結合"軌域負磁阻理論(forward interference)"與"正
磁阻波函數收縮理論(wave function shrinkage)"，我們
可以將高電阻比絕緣態的Al-Pd-Re準晶在液氦溫度磁阻數
據擬合的很好。我們並發現：（1）絕緣態的Al-Pd-Re準晶其電阻比r＝ρ(4.2K)/ρ(300K)由81至129以上在液氦溫度（1.5K～4.2K）會由Mott的可變程跳躍（VRH）傳導變
成Efors and Shklovskii VRH傳導；（2）傳導轉變的溫
度過渡區，隨著電阻比變大而變小，但傳導的轉變溫度隨電阻比增加而昇高，且兩者呈線性關係。

We are able to explain well the Magnetoresistance of Al-Pd-Re
quasicrystals(QCs) at helium temperature by means of the forward interference and the wave-function shrinkage theories. We also found : (1)there is a cross over from Mott VRH conduction to ES VRH conduction at liquid helium temperature in the Al70Pd22.5Re7.5 QCs with a resistivity ratio
r＝ρ(4.2K)/ρ(300K) ranging from 81 to 129 ; (2) the range of the cross over regime decreases with increasing the sample’s r value and the cross over temperatures are linearly dependent on the sample’s r values.

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