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Electrical resistance of nickel in the range 300-725 K and 0-2 GPa
Umeå University, Faculty of Science and Technology, Physics.
1988 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, Vol. 38, no 17, 12283-12289 p.Article in journal (Refereed) Published
Abstract [en]

The electrical resistance R of Ni has been measured as a function of temperature T and pressure p over the range 300–725 K and 0–2 GPa (0–20 kbar). In contrast to recent reports, we see no anomalies in R(p) at 300 K, and we see no change in sign in dR/dp at the Curie temperature TC. The pressure coefficient of R was -1.82×10-2 GPa-1 at 300 K, increasing with T to a peak value of -2.5×10-2 GPa-1 at TC, above which it rapidly decreased to a value 20% below the room-temperature value. The data are analyzed using simple models; the resistivity at constant volume is found to deviate significantly from the constant-p data above TC and a small anomaly is detected in d(lnR)/dp that could possibly be an effect of band-structure changes at TC.

Place, publisher, year, edition, pages
1988. Vol. 38, no 17, 12283-12289 p.
Keyword [en]
Nickel, Ni, high pressure, electric resistivity, conductivity, stability, Curie point
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-26754DOI: 10.1103/PhysRevB.38.12283OAI: oai:DiVA.org:umu-26754DiVA: diva2:273937
Available from: 2009-10-26 Created: 2009-10-26 Last updated: 2010-02-03

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Publisher's full texthttp://link.aps.org/doi/10.1103/PhysRevB.38.12283

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Sundqvist, Bertil

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