Nanosegregation in Na2C60

G. Klupp, K. Kamarás, N. M. Nemes, P. Matus, D. Quintavalle, L. Kiss, É Kováts, S. Pekker, A. Jánossy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There is continuous interest in the nature of alkali metal fullerides containing C60 4- and C60 2-, because these compounds are believed to be nonmagnetic Mott-Jahn-Teller insulators. This idea could be verified in the case of A4C60, but Na 2C60 is more controversial. By comparing the results of infrared spectroscopy and X-ray diffraction, we found that Na2C 60 is segregated into 3-10 nm large regions. The two main phases of the material are insulating C60 and metallic Na3C 60. We found by neutron scattering that the diffusion of sodium ions becomes faster on heating. Above 470 K Na2C60 is homogeneous and we show IR spectroscopic evidence of a Jahn-Teller distorted C60 2- anion.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages17-20
Number of pages4
Volume786
DOIs
Publication statusPublished - Sep 27 2005
EventELECTRONIC PROPERTIES OF NOVEL NANOSTRUCTURES: XIX International Winterschool/Euroconference on Electronic Properties of Novel Materials - Kirchberg, Tirol, Austria
Duration: Mar 12 2005Mar 19 2005

Other

OtherELECTRONIC PROPERTIES OF NOVEL NANOSTRUCTURES: XIX International Winterschool/Euroconference on Electronic Properties of Novel Materials
CountryAustria
CityKirchberg, Tirol
Period3/12/053/19/05

Fingerprint

fullerides
insulation
alkali metals
neutron scattering
infrared spectroscopy
sodium
insulators
anions
heating
diffraction
ions
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Klupp, G., Kamarás, K., Nemes, N. M., Matus, P., Quintavalle, D., Kiss, L., ... Jánossy, A. (2005). Nanosegregation in Na2C60 In AIP Conference Proceedings (Vol. 786, pp. 17-20) https://doi.org/10.1063/1.2103811

Nanosegregation in Na2C60 . / Klupp, G.; Kamarás, K.; Nemes, N. M.; Matus, P.; Quintavalle, D.; Kiss, L.; Kováts, É; Pekker, S.; Jánossy, A.

AIP Conference Proceedings. Vol. 786 2005. p. 17-20.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Klupp, G, Kamarás, K, Nemes, NM, Matus, P, Quintavalle, D, Kiss, L, Kováts, É, Pekker, S & Jánossy, A 2005, Nanosegregation in Na2C60 in AIP Conference Proceedings. vol. 786, pp. 17-20, ELECTRONIC PROPERTIES OF NOVEL NANOSTRUCTURES: XIX International Winterschool/Euroconference on Electronic Properties of Novel Materials, Kirchberg, Tirol, Austria, 3/12/05. https://doi.org/10.1063/1.2103811
Klupp G, Kamarás K, Nemes NM, Matus P, Quintavalle D, Kiss L et al. Nanosegregation in Na2C60 In AIP Conference Proceedings. Vol. 786. 2005. p. 17-20 https://doi.org/10.1063/1.2103811
Klupp, G. ; Kamarás, K. ; Nemes, N. M. ; Matus, P. ; Quintavalle, D. ; Kiss, L. ; Kováts, É ; Pekker, S. ; Jánossy, A. / Nanosegregation in Na2C60 AIP Conference Proceedings. Vol. 786 2005. pp. 17-20
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