Abstract
Although the frequency dependent conductivity of ion-containing glasses often displays scale invariant power law dispersion at high temperatures, the exponent increases to unity at lower temperatures. We report measurements of the conductivity of a series of alkali metaphosphate glasses including a mixed alkali composition and demonstrate that this temperature dependence results from the superposition of two power law dispersions originating from separate mechanism, and does not indicate any intrinsic change in scaling of the process which dominates at high temperatures.
| Original language | English |
|---|---|
| Pages (from-to) | 5068-5071 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 74 |
| Issue number | 25 |
| DOIs | |
| State | Published - 1995 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Two contributions to the ac conductivity of alkali oxide glasses. / Sidebottom, David L.; Green, P. F.; Brow, R. K.
In: Physical Review Letters, Vol. 74, No. 25, 1995, p. 5068-5071.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Two contributions to the ac conductivity of alkali oxide glasses
AU - Sidebottom, David L.
AU - Green, P. F.
AU - Brow, R. K.
PY - 1995
Y1 - 1995
N2 - Although the frequency dependent conductivity of ion-containing glasses often displays scale invariant power law dispersion at high temperatures, the exponent increases to unity at lower temperatures. We report measurements of the conductivity of a series of alkali metaphosphate glasses including a mixed alkali composition and demonstrate that this temperature dependence results from the superposition of two power law dispersions originating from separate mechanism, and does not indicate any intrinsic change in scaling of the process which dominates at high temperatures.
AB - Although the frequency dependent conductivity of ion-containing glasses often displays scale invariant power law dispersion at high temperatures, the exponent increases to unity at lower temperatures. We report measurements of the conductivity of a series of alkali metaphosphate glasses including a mixed alkali composition and demonstrate that this temperature dependence results from the superposition of two power law dispersions originating from separate mechanism, and does not indicate any intrinsic change in scaling of the process which dominates at high temperatures.
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U2 - 10.1103/PhysRevLett.74.5068
DO - 10.1103/PhysRevLett.74.5068
M3 - Article
AN - SCOPUS:0001644740
VL - 74
SP - 5068
EP - 5071
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 25
ER -