Scaling behavior in normal-state properties of underdoped TmBaCuO single crystals

E. B. Amitin; V. Ya Dikovsky; A. N. Lavrov; A. P. Shelkovnikov

doi:10.1016/S0921-4526(98)00841-2

Scaling behavior in normal-state properties of underdoped TmBaCuO single crystals

E. B. Amitin, V. Ya Dikovsky, A. N. Lavrov, A. P. Shelkovnikov

Research output: Contribution to journal › Article › peer-review

Abstract

Universal behavior of the in-plane resistivity is observed in the normal state of underdoped TmBa₂Cu₃O_x single crystals. In the region 6.37 < x < 6.71 the dependencies of the resistivity derivative on temperature and oxygen content, ρ′(T, x), can be presented as a universal function of single dimensionless argument T/T*(x). A single electron transport mechanism and a single energy scale in the investigated area of the phase diagram are necessary for the appearance of such scaling effect. In the low-temperature region the behavior of the universal curve is close to exponential ρ′ = ρ′_max(A + B exp( -T*/T)). This fact may point to an important role of pseudogap or spin gap effects in transport properties of the cuprate systems.

Original language	English
Pages (from-to)	526-527
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	259-261
DOIs	https://doi.org/10.1016/S0921-4526(98)00841-2
State	Published - 1 Jan 1999
Externally published	Yes

Keywords

Pseudogap
Resistivity
Scaling

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(98)00841-2

Cite this

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title = "Scaling behavior in normal-state properties of underdoped TmBaCuO single crystals",

abstract = "Universal behavior of the in-plane resistivity is observed in the normal state of underdoped TmBa2Cu3Ox single crystals. In the region 6.37 < x < 6.71 the dependencies of the resistivity derivative on temperature and oxygen content, ρ′(T, x), can be presented as a universal function of single dimensionless argument T/T*(x). A single electron transport mechanism and a single energy scale in the investigated area of the phase diagram are necessary for the appearance of such scaling effect. In the low-temperature region the behavior of the universal curve is close to exponential ρ′ = ρ′max(A + B exp( -T*/T)). This fact may point to an important role of pseudogap or spin gap effects in transport properties of the cuprate systems.",

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T1 - Scaling behavior in normal-state properties of underdoped TmBaCuO single crystals

AU - Amitin, E. B.

AU - Dikovsky, V. Ya

AU - Lavrov, A. N.

AU - Shelkovnikov, A. P.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Universal behavior of the in-plane resistivity is observed in the normal state of underdoped TmBa2Cu3Ox single crystals. In the region 6.37 < x < 6.71 the dependencies of the resistivity derivative on temperature and oxygen content, ρ′(T, x), can be presented as a universal function of single dimensionless argument T/T*(x). A single electron transport mechanism and a single energy scale in the investigated area of the phase diagram are necessary for the appearance of such scaling effect. In the low-temperature region the behavior of the universal curve is close to exponential ρ′ = ρ′max(A + B exp( -T*/T)). This fact may point to an important role of pseudogap or spin gap effects in transport properties of the cuprate systems.

AB - Universal behavior of the in-plane resistivity is observed in the normal state of underdoped TmBa2Cu3Ox single crystals. In the region 6.37 < x < 6.71 the dependencies of the resistivity derivative on temperature and oxygen content, ρ′(T, x), can be presented as a universal function of single dimensionless argument T/T*(x). A single electron transport mechanism and a single energy scale in the investigated area of the phase diagram are necessary for the appearance of such scaling effect. In the low-temperature region the behavior of the universal curve is close to exponential ρ′ = ρ′max(A + B exp( -T*/T)). This fact may point to an important role of pseudogap or spin gap effects in transport properties of the cuprate systems.

KW - Pseudogap

KW - Resistivity

KW - Scaling

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DO - 10.1016/S0921-4526(98)00841-2

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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Scaling behavior in normal-state properties of underdoped TmBaCuO single crystals

Abstract

Keywords

ASJC Scopus subject areas

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