Local magnetism and crystal fields of Pr in PrBa2Cu3O7 studied by Pr-141 NMR

被引：34

作者：

Nehrke, K

Pieper, MW

机构：

[1] Institut für Angewandte Physik, Universität Hamburg, Hamburg, D-20355

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.76.1936

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first study of the Pr-141 nuclear resonance in PrBa2Cu3O7. In strong contrast to the current understanding of PrBa2CU3O7, We observe a small ordered Pr moment at low temperatures (0.017 mu(B)), oriented perpendicular to the c axis, and a temperature and field independent Van Vleck susceptibility below 10 K. We find a Gamma(1) ground state symmetry and a larger splitting of the quasitriplet than observed in inelastic neutron scattering. We propose that the origin of the (1/2, 1/2, 0) Bragg peak in neutron diffraction is a ferromagnetic coupling between the CuO2 planes of a bilayer induced by Pr.

引用

页码：1936 / 1939

页数：4

共 19 条

[1]

Bakharev O. N., 1992, Soviet Physics - JETP, V74, P370

[2] UNUSUAL ELECTRONIC-STRUCTURE OF PRBA2CU3O7 [J].

FEHRENBACHER, R ;

RICE, TM .

PHYSICAL REVIEW LETTERS, 1993, 70 (22) :3471-3474

[3] EVIDENCE AGAINST HOLE FILLING BY PR IN YBA2CU3O7 [J].

FINK, J ;

NUCKER, N ;

ROMBERG, H ;

ALEXANDER, M ;

MAPLE, MB ;

NEUMEIER, JJ ;

ALLEN, JW .

PHYSICAL REVIEW B, 1990, 42 (07) :4823-4826

[4] VALENCE OF PRASEODYMIUM IN PRXY1-XBA2CU3O7-DELTA - INELASTIC-NEUTRON-SCATTERING, SPECIFIC-HEAT, AND SUSCEPTIBILITY STUDY [J].

HILSCHER, G ;

HOLLANDMORITZ, E ;

HOLUBAR, T ;

JOSTARNDT, HD ;

NEKVASIL, V ;

SCHAUDY, G ;

WALTER, U ;

FILLION, G .

PHYSICAL REVIEW B, 1994, 49 (01) :535-550

[5] MAGNETIC CORRELATIONS IN PR1-XYXBA2CU3O7 STUDIED BY MOSSBAUER-SPECTROSCOPY ON SUBSTITUTED YB-170(3+) [J].

HODGES, JA ;

LEBRAS, G ;

BONVILLE, P ;

IMBERT, P ;

JEHANNO, G .

PHYSICA C, 1993, 218 (1-2) :283-294

[6]

HUTCHINGS MT, 1964, SOLID STATE PHYS, V16, P254

[7] MAGNETIC-ORDERING AND SUPERCONDUCTIVITY IN Y1-XPRXBA2CU3O7-Y [J].

KEBEDE, A ;

JEE, CS ;

SCHWEGLER, J ;

CROW, JE ;

MIHALISIN, T ;

MYER, GH ;

SALOMON, RE ;

SCHLOTTMANN, P ;

KURIC, MV ;

BLOOM, SH ;

GUERTIN, RP .

PHYSICAL REVIEW B, 1989, 40 (07) :4453-4462

[8] AN O-17 NMR-STUDY OF PRBA2CU3O(7-DELTA) [J].

KO, YH ;

KWEON, HK ;

LEE, HC ;

HUR, NH .

PHYSICA C, 1994, 224 (3-4) :357-362

[9] EXCITATION-SPECTRA OF PLANE SITE CU SPINS OF Y0.52PR0.48BA2CU3O7 (T-C-SIMILAR-OR-EQUAL-TO-20 K) [J].

KODAMA, K ;

SHAMOTO, S ;

HARASHINA, H ;

SATO, M ;

NISHI, M ;

KAKURAI, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (12) :4521-4528

[10] LONG-RANGE MAGNETIC-ORDERING IN THE HIGH-TC SUPERCONDUCTORS RBA2CU3O7-DELTA (R=ND, SM, GD, DY, AND ER) [J].

LEE, BW ;

FERREIRA, JM ;

DALICHAOUCH, Y ;

TORIKACHVILI, MS ;

YANG, KN ;

MAPLE, MB .

PHYSICAL REVIEW B, 1988, 37 (04) :2368-2371

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