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Charge confinement on the CuO 2 planes in slightly overdoped YBa 2 Cu 3 O 7 - δ and the role of metallic chains

Charge confinement on the CuO 2 planes in slightly overdoped YBa 2 Cu 3 O 7 - δ and the role of... We have probed the origin of the metallic c -axis transport in slightly overdoped YBa 2 Cu 3 O 7 - ∂ ( ∂ ≈ 0 . 0 5 ) via measurements of the normal-state c -axis magnetoresistance (MR). An orbital contribution to the transverse MR, a signature of coherent band motion, arises only from the component of the magnetic field perpendicular to the CuO chains. This result implies that the chains are primarily responsible for coherent c -axis transport in YBa 2 Cu 3 O 7 - δ and that those regions of the CuO 2 planes not hybridized with the chains remain effectively two dimensional, even in the absence of a normal-state gap. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Charge confinement on the CuO 2 planes in slightly overdoped YBa 2 Cu 3 O 7 - δ and the role of metallic chains

Hussey, N. E; Takagi, H. E; Iye, Y. E
Physical Review B , Volume 61 (10) – Mar 1, 2000
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Publisher
American Physical Society (APS)
Copyright
Copyright © 2000 The American Physical Society
ISSN
1095-3795
DOI
10.1103/PhysRevB.61.R6475
Publisher site
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Abstract

We have probed the origin of the metallic c -axis transport in slightly overdoped YBa 2 Cu 3 O 7 - ∂ ( ∂ ≈ 0 . 0 5 ) via measurements of the normal-state c -axis magnetoresistance (MR). An orbital contribution to the transverse MR, a signature of coherent band motion, arises only from the component of the magnetic field perpendicular to the CuO chains. This result implies that the chains are primarily responsible for coherent c -axis transport in YBa 2 Cu 3 O 7 - δ and that those regions of the CuO 2 planes not hybridized with the chains remain effectively two dimensional, even in the absence of a normal-state gap.

Journal

Physical Review B – American Physical Society (APS)

Published: Mar 1, 2000

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