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THALLIUM NMR SPIN ECHO INVESTIGATIONS IN MULTIPHASE TL-BA-CA-CUO SUPERCONDUCTORS.

Author(s) : TOMPA K.

Type of article: Article

Summary

MULTIPHASE OXIDE SUPERCONDUCTORS OF NOMINAL COMPOSITIONS TL(2)BACA(2)CU(3)O(X) HAVE BEEN SYNTHESIZED AND CHARACTERIZED BY RESISTIVITY AND MAGNETIC SUSCEPTIBILITY MEASUREMENTS. NMR SPIN ECHOES OF 2 THALLIUM ISOTOPES HAVE BEEN DETECTED AND THE LINE SHIFTS, THE SPIN-LATTICE AND SPIN-SPIN RELAXATION TIMES HAVE BEEN MEASURED AT ROOM TEMPERATURE. THE TEMPERATURE DEPENDENCE OF THE SPIN-LATTICE RELAXATION RATE IS ALSO REPORTED. THE RESULTS SUGGEST THAT THALLIUM HAS A SMALL ELECTRO-NIC DENSITY OF STATES AT THE FERMI LEVEL IN THE OXIDE SUPERCONDUCTORS.

Details

  • Original title: THALLIUM NMR SPIN ECHO INVESTIGATIONS IN MULTIPHASE TL-BA-CA-CUO SUPERCONDUCTORS.
  • Record ID : 1990-0047
  • Languages: English
  • Source: Physica, C - vol. 152 - n. 5
  • Publication date: 1988/07
  • Document available for consultation in the library of the IIR headquarters only.

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