Superconductivity in Thin Films of Boron-Doped Carbon Nanotubes

Murata, N.; Haruyama, J.; Reppert, Jason; Rao, Apparao M.; Koretsune, Takashi; Saito, Susumu; Matsudaira, M.; Yagi, Y.

doi:10.1103/physrevlett.101.027002

Cited by 76 publications

(52 citation statements)

References 20 publications

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“…Recently Murata et al ͑2008͒ reported the observation of the Meissner effect at T c = 12 K in thin films of CB y -SWNTs synthesized with the laser vaporization technique. They pointed out that the Meissner effect was sensitive to the degree of uniformity of the thin film and that by optimizing the control of the deposition of the films higher T c values ͑between 30 and 40 K͒ could be reached.…”

Section: Transportmentioning

confidence: 99%

The physical and chemical properties of heteronanotubes

et al. 2010

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Carbon nanotubes undoubtedly take a leading position in nanotechnology research owing to their well-known outstanding structural and electronic properties. Inspired by this, hybrid and functionalized tubular structures have been constructed via several modification paths that involve the presence of molecules, generation of defects, and partial or full replacement of the carbon atoms, always maintaining a nanotube structure. The possibilities are countless. However, this review is mainly dedicated to giving a fundamental insight into the concepts behind wall modification, doping, and formation of a carbon nanotube structure. Theoretical concepts and experimental achievements ranging from carbon nanotubes with low B or N doping to the new physics behind boron nitride nanotubes are covered. Furthermore, special attention is devoted to the bulk and local characterization tools employed with these materials, their suitability and limitations. The theoretical approaches to describing the physical and chemical properties of heteronanotubes are objectively analyzed versus the materials available at this moment.

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Section: Transportmentioning

confidence: 99%

The physical and chemical properties of heteronanotubes

et al. 2010

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“…Also there are theoretical studies related to superconductivity in doped SWCNT [111] experimental studies are rare for intercalated SWCNT. Superconductivity in B-doped SWCNT was claimed to be up to a T c of 12 K [112], for SWCNT in zeolites a T c of 15 K was shown [113].…”

Section: Feature Articlementioning

confidence: 99%

Raman spectroscopy of graphite intercalation compounds: Charge transfer, strain, and electron–phonon coupling in graphene layers

Chacón-Torres

Wirtz

Pichler

2014

Physica Status Solidi (b)

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Graphite intercalation compounds (GICs) are an interesting and highly studied field since 1970's. It has gained renewed interest since the discovery of superconductivity at high temperature for CaC 6 and the rise of graphene. Intercalation is a technique used to introduce atoms or molecules into the structure of a host material. Intercalation of alkali metals in graphite has shown to be a controllable procedure recently used as a scalable technique for bulk production of graphene, and nano-ribbons by induced exfoliation of graphite. It also creates supra-molecular interactions between the host and the intercalant, inducing changes in the electronic, mechanical, and physical properties of the host. GICs are the mother system of intercalation also employed in fullerenes, carbon nanotubes, graphene, and carbon-composites. We will show how a combination of Raman and ab-initio calculations of the density and the electronic band structure in GICs can serve as a tool to elucidate the electronic structure, electron-phonon coupling, charge transfer, and lattice parameters of GICs and the graphene layers within. This knowledge of GICs is of high importance to understand superconductivity and to set the basis for applications with GICs, graphene and other nano-carbon based materials like nanocomposites in batteries and nanoelectronic devices.

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“…Besides the well-known Luttinger liquid (LL) state, intrinsic superconductivity has been experimentally observed or theoretically predicted in SWCNTs, [1][2][3][4][5][6][7][8][9][10][11][12][13] CNT ropes, [14][15][16][17] multiwall CNTs (MWCNTs), [18][19][20][21][22][23] and doped CNTs. [24][25][26][27] For the case of ultrathin diameter 4-Angstrom metallic SWCNTs, experimental observation of the Meissner effect in 2001 1 has prompted some theoretical works exploring the possibility of superconductivity being the ground state of the system. While some authors predicted Peierls ground state, [28][29][30][31][32] others predicted superconductivity.…”

Section: Introductionmentioning

confidence: 99%

Crossover from Peierls distortion to one-dimensional superconductivity in arrays of (5,0) carbon nanotubes

et al. 2011

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By performing second-order renormalization group analysis on thin arrays of 4-Angstrom (5,0) carbon nanotubes (CNTs) embedded in aluminophosphate-five (AFI) zeolite crystals, we identify singlet superconductivity instability to be dominant at low temperatures, attributable to the screening of the electron-electron Coulomb interaction in the array configuration. Our analysis also shows that there is a crossover as the system scales to lower energy/temperatures, whereby one-dimensional (1D) superconductivity is the ground state, but the response function of the Peierls distortion/charge density wave (CDW) order dominates at the higher energy regime. This crossover behavior indicates that for a thin array of (5,0) CNTs the CDW order may represent an excited state of the array, so that the CDW characteristics can appear at finite temperatures, in conjunction with 1D superconductivity. Experimental results are presented to support this interpretation.

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Superconductivity in Thin Films of Boron-Doped Carbon Nanotubes

Cited by 76 publications

References 20 publications

The physical and chemical properties of heteronanotubes

The physical and chemical properties of heteronanotubes

Raman spectroscopy of graphite intercalation compounds: Charge transfer, strain, and electron–phonon coupling in graphene layers

Crossover from Peierls distortion to one-dimensional superconductivity in arrays of (5,0) carbon nanotubes

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