Investigation of magnetic flux gradients in hard superconductors

Автор(и)

  • V. V. Bruk B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61164, Ukraine
  • V. V. Eremenko B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61164, Ukraine
  • N. I. Makedonskaya B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61164, Ukraine
  • Yu. A. Shabakayeva B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61164, Ukraine
  • V. A. Sirenko B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61164, Ukraine

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PACS: 75.30.Kz

Анотація

Analytical calculations of the transverse magnetostriction in a thin hard superconductor are presented in relation to the distributions of currents and fields within a superconducting specimen in a varied magnetic field. The approach is successfully tested on high-temperature superconductors. The flux distribution derived from magnetostriction measurements is in satisfactory agreement with that obtained from computer processing of magnetooptical images. The magnetic flux distribution below the irreversibility line of hard superconductors is derived from both original magnetization and magnetostriction measurements and image processing. Perfect consistency of the results is obtained for a family of high-temperature superconductors (La2-xSrxCuO4, Bi2Sr2CaCu2Ox, YBa2Cu3O7-d).

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Опубліковано

2001-04-10

Як цитувати

(1)
Bruk, V. V.; Eremenko, V. V.; Makedonskaya, N. I.; Shabakayeva, Y. A.; Sirenko, V. A. Investigation of Magnetic Flux Gradients in Hard Superconductors. Fiz. Nizk. Temp. 2001, 27, 419-424.

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