Single-crystal elastic constants of Zr$sub 2$Ni

Journal Article · Mon Dec 01 04:00:00 EST 1975 · J. Appl. Phys., v. 46, no. 12, pp. 5080-5083

OSTI ID:4131022

Eshelman, F R; Smith, J F

The ultrasonic pulse-echo-overlap technique has been used to determine the six independent elastic constants of tetragonal Zr$sub 2$Ni over the temperature range 4.2 to 300$sup 0$K. The temperature dependence of the shear constants, particularly C$sub 66$, are atypical and indicate a significant degree of mode softening at low temperatures. The results correlate with the recent calculation of Sinha and Harmon in that Zr$sub 2$Ni satisfies their conditions for the development of charge density waves with attendant mode softening and support the view that mode softening and superconductivity are correlated. (AIP)

• Research Organization: Ames Laboratory, United States Energy Resources Development Administration and Department of Materials Science, Iowa State University, Ames, Iowa 50010
• NSA Number: NSA-33-009855
• OSTI ID: 4131022
• Journal Information: J. Appl. Phys., v. 46, no. 12, pp. 5080-5083, Journal Name: J. Appl. Phys., v. 46, no. 12, pp. 5080-5083; ISSN JAPIA
• Country of Publication: United States
• Language: English

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TEMPERATURE DEPENDENCE
ULTRASONIC WAVES