🚀 go-pugleaf

$@!z(J WWW $@>e$G$N0FFb$O!$(J
   http://www.etl.go.jp/~harigaya/FF.html
   $@$K$"$j$^$9!%(J

  __________________________________________________________________________


$@!zBh#1#02s%U%i!<%l%s%U%)!<%i%`9V1i2q$N$*CN$i$;!z(J

$@F|;~!'#1#17n#1#3F|!JLZ!K(J $@8a8e#1;~#3#0J,!A(J
$@>l=j!'EE;R5;=QAm9g8&5f=j!&K\4[#33,!&#M#3#0#3NX9V<<(J

  __________________________________________________________________________
                                       

[Title] Electronic Properties of Single Wall Carbon Nanotubes

Professor Pierre Petit
Head of Magnetic Resonace Group,
Charles Sadron Institute, CNRS, Strasbourg, France

[Abstract] We compare the thermal variations of ESR, dc and microwave
resistivity of unoriented bulk single wall carbon nanotubes samples.
We conclude that the "metallic" (d(rho)/dT > 0) high-T behaviour is
an intrinsic property of the bulk material, and that the system
remains metallic even at low temperature where (d(rho)/dT < 0). A
long estimated mean free path implies transport predominantly along
the tube axes in the bulk material.

  __________________________________________________________________________
                                       

[About Prof. Pierre Petit] Since the end of 1991, he worked in the
field of fullerenes, first in collaboration with K. Holczer and
since 1992 in collaboration with J. E. Fischer. Their work was mainly
devoted to the electronic properties of AxC60's in relation to their
location in the very rich and complex phase diagramm of these
compounds. Their main results concern the origin of the resistivity
in A3C60 compounds in the normal state and the phase transformations
in A1C60. Opposite to what was claimed by the researchers of Bell
Labs, they have unambiguously shown that the resistivity in A3C60
originated in electron-phonon interaction. Competing with the group
of L. Forro, they were the first to put in evidence the electronic
properties of the various phases in A1C60 compounds and to show
and explain the unstability of the polymer phase. Proof of the
quality of their work in this field is the numerous invited talks
he gave and invited papers he wrote. Although much work has still
to be performed on C60's, he is focusing now his researches on
Single Wall Carbon Nanotubes, in collaboration with J. E. Fischer
and R. E. Smalley.

  __________________________________________________________________________
                                       

[$@Ld$$9g$o$;@h(J]
$@FAK\T$(J TEL: 0298-54-5437 E-mail: madoka@etl.go.jp
$@?KC+4n5WM:(J TEL: 0298-54-5151 E-mail: harigaya@etl.go.jp