| Issue |
Europhys. Lett.
Volume 58, Number 1, April 2002
|
|
|---|---|---|
| Page(s) | 93 - 98 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2002-00610-x | |
| Published online | 01 August 2002 | |
Umkehr effect in Hall voltage of polycrystalline bismuth
1
Laboratoire de Physique des Matériaux,
UMR 7556, Ecole des Mines Parc de Saurupt - F-54042
Nancy, France
2
Unité de Physico-Chimie et de Physique des
Matériaux Université Catholique de Louvain -
Place Croix du Sud,1 B-1348 Louvain-la-Neuve, Belgique
Received:
5
April
2001
Accepted:
18
January
2002
The Hall effect has been measured on an isotropic polycrystalline
sample, from 5
up to room temperature. It appears
that the Hall voltage exhibits a strong asymmetry under sign
reversal of magnetic field. This peculiar effect becomes more
pronounced as the temperature decreases.
It is shown that this astonishing behavior, at first glance, can
be ascribed to the “Umkehr” effect, previously predicted from a
phenomenological point of view, for the off-diagonal components of
the magnetoresistivity tensor, for 
m crystallographic
point group.
PACS: 72.15.Gd – Galvanomagnetic and other magnetotransport effects / 81.05.Bx – Metals, semimetals, and alloys / 81.20.Ev – Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
© EDP Sciences, 2002
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