Abstract
Reversible thermal annealing of YBa2Cu3Ox single crystals in air has been studied by microwave loss measurements. Among the advantages of this contactless technique are the following: Crystals are kept in sealed capillaries throughout cycles of annealing and low-temperature measurement; features are resolved in loss versus temperature measurements that are not revealed by other techniques. Microwave loss is interpreted in terms of the Gittleman-Rosenblum model of fluxon motion in a viscous medium. Narrow temperature ranges are found for the formation of the 60- and 90-K phases. Optimal microwave response is obtained after but a few hours of annealing, indicating the importance of c-axis diffusion.
| Original language | English |
|---|---|
| Pages (from-to) | 1837-1841 |
| Number of pages | 5 |
| Journal | Physical Review B |
| Volume | 41 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Jan 1990 |
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Microwave loss and oxygen annealing in YBa2Cu3Ox single crystals. / Glarum, S. H.; Schneemeyer, Lynn; Waszczak, J. V.
In: Physical Review B, Vol. 41, No. 4, 01.01.1990, p. 1837-1841.Research output: Contribution to journal › Article
TY - JOUR
T1 - Microwave loss and oxygen annealing in YBa2Cu3Ox single crystals
AU - Glarum, S. H.
AU - Schneemeyer, Lynn
AU - Waszczak, J. V.
PY - 1990/1/1
Y1 - 1990/1/1
N2 - Reversible thermal annealing of YBa2Cu3Ox single crystals in air has been studied by microwave loss measurements. Among the advantages of this contactless technique are the following: Crystals are kept in sealed capillaries throughout cycles of annealing and low-temperature measurement; features are resolved in loss versus temperature measurements that are not revealed by other techniques. Microwave loss is interpreted in terms of the Gittleman-Rosenblum model of fluxon motion in a viscous medium. Narrow temperature ranges are found for the formation of the 60- and 90-K phases. Optimal microwave response is obtained after but a few hours of annealing, indicating the importance of c-axis diffusion.
AB - Reversible thermal annealing of YBa2Cu3Ox single crystals in air has been studied by microwave loss measurements. Among the advantages of this contactless technique are the following: Crystals are kept in sealed capillaries throughout cycles of annealing and low-temperature measurement; features are resolved in loss versus temperature measurements that are not revealed by other techniques. Microwave loss is interpreted in terms of the Gittleman-Rosenblum model of fluxon motion in a viscous medium. Narrow temperature ranges are found for the formation of the 60- and 90-K phases. Optimal microwave response is obtained after but a few hours of annealing, indicating the importance of c-axis diffusion.
UR - http://www.scopus.com/inward/record.url?scp=24244473604&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.41.1837
DO - 10.1103/PhysRevB.41.1837
M3 - Article
AN - SCOPUS:24244473604
VL - 41
SP - 1837
EP - 1841
JO - Physical Review B
JF - Physical Review B
SN - 0163-1829
IS - 4
ER -