Young's modulus of NbSe3

J. W. Brill, N. P. Ong

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33 Scopus citations


Using the Barmatz vibrating reed technique we have measured the Young's modulus of NbSe3. An anomaly is observed at T1 (142 K) but not at T2 (58 K). Taken together with published specific heat data our results provide upper (lower) bounds for the anisotropy of the transition-temperature-stress-dependence at T1 (T2).

Original languageEnglish
Pages (from-to)1075-1078
Number of pages4
JournalSolid State Communications
Issue number12
StatePublished - Mar 1978

Bibliographical note

Funding Information:
where e is the applied electric field and 0an and 0bn are field-independent quantities. In equation (1), the second subscript n labels the phase transition. The activation field e~,diverges close to the transition temperature and the quantity a~ a~, /(a 0b ~ has been shown \[4\] to behave like an order pa0ram+eter. NbSe 3 undergoes a third transition to the superconducting state \[5\]when hydrostatic pressure is applied (1, is 6K at 10K bar) and recent Hall effect \[6\] measurements show a striking loss of carriers at T1 and T2 which correlates with the rapid rise in the resistivity at these temperatures. The frequency dependence of the resistivity is also anomalous \[2\].Both anomalies are sharply reduced at 10 GHz. The transitions have been tentatively associated \[1—3\w] ith charge-density-wave \[7\](CDW) formation; the non-Ohmic behavior and anomalous frequency dependence of the conductivity have been described \[2,8\] in terms of excitations * Work supported in part by a grant from the Office of Naval Research (N000l4-77-C-0473) and by the Stanford Center for Materials Research, NSF Contract No. DMR-72-03022.

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry


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