Study of the Ru sublattice magnetic structure in the magnetic superconductor RuSr2GdCu2O8

被引：8
作者：
Han, ZH [1 ]
Budnick, JI
Hines, WA
Klamut, PW
Maxwell, M
Dabrowski, B
机构：
[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA
[2] Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA
[3] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA
[4] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[5] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 299卷 / 02期
基金：
美国国家科学基金会;
关键词：
magnetic structure; type-I antiferromagnet; magnetic superconductor; NMR;
D O I：
10.1016/j.jmmm.2005.04.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
in order to investigate the Ru sublattice magnetic structure, I study of the field dependence of the Ru-99.101 nuclear magnetic resonance (NMR) has been carried out on the magnetic superconductor RuSr2GdCu2O8. it is found that the Ru-99,Ru-101 NMR signal intensity increases significantly with applied magnetic field LIP to approximate to 3 kOe, beyond which, it progressively decreases. In addition, a shift of the NMR peaks to lower frequency is observed to begin at approximate to 1.3 kOe. These behaviors are shown to be accompanied by a field-induced Ru moment spin-flop in the ab planes, and are understood in terms of a previously proposed type-I antiferromagnetic ordering for the Ru sublattice. Based on this model, the inter-plane antiferromagnetic exchange coupling is determined to be approximate to 1.8 kOe along with a reversible in-plane spin-flop which is characterized by a field 0.6 kOe. (c) 2005 Elsevier B.V. All rights reserved.
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收藏
页码：338 / 347
页数：10
相关论文
共 27 条
[1]   First order nucleation of charge ordered domains in La0.5Ca0.5MnO3 detected by 139La and 55Mn NMR [J].
Allodi, G ;
De Renzi, R ;
Licci, F ;
Pieper, MW .
PHYSICAL REVIEW LETTERS, 1998, 81 (21) :4736-4739
[2]   RUTHENIUM-BASED LAYERED CUPRATES RUSR(2)LNCU(2)O(8) AND RUSR2(LN(1+X) CE-1-X) CU2O10 (LN=SM, EU AND GD) [J].
BAUERNFEIND, L ;
WIDDER, W ;
BRAUN, HF .
PHYSICA C, 1995, 254 (1-2) :151-158
[3]   Coexistence of ferromagnetism and superconductivity in the hybrid ruthenate-cuprate compound RuSr2GdCu2O8 studied by muon spin rotation and dc magnetization [J].
Bernhard, C ;
Tallon, JL ;
Niedermayer, C ;
Blasius, T ;
Golnik, A ;
Brücher, E ;
Kremer, RK ;
Noakes, DR ;
Stronach, CE ;
Ansaldo, EJ .
PHYSICAL REVIEW B, 1999, 59 (21) :14099-14107
[4]   Evidence for a bulk Meissner state in the ferromagnetic superconductor RuSr2GdCu2O8 from dc magnetization [J].
Bernhard, C ;
Tallon, JL ;
Brücher, E ;
Kremer, RK .
PHYSICAL REVIEW B, 2000, 61 (22) :14960-14963
[5]   Ferromagnetic correlations and mixed Ru valence in the magnetic superconductor RuSr2(Eu, Gd)Cu2O8 -: art. no. 054442 [J].
Butera, A ;
Fainstein, A ;
Winkler, E ;
Tallon, J .
PHYSICAL REVIEW B, 2001, 63 (05)
[6]   Magnetic interactions and magnon gap in the ferromagnetic superconductor RuSr2GdCu2O8 [J].
Fainstein, A ;
Winkler, E ;
Butera, A ;
Tallon, JL .
PHYSICAL REVIEW B, 1999, 60 (18) :12597-12600
[7]  
GUINARAES AP, 1998, MAGNETISM MAGNETIC R, P238
[8]   Magnetic ordering in the superconducting weak ferromagnets RuSr2GdCu2O8 and RuSr2EuCu2O8 -: art. no. 054440 [J].
Jorgensen, JD ;
Chmaissem, O ;
Shaked, H ;
Short, S ;
Klamut, PW ;
Dabrowski, B ;
Tallon, JL .
PHYSICAL REVIEW B, 2001, 63 (05)
[9]   High-pressure synthesis and physical properties of ruthenate-cuprates RuSr2LnCu2O8 (Ln = Y, Dy, Ho, Er) [J].
Kawashima, T ;
Takayama-Muromachi, E .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 398 (3-4) :85-94
[10]   On the effect of heterovalent substitutions in ruthenocuprates [J].
Klamut, PW ;
Dabrowski, B ;
Mini, SM ;
Maxwell, M ;
Mais, J ;
Felner, I ;
Asaf, U ;
Ritter, F ;
Shengelaya, A ;
Khasanov, R ;
Savic, IM ;
Keller, H ;
Wisniewski, A ;
Puzniak, R ;
Fita, IM ;
Sulkowski, C ;
Matusiak, M .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 387 (1-2) :33-39
123