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In-plane and Out-of-plane Magnetoresistance in Bi2Sr2CaCu2O8+cursive Greek chi with Various Carrier Densities

Journal Article


Abstract


  • The in-plane and out-of-plane magnetoresistance of Bi2Sr2CaCu2O8+cursive Greek chi single crystals was investigated in magnetic fields of 12 T, oriented parallel to the c axes. Crystals with different carrier concentrations, corresponding to the underdoped, optimally doped, and overdoped region of the phase diagram of high-temperature superconductors, were prepared by variation of the oxygen content. Above the critical temperature, the magnetoresistance is positive for in-plane and negative for out-of-plane currents in all samples. With recent theories for superconducting order-parameter fluctuations, the in-plane magnetoresistance can be described well for all samples. Only the out-of-plane magnetoresistance of the underdoped crystal shows distinct deviations from the theoretical predictions and appears to be influenced by the 'pseudo-gap'.

Publication Date


  • 1999

Citation


  • Heine, G., Lang, W., Wang, X. L., & Dou, S. X. (1999). In-plane and Out-of-plane Magnetoresistance in Bi2Sr2CaCu2O8+cursive Greek chi with Various Carrier Densities. Journal of Low Temperature Physics, 117(5-6), 1253-1257. doi:10.1023/a:1022540221637

Scopus Eid


  • 2-s2.0-0042544125

Start Page


  • 1253

End Page


  • 1257

Volume


  • 117

Issue


  • 5-6

Abstract


  • The in-plane and out-of-plane magnetoresistance of Bi2Sr2CaCu2O8+cursive Greek chi single crystals was investigated in magnetic fields of 12 T, oriented parallel to the c axes. Crystals with different carrier concentrations, corresponding to the underdoped, optimally doped, and overdoped region of the phase diagram of high-temperature superconductors, were prepared by variation of the oxygen content. Above the critical temperature, the magnetoresistance is positive for in-plane and negative for out-of-plane currents in all samples. With recent theories for superconducting order-parameter fluctuations, the in-plane magnetoresistance can be described well for all samples. Only the out-of-plane magnetoresistance of the underdoped crystal shows distinct deviations from the theoretical predictions and appears to be influenced by the 'pseudo-gap'.

Publication Date


  • 1999

Citation


  • Heine, G., Lang, W., Wang, X. L., & Dou, S. X. (1999). In-plane and Out-of-plane Magnetoresistance in Bi2Sr2CaCu2O8+cursive Greek chi with Various Carrier Densities. Journal of Low Temperature Physics, 117(5-6), 1253-1257. doi:10.1023/a:1022540221637

Scopus Eid


  • 2-s2.0-0042544125

Start Page


  • 1253

End Page


  • 1257

Volume


  • 117

Issue


  • 5-6