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Elastic Constants in C-plane of Single Crystal Bi 2Sr 2Ca Cu 208 between 80 K and 260 K

Published online by Cambridge University Press:  16 February 2011

Jin Wu ,
Yening Wang ,
Yifeng Yan  and
Zhongxian Zhao
Jin Wu
Affiliation:
Department of Physics, Nanjing University, Nanjing 210008, The People's Republic of China
Yening Wang
Affiliation:
Department of Physics, Nanjing University, Nanjing 210008, The People's Republic of China
Yifeng Yan
Affiliation:
Institute of Physics, Chinese Academy of Sciences, Beijing, The People's Republic of China
Zhongxian Zhao
Affiliation:
Institute of Physics, Chinese Academy of Sciences, Beijing, The People's Republic of China
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Abstract

The temperature dependence of the in-plane C11 C22. C12 and C66 modes between 80 and 260 K of superconducting crystals of Bi2Sr2Ca1Cu208 have been obtained via the measurements of ultrasonic-velocities. The anisotropic elasticity in the a-b plane of single crystal Bi2 Sr2Ca1Cu2O8 is manifest. The shear modulus of sound propagation along the [110] with the polarization has been also calculated and shows an overall trend of softening over a wide temperature range above Tc. The shear modulus C6 6 shows three obvious softening minima around 240–250 K, 150 K and 100 K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 193: Symposium Q – Atomic Scale Calculations of Structure in Materials , 1990 , 137
Copyright
Copyright © Materials Research Society 1990

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References

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