Abstract
The Hall coefficient RH is seen to rise rapidly with decreasing temperature in the hopping regime of the insulating Al70Pd22.5Re7.5 quasicrystal with a resistivity ratio r = ρ(4.2 K)ρ(300 K) equal to 24 and to exhibit the variable-range hopping behavior i.e. RH = R0T0HT1/4. The obtained value of T0H is much larger than the Mott's temperature T0 extracted from the conductivity in the hopping regime. This is contrary to the prediction of Gruenewald et al. [Solid State Commum. 64 (1987) 11] for disordered systems. No existing theories can account for this anomalous effect.
| Original language | English |
|---|---|
| Pages (from-to) | 352-354 |
| Number of pages | 3 |
| Journal | Journal of Alloys and Compounds |
| Volume | 342 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2002 Aug 14 |
| Event | QC2001 - Sendai, Japan Duration: 2001 Sep 24 → 2001 Sep 28 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
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Anomalous Hall effect in the hopping regime of the insulating Al70Pd22.5Re7.5 quasicrystal. / Chen, Kun Hsien; Su, Tzung I.; Fang, Hung Cheng; Lee, Shih Chen; Lin, Shui Tien.
In: Journal of Alloys and Compounds, Vol. 342, No. 1-2, 14.08.2002, p. 352-354.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Anomalous Hall effect in the hopping regime of the insulating Al70Pd22.5Re7.5 quasicrystal
AU - Chen, Kun Hsien
AU - Su, Tzung I.
AU - Fang, Hung Cheng
AU - Lee, Shih Chen
AU - Lin, Shui Tien
PY - 2002/8/14
Y1 - 2002/8/14
N2 - The Hall coefficient RH is seen to rise rapidly with decreasing temperature in the hopping regime of the insulating Al70Pd22.5Re7.5 quasicrystal with a resistivity ratio r = ρ(4.2 K)ρ(300 K) equal to 24 and to exhibit the variable-range hopping behavior i.e. RH = R0T0HT1/4. The obtained value of T0H is much larger than the Mott's temperature T0 extracted from the conductivity in the hopping regime. This is contrary to the prediction of Gruenewald et al. [Solid State Commum. 64 (1987) 11] for disordered systems. No existing theories can account for this anomalous effect.
AB - The Hall coefficient RH is seen to rise rapidly with decreasing temperature in the hopping regime of the insulating Al70Pd22.5Re7.5 quasicrystal with a resistivity ratio r = ρ(4.2 K)ρ(300 K) equal to 24 and to exhibit the variable-range hopping behavior i.e. RH = R0T0HT1/4. The obtained value of T0H is much larger than the Mott's temperature T0 extracted from the conductivity in the hopping regime. This is contrary to the prediction of Gruenewald et al. [Solid State Commum. 64 (1987) 11] for disordered systems. No existing theories can account for this anomalous effect.
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U2 - 10.1016/S0925-8388(02)00252-9
DO - 10.1016/S0925-8388(02)00252-9
M3 - Conference article
AN - SCOPUS:0037077635
VL - 342
SP - 352
EP - 354
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -