NMR Studies of Singlet-Ground-State Rare-Earth Ions in High-T-c Superconductors

被引：12

作者：

Bakharev, O. N. ^{[1
]}

Dooglav, A. V. ^{[1
]}

Egorov, A. V. ^{[1
,2
]}

Luetgemeier, H. ^{[2
]}

Rodionova, M. P. ^{[1
]}

Teplov, M. A. ^{[1
]}

Volodin, A. G. ^{[1
]}

Wagener, D. ^{[3
]}

机构：

[1] Kazan State Univ, Kazan 420008, Russia

[2] Forschungszentrum Julich, Julich, Germany

[3] Univ Bonn, Inst Strahlen & Kernphys, D-5300 Bonn, Germany

来源：

APPLIED MAGNETIC RESONANCE | 1992年 / 3卷 / 3-4期

关键词：

D O I：

10.1007/BF03166285

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Many of presently known high-T-c superconductors contain rare-earth (RE) ions with an even number of electrons in an unfilled 4f-shell (Pr3+, Tb3+, Ho3+, Tm3+). If the ground state of 4f-electrons is non-degenerate and separated from excited states by high enough energy intervals, one can observe the so-called "enhanced NMR" of RE nuclei at low temperatures. In the present paper some aspects of the enhanced NMR are analyzed in applications to the crystal and electron structure of high-T-c superconductors.

引用

页码：613 / 640

页数：28

共 55 条

[11]

BAKHAREV ON, 1990, JETP LETT+, V52, P179

[12]

BAKHAREV ON, 1990, JETP LETT+, V52, P405

[13] ELECTRONIC SHIELDING BY CLOSED SHELLS IN SALTS OF THULIUM [J].

BARNES, RG ;

POINDEXTER, JM ;

MOSSBAUER, RL ;

KANKELEIT, E .

PHYSICAL REVIEW A-GENERAL PHYSICS, 1964, 136 (1A) :A175-&

[14] ENERGY-LEVELS IN PRVO4 [J].

BLEANEY, B ;

HARLEY, RT ;

RYAN, JF ;

WELLS, MR ;

WILTSHIRE, MCK .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1978, 11 (14) :3059-3069

[15] OXYGEN EVOLUTION FROM ABA2CU3O7-DELTA HIGH-TC SUPERCONDUCTORS WITH A = YB, ER, Y, GD, EU, SM, ND AND LA [J].

BUCHGEISTER, M ;

HERZOG, P ;

HOSSEINI, SM ;

KOPITZKI, K ;

WAGENER, D .

PHYSICA C, 1991, 178 (1-3) :105-109

[16]

Egorov A.V., 1979, SOV PHYS JETP, V50, P1145

[17] THEORETICAL INVESTIGATION OF SOME MAGNETIC AND SPECTROSCOPIC PROPERTIES OF RARE-EARTH IONS [J].

FREEMAN, AJ ;

WATSON, RE .

PHYSICAL REVIEW, 1962, 127 (06) :2058-&

[18] NEUTRON SPECTROSCOPIC DETERMINATION OF THE CRYSTALLINE ELECTRIC-FIELD IN HOBA2CU3O7-DELTA [J].

FURRER, A ;

BRUESCH, P ;

UNTERNAHRER, P .

PHYSICAL REVIEW B, 1988, 38 (07) :4616-4623

[19]

Furrer A., 1977, CRYSTAL FIELD EFFECT, P318

[20]

Furrer A., 1991, P 6 INT SCH NEUTR PH, V2, P278

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