SINGLET-GROUND-STATE PARAMAGNETIC CENTERS IN CUO2 LAYERS AS SEEN FROM TM-169 NMR IN TMBA2CU3O6+X SUPERCONDUCTORS

被引：15

作者：

BAKHAREV, ON ^{[1
]}

WITTEVEEN, J ^{[1
]}

BROM, HB ^{[1
]}

KRJUKOV, EV ^{[1
]}

MARVIN, OB ^{[1
]}

TEPLOV, MA ^{[1
]}

机构：

[1] LEIDEN UNIV,2300 RA LEIDEN,NETHERLANDS

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.51.693

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Tm169 nuclear spin-lattice relaxation in oxygen-deficient TmBa2Cu3O6+x compounds, as quenched and room-temperature annealed, has been measured at low temperatures. The results are consistent with the existence of paramagnetic centers in the CuO2 double layer, which have a nonmagnetic (singlet) ground state separated from an excited magnetic state by an energy gap of the order of 1 K. © 1995 The American Physical Society.

引用

页码：693 / 696

页数：4

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