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Coleman, R. V.; Eiserman, G.; Hillenius, S.J.; Mitchell, Anastasia; Vicent, J. L.

doi:10.1103/physrevb.27.125

Cited by 69 publications

(38 citation statements)

References 19 publications

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“…Dimensional crossover predicted by Klemm et al was experimentally confirmed in some layered superconductors [16,17]. The observation of the two-dimensional nature in the optimal-doped high T c superconductors [1][2][3] could be closely related to the Klemm's theory.…”

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confidence: 73%

Two- to Three-Dimensional Crossover in the Electronic Structure of(Bi,Pb)2(Sr,La)2CuO<

et al. 2005

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The hole-concentration (x) dependence of the three-dimensional energy-momentum dispersion in (Bi, Pb)2(Sr, La)2CuO(6+delta) has been investigated by angle-resolved photoemission spectroscopy. For a heavily overdoped sample of T(c) < or = 0.5 K, an energy dispersion of approximately 10 meV in width is observed in the vicinity of the (pi, 0) point with varying momentum along the c axis (k(z)). This k(z) dispersion is zero for underdoped, optimally doped, and slightly overdoped samples up to a doping level corresponding to T(c) = 22 k. At higher doping levels we observe significant dispersion of the order of 10 meV (sample with T(c) < or = 0.5 K). This is clear evidence that at a doping value corresponding to T(c) = 22 K, a crossover from two- to three-dimensional electronic structure occurs.

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confidence: 73%

Two- to Three-Dimensional Crossover in the Electronic Structure of(Bi,Pb)2(Sr,La)2CuO<

et al. 2005

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“…1); see also Ikebe et al , 1981;Coleman et al , 1983; and for thin films Kobayashi et al , 1983). The shape and size of H, 2( T/T, ) cannot be fitted by any variant of dirty superconductor theory.…”

Section: Tc0mentioning

confidence: 97%

Disordered electronic systems

Lee,

Ramakrishnan

1985

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This paper' reviews the progress made in the last several years in understanding the properties of disordered electronic systems. Even in the metallic limit, serious deviations from the Boltzmann transport theory and Fermi-liquid theory have been predicted and observed experimentally. There are two important ingredients in this new understanding: the concept of Anderson localization and the effects of interaction between electrons in a disordered medium. This paper emphasizes the theoretical aspect, even though some of the relevant experiments are also examined. The bulk of the paper focuses on the metallic side, but the authors also discuss the metal-to-insulator transition and comment on problems associated with the insulator.

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“…The Tc values of 4.9 K for both compounds are much higher than that of the TMA compound. They are among the highest values known for molecular intercalation compounds with the exception of the DMA intercalation compound [3]. The reason for the very high Tc values in these compounds is not quite clear.…”

Section: R Esu Lts An D In Terp Retationmentioning

confidence: 89%

“…Only a few of these compounds have been studied afterwards in detail [2][3][4], prob ably due to the lack of homogeneously intercalated crystals of high quality.…”

Section: Introductionmentioning

confidence: 99%

Intercalation Compounds of Large Organic Molecular Cations in the Layered Dichalcogenide 2H-TaS₂

Hauptmann

Lerf

Biberacher

1996

Zeitschrift Für Naturforschung B

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We report on the first successful intercalation of organic cations in large crystals of 2H-TaS2 by electrochemical methods. The following species have been intercalated: Tetramethylammonium, methylviologen and methylene blue. Whereas the first species can be intercalated in chemical equilibrium like the hydrated metal ions, the intercalation of the other two more complex cations is accompanied by side reactions. The most complex system is methylene blue/TaS2 where we observe three different phases depending on the preparation conditions. The electrical resistivity as a function of temperature has been measured by a 4-point ac method on single crystals immediately after intercalation. All samples are superconductors, some of them having a transition temperature to the superconducting state Tc of 4.9 K, which is quite high for organic molecule intercalation compounds of 2H-TaS2. The anomaly of the resistivity at 77 K in the empty host lattice is suppressed in all of the intercalated samples even at the very low charge transfer of n = 0.06.

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Dimensional crossover in the superconducting intercalated layer compound2H-TaS2

Cited by 69 publications

References 19 publications

Two- to Three-Dimensional Crossover in the Electronic Structure of(Bi,Pb)2(Sr,La)2CuO<

Two- to Three-Dimensional Crossover in the Electronic Structure of(Bi,Pb)2(Sr,La)2CuO<

Disordered electronic systems

Intercalation Compounds of Large Organic Molecular Cations in the Layered Dichalcogenide 2H-TaS₂

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Dimensional crossover in the superconducting intercalated layer compound2H-TaS2

Cited by 69 publications

References 19 publications

Two- to Three-Dimensional Crossover in the Electronic Structure of(Bi,Pb)2(Sr,La)2CuO<

Two- to Three-Dimensional Crossover in the Electronic Structure of(Bi,Pb)2(Sr,La)2CuO<

Disordered electronic systems

Intercalation Compounds of Large Organic Molecular Cations in the Layered Dichalcogenide 2H-TaS2

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Intercalation Compounds of Large Organic Molecular Cations in the Layered Dichalcogenide 2H-TaS₂