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Low-temperature torsion pendulum measurements on YBCO superconductors

Author
Organization
Abstract
We report low temperature torsion pendulum measurements on two types of YBa2Cu3O7-delta superconducting samples made from different precursors. The internal friction and modulus of the samples show in some aspects different behaviour than reported in the literature so far: a broad maximum of the internal friction around room temperature and a strong reduction of the anomalies near T-c. In addition, in both samples a peak becomes apparent when the samples are cooled below a temperature around T-c. The maximum for this peak is at 145 and 200 K for the two samples (for a frequency of about 10 Hz). Possible mechanisms for the peaks are discussed; however, details of the exact mechanism for these anomalies remain rather unclear.
Keywords
TWINNING DISLOCATIONS, ANELASTIC RELAXATION MEASUREMENTS, INTERNAL-FRICTION, YBA2CU3O7-DELTA

Citation

Please use this url to cite or link to this publication:

MLA
Devos, Paul et al. “Low-temperature Torsion Pendulum Measurements on YBCO Superconductors.” JOURNAL OF ALLOYS AND COMPOUNDS 211 (1994): 276–278. Print.
APA
Devos, P., DEBATIST, R., CORNELIS, J., & SERVAES, F. (1994). Low-temperature torsion pendulum measurements on YBCO superconductors. JOURNAL OF ALLOYS AND COMPOUNDS, 211, 276–278.
Chicago author-date
Devos, Paul, R DEBATIST, J CORNELIS, and F SERVAES. 1994. “Low-temperature Torsion Pendulum Measurements on YBCO Superconductors.” Journal of Alloys and Compounds 211: 276–278.
Chicago author-date (all authors)
Devos, Paul, R DEBATIST, J CORNELIS, and F SERVAES. 1994. “Low-temperature Torsion Pendulum Measurements on YBCO Superconductors.” Journal of Alloys and Compounds 211: 276–278.
Vancouver
1.
Devos P, DEBATIST R, CORNELIS J, SERVAES F. Low-temperature torsion pendulum measurements on YBCO superconductors. JOURNAL OF ALLOYS AND COMPOUNDS. 1994;211:276–8.
IEEE
[1]
P. Devos, R. DEBATIST, J. CORNELIS, and F. SERVAES, “Low-temperature torsion pendulum measurements on YBCO superconductors,” JOURNAL OF ALLOYS AND COMPOUNDS, vol. 211, pp. 276–278, 1994.
@article{7174641,
  abstract     = {{We report low temperature torsion pendulum measurements on two types of YBa2Cu3O7-delta superconducting samples made from different precursors. The internal friction and modulus of the samples show in some aspects different behaviour than reported in the literature so far: a broad maximum of the internal friction around room temperature and a strong reduction of the anomalies near T-c. In addition, in both samples a peak becomes apparent when the samples are cooled below a temperature around T-c. The maximum for this peak is at 145 and 200 K for the two samples (for a frequency of about 10 Hz). Possible mechanisms for the peaks are discussed; however, details of the exact mechanism for these anomalies remain rather unclear.}},
  author       = {{Devos, Paul and DEBATIST, R and CORNELIS, J and SERVAES, F}},
  issn         = {{0925-8388}},
  journal      = {{JOURNAL OF ALLOYS AND COMPOUNDS}},
  keywords     = {{TWINNING DISLOCATIONS,ANELASTIC RELAXATION MEASUREMENTS,INTERNAL-FRICTION,YBA2CU3O7-DELTA}},
  language     = {{eng}},
  pages        = {{276--278}},
  title        = {{Low-temperature torsion pendulum measurements on YBCO superconductors}},
  url          = {{http://dx.doi.org/10.1016/0925-8388(94)90501-0}},
  volume       = {{211}},
  year         = {{1994}},
}

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