabad-211002, India
P. K. Yadawa
Department of Physics, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study and Research, V.B.S. Purvanchal University, Jaunpur- 222003, India
P. K. Dhawan
Department of Physics, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study and Research, V.B.S. Purvanchal University, Jaunpur- 222003, India
A. K. Verma
Department of Physics, University of Allahabad, Allahabad-211002, India
R. R. Yadav
Department of Physics, University of Allahabad, Allahabad-211002, India

Abstract


The ultrasonic attenuation and velocities following electron viscosity mechanism has been computed in semi-metallic, superconducting single crystal Iron Selenide(FeSe) in low temperatures 10-70K. We have also calculated the electron-viscosity at different low temperature needed for the calculation of ultrasonic attenuation. The behaviour of ultrasonic attenuation is quite similar to its inverse electrical resistivity. The ultrasonic attenuation due to electron viscosity mechanism is most significant at 15 K. Computed results of ultrasonic parameters have been discussed.

Keywords


Elastic Constant, Electrical Resistivity, Superconductor, Ultrasonic Attenuation.

References