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The non-linear Hall effect: Comparison between theoretical predictions of the Thermodynamic Field Theory (TFT) and experimental data

par Sonnino, Giorgio
Référence Il Nuovo Cimento B Series 10, 118, 10-12, page (1155-1174)
Publication Publié, 2003-10

Article révisé par les pairs

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Résumé :

As known, when a magnetic field is applied at right angles to the direction of an electric current or a thermal gradient, galvano- and thermo-magnetic effects appear in the material. In this paper, we shall show that if we study these effects in non-linear regime, the Thermodynamic Field Theory (TFT) foresees a new interesting effect: the Non Linear Hall effect. This prediction is herein submitted to experimental verification. In this paper, we shall analyse this new effect studying materials with weak thermo-electric power coefficients. We shall show the agreement between the theoretical predictions of the TFT and experiments. Expermental curves related to the non-linear Hall effect allow to determine the order of magnitude of the constant x introduced in the TFT.