TY - JOUR
T1 - Magnetoconductivity of icosahedral and amorphous Al-Pd-Re films - a comparison
AU - Haberkern, R.
AU - Rosenbaum, R.
AU - Bekar, H.
AU - Pilosof, M.
AU - Milner, A.
AU - Gerber, A.
AU - Häussler, P.
N1 - Funding Information:
We greatly thank the Tel Aviv University Internal Research Fund and DFG for its financial support.
PY - 2000/12/15
Y1 - 2000/12/15
N2 - The magnetoconductivity of quasicrystals is often discussed in the frame of quantum corrections, namely weak (anti-) localization and electron-electron interaction. A premise for both effects is a strong elastic scattering of conduction electrons. Amorphous and icosahedral phases are discussed as Hume-Rothery alloys with an electronically induced structural peak at the diameter of the Fermi sphere. Therefore, both should exhibit quantum corrections. The preparation of quasicrystalline films via the amorphous route offers the possibility to compare the magnetoconductivity on samples of identical composition but different structure. We report on magnetoconductivity measurements at temperatures between 0.2 and 22 K and for magnetic fields up to 16 T. With the exception of the electronic diffusion constant, amorphous as well as icosahedral Al-Pd-Re films can be described by nearly the same set of parameters if the samples are well on the metallic side of the metal-insulator transition.
AB - The magnetoconductivity of quasicrystals is often discussed in the frame of quantum corrections, namely weak (anti-) localization and electron-electron interaction. A premise for both effects is a strong elastic scattering of conduction electrons. Amorphous and icosahedral phases are discussed as Hume-Rothery alloys with an electronically induced structural peak at the diameter of the Fermi sphere. Therefore, both should exhibit quantum corrections. The preparation of quasicrystalline films via the amorphous route offers the possibility to compare the magnetoconductivity on samples of identical composition but different structure. We report on magnetoconductivity measurements at temperatures between 0.2 and 22 K and for magnetic fields up to 16 T. With the exception of the electronic diffusion constant, amorphous as well as icosahedral Al-Pd-Re films can be described by nearly the same set of parameters if the samples are well on the metallic side of the metal-insulator transition.
UR - http://www.scopus.com/inward/record.url?scp=0034497325&partnerID=8YFLogxK
U2 - 10.1016/S0921-5093(00)01101-1
DO - 10.1016/S0921-5093(00)01101-1
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AN - SCOPUS:0034497325
SN - 0921-5093
VL - 294-296
SP - 613
EP - 616
JO - Materials Science and Engineering: A
JF - Materials Science and Engineering: A
ER -