Crystal size improvement of Bi-based superconducting whiskers under stress-controlled condition
Abstract
Using stress-controlled amorphous precursors, we have successfully grown Bi2Sr2Can-1CunOy (Bi-based) high-transition temperature superconducting whiskers with large crystal-size. Especially, under a high compressive stress attained by 1 GPa pelletizing, the crystal size of a whisker was significantly enhanced up to 9.5 mm length (growth period: 96 h) which is 2.4 times larger than that of the conventional amorphous-precursors method when using similar growth conditions and substrate compositions. In addition, by using the stress-controlled precursors, the number of the obtained Bi-based whiskers were also increased by a factor of 1.8.
- Publication:
-
Journal of Crystal Growth
- Pub Date:
- July 2020
- DOI:
- 10.1016/j.jcrysgro.2020.125669
- arXiv:
- arXiv:1911.00224
- Bibcode:
- 2020JCrGr.54125669Y
- Keywords:
-
- A1. Growth models;
- A1. Stresses;
- A2. Single crystal growth;
- B2. Superconducting materials;
- Condensed Matter - Superconductivity;
- Condensed Matter - Materials Science
- E-Print:
- doi:10.1016/j.jcrysgro.2020.125669