Contact problems in Jc measurements on high Tc superconductors

✍ Scribed by H. Jones; L. Cowey; D. Dew-Hughes

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 424 KB
• Volume: 29
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(89)90152-5

✦ Synopsis

It is shown that the quality of contact made to the specimen can lead to wildly erroneous values of Jc' Pulsed current techniques give more reliable Jc values, but the results can still be distorted by the presence of thermoelectric effects. Methods of making contact to these materials are evaluated.