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초록
We have investigated the effect of Ca substitution for Lu on the structural and the superconducting properties of (Lu1-xCax)Ba2Cu3Oz(0 <= x <= 0.5) samples. X-ray diffraction data reveal that, contrary to the Ca-free sample, the phase purity of the samples increases as the Ca content increases above x = 0.1 and that the solubility limit of Ca is about x = 0.2. Electrical resistivity and thermoelectric power measurements indicate that the suppressions of T-c by Ca substitution within the solubility limit are due to an increase in the concentration of mobile holes.
키워드
(Lu1-xCax)Ba2Cu3Oz; solubility limit; hole concentration; THERMOELECTRIC-POWER; MAGNETIC-PROPERTIES; 0.50-GREATER-THAN-OR-EQUAL-TO-X-GREATER-THAN-OR-EQUAL-TO-0.00; Y1-XCAXBA2CU3O7-DELTA; YBA2CU3O7-DELTA; CALCIUM
- 제목
- Effect of Ca substitution on the superconducting properties of LuBa2Cu3Oz
- 저자
- Lee, H. K.; Kim, Y. H.
- 발행일
- 2006-05
- 유형
- Article; Proceedings Paper
- 권
- 48
- 호
- 5
- 페이지
- 1151 ~ 1154