Автор |
O -M Nes |
Автор |
M Castro |
Автор |
M Slaski |
Автор |
T Laegreid |
Автор |
K Fossheim |
Автор |
N Motohira |
Автор |
K Kitazawa |
Дата выпуска |
1991-01-01 |
dc.description |
The authors have measured the in-plane Young's modulus sound velocity v<sub>e</sub>(T) at kHz frequencies and the specific heat C<sub>p</sub>(T) of Bi<sub>2</sub>Sr<sub>2</sub>Ca<sub>1</sub>Cu<sub>2</sub>O<sub>y</sub> single crystals with T<sub>c</sub>=93.2 K. In the region of T<sub>c</sub> a softening is observed in v<sub>e</sub>, corresponding to a discontinuity in dlnv<sub>e</sub>/dT of 6.2 ppm/K and an indication of a change of Delta v<sub>e</sub>/v<sub>e</sub> of the order of 10 ppm. From Delta C<sub>p</sub>/T<sub>c</sub> approximately=16 mJ/(molK<sup>2</sup>) they find mod delta T<sub>c</sub>/ delta sigma <sub>i</sub> mod approximately=0.1 K/kbar and - delta <sup>2</sup>T<sub>c</sub>/ delta sigma <sub>1</sub><sup>2</sup> approximately=10<sup>-3</sup>-10<sup>-2</sup> K/kbar<sup>2</sup> (i=1,2). |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Anomalies in elastic and thermal properties associated with the superconducting transition of single crystal Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>y</sub> |
Тип |
paper |
DOI |
10.1088/0953-2048/4/1S/115 |
Electronic ISSN |
1361-6668 |
Print ISSN |
0953-2048 |
Журнал |
Superconductor Science and Technology |
Том |
4 |
Первая страница |
S388 |
Последняя страница |
S390 |
Аффилиация |
O -M Nes; Norwegian Inst. of Technol., Trondheim, Norway |
Аффилиация |
M Castro; Norwegian Inst. of Technol., Trondheim, Norway |
Аффилиация |
M Slaski; Norwegian Inst. of Technol., Trondheim, Norway |
Аффилиация |
T Laegreid; Norwegian Inst. of Technol., Trondheim, Norway |
Аффилиация |
K Fossheim; Norwegian Inst. of Technol., Trondheim, Norway |
Аффилиация |
N Motohira; Norwegian Inst. of Technol., Trondheim, Norway |
Аффилиация |
K Kitazawa; Norwegian Inst. of Technol., Trondheim, Norway |
Выпуск |
1S |