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Electrical resistan...
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Sundqvist, BertilUmeå universitet,Institutionen för fysik
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Electrical resistance of nickel in the range 300-725 K and 0-2 GPa
- Artikel/kapitelEngelska1988
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LIBRIS-ID:oai:DiVA.org:umu-26754
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-26754URI
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https://doi.org/10.1103/PhysRevB.38.12283DOI
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Språk:engelska
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Sammanfattning på:engelska
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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.
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Umeå universitetInstitutionen för fysik
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Ingår i:Physical Review B. Condensed Matter and Materials Physics38:17, s. 12283-122891098-01211550-235X
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