Magnetoresistance and high-temperature resistivity of Bi2.1Sr1.9Ca1.0Cu2O 8+δ single crystals

Takao Watanabe, Azusa Matsuda

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We have measured the normal state magnetoresistance (-Δσ; B ⊥ I ⊥ c, - Δσ; B∥I ⊥ c) of a Bi2.1Sr1.9Ca1.0Cu2O 8+δ single crystal. At low temperatures (ε≡(T - Tc)/Tc ≤, 0.1), the orbital magnetoresistance (-Δσ + Δδ) can be well fitted by the 2D limit of the Aslamazov-Larkin (AL) fluctuation (-ΔALO α ε-3). At high temperatures (ε > 0.1), it can be fitted either by the contribution of the Maki-Thompson (MT) fluctuation or by the anomalous normal state magnetoresistance. We have also measured the resistivities of these crystals up to 870 K and found that in this slightly overdoped region the scattering rate can be expressed as a sum of the typical T-linear and the T2 components. The T2 component can be assigned to electron-electron scattering originating from the Fermi liquid.

Original languageEnglish
Pages (from-to)313-316
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume263
Issue number1-4
Publication statusPublished - 1996 May
Externally publishedYes

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Magnetoresistance
Single crystals
electrical resistivity
single crystals
Fermi liquids
electron scattering
Electron scattering
orbitals
Temperature
scattering
Scattering
crystals
Crystals
electrons
Electrons

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Magnetoresistance and high-temperature resistivity of Bi2.1Sr1.9Ca1.0Cu2O 8+δ single crystals. / Watanabe, Takao; Matsuda, Azusa.

In: Physica C: Superconductivity and its Applications, Vol. 263, No. 1-4, 05.1996, p. 313-316.

Research output: Contribution to journalArticle

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