Transport properties of zinc-doped YBa2Cu3O7-δ thin films

D J C  WALKER; A P  MACKENZIE; J R  COOPER

doi:10.1103/PhysRevB.51.15653

Transport properties of zinc-doped YBa2Cu3O7-δ thin films

D J C WALKER, A P MACKENZIE, J R COOPER

Research output: Contribution to journal › Comment/debate › peer-review

Abstract

We report the results of transport measurements on single-crystal YBa2(Cu1-xZnx)3O7-δ thin films grown by laser ablation. Matthiessen’s rule is obeyed as a function of x at optimum doping (δ∼0.05), but is violated in underdoped samples, where there is evidence from the resistivity that zinc fills in the pseudogap that is observed for samples with x=0, δ ≳0.2. As x and δ are increased, Tc drops rapidly, and a superconductor-insulator transition is observed at a sheet resistance of approximately h/(2e)2 per copper-oxygen bilayer, for various different combinations of x and δ.

Original language	English
Pages (from-to)	15653-15656
Number of pages	4
Journal	Physical Review. B, Condensed matter
Volume	51
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.51.15653
Publication status	Published - 1 Jun 1995

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@article{e7ba8a99728b457f8ca287b610ec044f,

title = "Transport properties of zinc-doped YBa2Cu3O7-δ thin films",

abstract = "We report the results of transport measurements on single-crystal YBa2(Cu1-xZnx)3O7-δ thin films grown by laser ablation. Matthiessen{\textquoteright}s rule is obeyed as a function of x at optimum doping (δ∼0.05), but is violated in underdoped samples, where there is evidence from the resistivity that zinc fills in the pseudogap that is observed for samples with x=0, δ ≳0.2. As x and δ are increased, Tc drops rapidly, and a superconductor-insulator transition is observed at a sheet resistance of approximately h/(2e)2 per copper-oxygen bilayer, for various different combinations of x and δ.",

author = "WALKER, {D J C} and MACKENZIE, {A P} and COOPER, {J R}",

year = "1995",

month = jun,

day = "1",

doi = "10.1103/PhysRevB.51.15653",

language = "English",

volume = "51",

pages = "15653--15656",

journal = "Physical Review. B, Condensed matter",

issn = "0163-1829",

publisher = "American Physical Society",

number = "21",

}

TY - JOUR

T1 - Transport properties of zinc-doped YBa2Cu3O7-δ thin films

AU - WALKER, D J C

AU - MACKENZIE, A P

AU - COOPER, J R

PY - 1995/6/1

Y1 - 1995/6/1

N2 - We report the results of transport measurements on single-crystal YBa2(Cu1-xZnx)3O7-δ thin films grown by laser ablation. Matthiessen’s rule is obeyed as a function of x at optimum doping (δ∼0.05), but is violated in underdoped samples, where there is evidence from the resistivity that zinc fills in the pseudogap that is observed for samples with x=0, δ ≳0.2. As x and δ are increased, Tc drops rapidly, and a superconductor-insulator transition is observed at a sheet resistance of approximately h/(2e)2 per copper-oxygen bilayer, for various different combinations of x and δ.

AB - We report the results of transport measurements on single-crystal YBa2(Cu1-xZnx)3O7-δ thin films grown by laser ablation. Matthiessen’s rule is obeyed as a function of x at optimum doping (δ∼0.05), but is violated in underdoped samples, where there is evidence from the resistivity that zinc fills in the pseudogap that is observed for samples with x=0, δ ≳0.2. As x and δ are increased, Tc drops rapidly, and a superconductor-insulator transition is observed at a sheet resistance of approximately h/(2e)2 per copper-oxygen bilayer, for various different combinations of x and δ.

U2 - 10.1103/PhysRevB.51.15653

DO - 10.1103/PhysRevB.51.15653

M3 - Comment/debate

SN - 0163-1829

VL - 51

SP - 15653

EP - 15656

JO - Physical Review. B, Condensed matter

JF - Physical Review. B, Condensed matter

IS - 21

ER -

Transport properties of zinc-doped YBa2Cu3O7-δ thin films

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