Ultraprecise studies of the thermal expansion coefficient of diamond using backscattering x-ray diffraction

Stanislav Stoupin and Yuri V. Shvyd’ko
Phys. Rev. B 83, 104102 – Published 17 March 2011

Abstract

The linear thermal expansion coefficient of diamond crystals of type IIa and type Ia was measured in the temperature range from 10 to 295 K. Neither negative thermal expansion nor any substantial difference in the thermal expansion coefficient in crystals of the different types were observed. An empirical expression was obtained that approximates the temperature dependence of the thermal expansion coefficient of diamond. The T3 temperature dependence of a Debye solid holds below 100 K with an accuracy of 108K1. A slight increase in the value of the lattice parameter was found for the Ia-type crystal, which suggests lattice dilatation by nitrogen impurity. The measurements were performed using Bragg diffraction in backscattering from diamond crystals of highly monochromatic 23.7 keV x rays with the recently demonstrated high relative accuracy of 1.2×108 in the determination of the lattice parameter [S. Stoupin and Yu. Shvyd’ko, Phys. Rev. Lett. 104, 085901 (2010)].

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 6 November 2010

DOI:https://doi.org/10.1103/PhysRevB.83.104102

©2011 American Physical Society

Authors & Affiliations

Stanislav Stoupin and Yuri V. Shvyd’ko

  • Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 83, Iss. 10 — 1 March 2011

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×