1998
DOI: 10.1103/physrevlett.81.5636
|View full text |Cite
|
Sign up to set email alerts
|

Normal-State Resistivity Anisotropy in UnderdopedRBa2Cu3O6+

Abstract: We have revealed new features in the out-of-plane resistivity ρc of heavily underdoped RBa2Cu3O6+x (R=Tm,Lu) single crystals, which give evidence for two distinct mechanisms contributing the c-axis transport. We have observed a crossover towards "metal-like" (∂ρc/∂T > 0) behavior at the temperature Tm which quickly increases with decreasing doping. The "metallike" conductivity contribution dominates at T < Tm and provides a saturation of the resistivity anisotropy, ρc/ρ ab . The antiferromagnetic ordering is f… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
1

Citation Types

4
30
0

Year Published

1999
1999
2008
2008

Publication Types

Select...
4
2

Relationship

3
3

Authors

Journals

citations
Cited by 28 publications
(34 citation statements)
references
References 17 publications
(36 reference statements)
4
30
0
Order By: Relevance
“…The dynamic AF correlations developed in the CuO 2 planes evolve into the long-range AF order upon crossing the Néel temperature T N [1], and one can expect some singular behavior to show up in the properties governed by the the magnetic interactions. A magnetotransport study in the vicinity of T N is therefore an attractive possibility to clarify the role of spin degrees of freedom in the peculiar electron transport.In this Letter, we present a study of the in-plane and out-of-plane MR of heavily underdoped antiferromagnetic Y-123 crystals, supplemented by measurements of the Lu-123 crystal used earlier for the study of the phase diagram [9]. We find that the out-of-plane MR undergoes a drastic change in the vicinity of the Néel temperature, increasing by about two orders of magnitude with a transition into the AF state.…”
mentioning
confidence: 87%
See 3 more Smart Citations
“…The dynamic AF correlations developed in the CuO 2 planes evolve into the long-range AF order upon crossing the Néel temperature T N [1], and one can expect some singular behavior to show up in the properties governed by the the magnetic interactions. A magnetotransport study in the vicinity of T N is therefore an attractive possibility to clarify the role of spin degrees of freedom in the peculiar electron transport.In this Letter, we present a study of the in-plane and out-of-plane MR of heavily underdoped antiferromagnetic Y-123 crystals, supplemented by measurements of the Lu-123 crystal used earlier for the study of the phase diagram [9]. We find that the out-of-plane MR undergoes a drastic change in the vicinity of the Néel temperature, increasing by about two orders of magnitude with a transition into the AF state.…”
mentioning
confidence: 87%
“…In this Letter, we present a study of the in-plane and out-of-plane MR of heavily underdoped antiferromagnetic Y-123 crystals, supplemented by measurements of the Lu-123 crystal used earlier for the study of the phase diagram [9]. We find that the out-of-plane MR undergoes a drastic change in the vicinity of the Néel temperature, increasing by about two orders of magnitude with a transition into the AF state.…”
mentioning
confidence: 87%
See 2 more Smart Citations
“…The heavily-underdoped YBCO crystals, though located deep in the AF range of the phase diagram (x≈0.3), are far from conventional insulators: the in-plane resistivity ρ ab remains "metallic" at high T and it grows slower than expected for the hopping electron transport at low T [8,9]. These AF crystals demonstrate an unusual behavior of the in-plane MR, ∆ρ ab /ρ ab , when the magnetic field H is applied along the CuO 2 planes, as shown in Fig.…”
Section: Resultsmentioning
confidence: 98%