Supporting evidence of the unusual insulating behavior in the low-temperature normal-state resistivity of underdoped La{sub 2-x}Sr{sub x}CuO{sub 4}

Journal Article · Fri Nov 01 00:00:00 EST 1996 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF00768492· OSTI ID:457248

Ando, Yoichi; Boebinger, G S; Passner, A ^[1]

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1. Bell Labs., Murray Hill, NJ (United States); and others

Low-temperature anisotropic normal-state resistivity is measured in La{sub 2{minus}x}Sr{sub x}CuO{sub 4} single crystals by suppressing the superconductivity with a 61-T pulsed magnetic field. The logarithmic temperature dependence of both {rho}{sub ab} and {rho}{sub c} is observed in a much cleaner x=0.08 samples as well as in samples with x=0.15 which is near optimum doping, but slightly underdoped. This extension of the original observation suggests that the unusual insulating behavior is a generic property of the low-temperature normal-state of underdoped La{sub 2-x}Sr{sub x}CuO{sub 4} once superconductivity is suppressed.

• Sponsoring Organization: USDOE
• OSTI ID: 457248
• Report Number(s): CONF-960808-; ISSN 0022-2291; TRN: 97:001035-0070
• Journal Information: Journal of Low Temperature Physics, Vol. 105, Issue 3-4; Conference: 3. international conference on physics and chemistry of molecular and oxide superconductors, Karlsruhe (Germany), 2-6 Aug 1996; Other Information: PBD: Nov 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LANTHANUM OXIDES
ELECTRIC CONDUCTIVITY
STRONTIUM OXIDES
COPPER OXIDES
TEMPERATURE DEPENDENCE
ANISOTROPY
MONOCRYSTALS