205Tl NMR spin echo investigations in multiphase Tl-Ba-Ca-Cu oxide superconductors

K. Tompa; I. Bakonyi; P. Bánki; I. Furó; S. Pekker; J. Vandlik; G. Oszlányi; L. Mihály

doi:10.1016/0921-4534(88)90057-3

²⁰⁵Tl NMR spin echo investigations in multiphase Tl-Ba-Ca-Cu oxide superconductors

K. Tompa
, I. Bakonyi
, P. Bánki
, I. Furó
, S. Pekker
, J. Vandlik
, G. Oszlányi
, L. Mihály

Physics and Astronomy

Wigner Research Centre for Physics

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Multiphase oxide superconductors of nominal compositions Tl₂BaCa₂Cu₃O_x have been synthesized and characterized by resistivity and magnetic susceptibility measurements. NMR spin echoes of both thallium isotopes (²⁰³Tl and ²⁰⁵Tl) have been detected and the line shifts, the spin-lattice and spin-spin relaxation times have been measured at room temperature for the more abundant ²⁰⁵Tl nuclei. The temperature dependence of the spin-lattice relaxation rate is also reported. The results suggest that, similarly to the behavior of Y in YBa₂Cu₃O₇ oxides, Tl has a small electronic density of states at the Fermi level in the Tl-Ba-Ca-Cu oxide superconductors.

Original language	English
Pages (from-to)	486-490
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	152
Issue number	5
DOIs	https://doi.org/10.1016/0921-4534(88)90057-3
State	Published - Jul 1 1988

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title = "205Tl NMR spin echo investigations in multiphase Tl-Ba-Ca-Cu oxide superconductors",

abstract = "Multiphase oxide superconductors of nominal compositions Tl2BaCa2Cu3Ox have been synthesized and characterized by resistivity and magnetic susceptibility measurements. NMR spin echoes of both thallium isotopes (203Tl and 205Tl) have been detected and the line shifts, the spin-lattice and spin-spin relaxation times have been measured at room temperature for the more abundant 205Tl nuclei. The temperature dependence of the spin-lattice relaxation rate is also reported. The results suggest that, similarly to the behavior of Y in YBa2Cu3O7 oxides, Tl has a small electronic density of states at the Fermi level in the Tl-Ba-Ca-Cu oxide superconductors.",

author = "K. Tompa and I. Bakonyi and P. B{\'a}nki and I. Fur{\'o} and S. Pekker and J. Vandlik and G. Oszl{\'a}nyi and L. Mih{\'a}ly",

year = "1988",

month = jul,

day = "1",

doi = "10.1016/0921-4534(88)90057-3",

language = "English",

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journal = "Physica C: Superconductivity and its applications",

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TY - JOUR

T1 - 205Tl NMR spin echo investigations in multiphase Tl-Ba-Ca-Cu oxide superconductors

AU - Tompa, K.

AU - Bakonyi, I.

AU - Bánki, P.

AU - Furó, I.

AU - Pekker, S.

AU - Vandlik, J.

AU - Oszlányi, G.

AU - Mihály, L.

PY - 1988/7/1

Y1 - 1988/7/1

N2 - Multiphase oxide superconductors of nominal compositions Tl2BaCa2Cu3Ox have been synthesized and characterized by resistivity and magnetic susceptibility measurements. NMR spin echoes of both thallium isotopes (203Tl and 205Tl) have been detected and the line shifts, the spin-lattice and spin-spin relaxation times have been measured at room temperature for the more abundant 205Tl nuclei. The temperature dependence of the spin-lattice relaxation rate is also reported. The results suggest that, similarly to the behavior of Y in YBa2Cu3O7 oxides, Tl has a small electronic density of states at the Fermi level in the Tl-Ba-Ca-Cu oxide superconductors.

AB - Multiphase oxide superconductors of nominal compositions Tl2BaCa2Cu3Ox have been synthesized and characterized by resistivity and magnetic susceptibility measurements. NMR spin echoes of both thallium isotopes (203Tl and 205Tl) have been detected and the line shifts, the spin-lattice and spin-spin relaxation times have been measured at room temperature for the more abundant 205Tl nuclei. The temperature dependence of the spin-lattice relaxation rate is also reported. The results suggest that, similarly to the behavior of Y in YBa2Cu3O7 oxides, Tl has a small electronic density of states at the Fermi level in the Tl-Ba-Ca-Cu oxide superconductors.

UR - https://www.scopus.com/pages/publications/0024051046

U2 - 10.1016/0921-4534(88)90057-3

DO - 10.1016/0921-4534(88)90057-3

M3 - Article

AN - SCOPUS:0024051046

SN - 0921-4534

VL - 152

SP - 486

EP - 490

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 5

ER -

²⁰⁵Tl NMR spin echo investigations in multiphase Tl-Ba-Ca-Cu oxide superconductors

Abstract

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