|
Records |
Links |
|
Author |
Yang, Y.; Fedorov, G.; Shafranjuk, S. E.; Klapwijk, T. M.; Cooper, B. K.; Lewis, R. M.; Lobb, C. J.; Barbara, P. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Electronic transport and possible superconductivity at Van Hove singularities in carbon nanotubes |
Type |
Journal Article |
|
Year |
2015 |
Publication |
Nano Lett. |
Abbreviated Journal |
Nano Lett. |
|
|
Volume |
15 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
12 |
Pages |
7859-7866 |
|
|
Keywords |
carbon nanotubes, CNT, tunable superconductivity, van Hove singularities |
|
|
Abstract |
Van Hove singularities (VHSs) are a hallmark of reduced dimensionality, leading to a divergent density of states in one and two dimensions and predictions of new electronic properties when the Fermi energy is close to these divergences. In carbon nanotubes, VHSs mark the onset of new subbands. They are elusive in standard electronic transport characterization measurements because they do not typically appear as notable features and therefore their effect on the nanotube conductance is largely unexplored. Here we report conductance measurements of carbon nanotubes where VHSs are clearly revealed by interference patterns of the electronic wave functions, showing both a sharp increase of quantum capacitance, and a sharp reduction of energy level spacing, consistent with an upsurge of density of states. At VHSs, we also measure an anomalous increase of conductance below a temperature of about 30 K. We argue that this transport feature is consistent with the formation of Cooper pairs in the nanotube. |
|
|
Address |
Department of Physics, Georgetown University , Washington, District of Columbia 20057, United States |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1530-6984 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:26506109; Suuplementary info (attached to pdf) DOI: 10.1021/acs.nanolett.5b02564 |
Approved |
no |
|
|
Call Number |
|
Serial |
1782 |
|
Permanent link to this record |
|
|
|
|
Author |
Akhmadishina, K. F.; Bobrinetskiy, I. I.; Komarov, I. A.; Malovichko, A. M.; Nevolin, V. K.; Fedorov, G. E.; Golovin, A. V.; Zalevskiy, A. O.; Aidarkhanov, R. D. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Fast-response biological sensors based on single-layer carbon nanotubes modified with specific aptamers |
Type |
Journal Article |
|
Year |
2015 |
Publication |
Semicond. |
Abbreviated Journal |
Semicond. |
|
|
Volume |
49 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
13 |
Pages |
1749-1753 |
|
|
Keywords |
carbon nanotubes, CNT detectors |
|
|
Abstract |
The possibility of the fabrication of a fast-response biological sensor based on a composite of single-layer carbon nanotubes and aptamers for the specific detection of proteins is shown. The effect of modification of the surface of the carbon nanotubes on the selectivity and sensitivity of the sensors is investigated. It is shown that carboxylated nanotubes have a better selectivity for detecting thrombin. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1063-7826 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1783 |
|
Permanent link to this record |
|
|
|
|
Author |
Fedorov, G.; Kardakova, A.; Gayduchenko, I.; Charayev, I.; Voronov, B.M.; Finkel, M.; Klapwijk, T.M.; Morozov, S.; Presniakov, M.; Bobrinetskiy, I.; Ibragimov, R.; Goltsman, G. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Photothermoelectric response in asymmetric carbon nanotube devices exposed to sub-terahertz radiation |
Type |
Journal Article |
|
Year |
2013 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
|
|
Volume |
103 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
18 |
Pages |
181121 (1 to 5) |
|
|
Keywords |
carbon nanotubes, CNT, THz radiation, SiO2 substrate |
|
|
Abstract |
We report on the voltage response of carbon nanotube devices to sub-terahertz (THz) radiation. The devices contain carbon nanotubes (CNTs), which are over their length partially suspended and partially Van der Waals bonded to a SiO2 substrate, causing a difference in thermal contact. We observe a DC voltage upon exposure to 140 GHz radiation. Based on the observed gate voltage and power dependence, at different temperatures, we argue that the observed signal is both thermal and photovoltaic. The room temperature responsivity in the microwave to THz range exceeds that of CNT based devices reported before. Authors thank Professor P. Barbara for providing the catalyst for CNT growth and Dr. N. Chumakov and V. Rylkov for stimulating discussions. The work was supported by the RFBR (Grant No. 12-02-01291-a) and by the Ministry of Education and Science of the Russian Federation (Contract No. 14.B25.31.0007). G.F. acknowledges support of the RFBR grant 12-02-01005-a. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0003-6951 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1171 |
|
Permanent link to this record |
|
|
|
|
Author |
Gayduchenko, I.; Kardakova, A.; Fedorov, G.; Voronov, B.; Finkel, M.; Jiménez, D.; Morozov, S.; Presniakov, M.; Goltsman, G. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Response of asymmetric carbon nanotube network devices to sub-terahertz and terahertz radiation |
Type |
Journal Article |
|
Year |
2015 |
Publication |
J. Appl. Phys. |
Abbreviated Journal |
J. Appl. Phys. |
|
|
Volume |
118 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
19 |
Pages |
194303 |
|
|
Keywords |
terahertz detectors, asymmetric carbon nanotubes, CNT |
|
|
Abstract |
Demand for efficient terahertz radiation detectors resulted in intensive study of the asymmetric carbon nanostructures as a possible solution for that problem. It was maintained that photothermoelectric effect under certain conditions results in strong response of such devices to terahertz radiation even at room temperature. In this work, we investigate different mechanisms underlying the response of asymmetric carbon nanotube (CNT) based devices to sub-terahertz and terahertz radiation. Our structures are formed with CNT networks instead of individual CNTs so that effects probed are more generic and not caused by peculiarities of an individual nanoscale object. We conclude that the DC voltage response observed in our structures is not only thermal in origin. So called diode-type response caused by asymmetry of the device IV characteristic turns out to be dominant at room temperature. Quantitative analysis provides further routes for the optimization of the device configuration, which may result in appearance of novel terahertz radiation detectors. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0021-8979 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1169 |
|
Permanent link to this record |
|
|
|
|
Author |
Fu, K.; Zannoni, R.; Chan, C.; Adams, S. H.; Nicholson, J.; Polizzi, E.; Yngvesson, K. S. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Terahertz detection in single wall carbon nanotubes |
Type |
Journal Article |
|
Year |
2008 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
|
|
Volume |
92 |
Issue ![sorted by Issue field, ascending order (up)](img/sort_asc.gif) |
3 |
Pages |
033105 |
|
|
Keywords |
HEB, single wall, carbon nanotube, CNT, SWNT, SWCNT, terahertz detection, THz |
|
|
Abstract |
It is reported that terahertz radiation from 0.69 to 2.54 THz has been sensitively detected in a device consisting of bundles of carbon nanotubes containing single wall metallic carbon nanotubes, quasioptically coupled through a lithographically fabricated antenna, and a silicon lens. The measured data are consistent with a bolometric detection process in the metallic tubes and the devices show promise for operation well above 4.2 K. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0003-6951 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
NEP is not shown |
Approved |
no |
|
|
Call Number |
|
Serial |
566 |
|
Permanent link to this record |