Upshift of ferromagnetic-paramagnetic phase transition temperature of La0.8Sr0.2Mn1-xRuxO3 probed by electron spin resonance

被引:11
作者
Hassini, A
Gervais, M
Roger, S
Simon, P
Lecomte, J
Raimboux, N
Gervais, F
机构
[1] Univ Tours, Fac Sci & Tech, Lab Electrodynam Adv Mat, CNRS,LRC CEA, F-37200 Tours, France
[2] CNRS, Ctr Rech Mat Haute Temp, ID, F-45071 Orleans 02, France
关键词
ESR; manganites; ruthenium; paramagnetic-ferromagnetic transition;
D O I
10.1016/S1293-2558(02)01354-7
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The effect of ruthenium doping upon the temperature of the ferromagnetic-to-paramagnetic (,FM-PM) transition in a series of La0.8Sr0.2Mn1-xRuxO3 (0 < x < 0.2) has been studied by electron spin resonance (ESR). The onset of the FM-PM transition has been determined from the variation of the effective g factor with temperature. TC was shown to increase from 310 K for x =0 up to a maximum value at 352 K for x = 0.15. (C) 2002 Editions scientifiques et Medicales Elsevier SAS. All rights reserved.
引用
收藏
页码:907 / 910
页数:4
相关论文
共 24 条
[1]  
ANANE A, 1997, J MAGN MAGN MATER, P165
[2]  
[Anonymous], ACTA CRYSTALLOGR A
[3]   Effect of Zn substitution on para- to ferromagnetic transition temperature in La0.67Ca0.33Mn1-xZnxO3 colossal magnetoresistance materials [J].
Awana, VPS ;
Schmitt, E ;
Gmelin, E ;
Gupta, A ;
Sedky, A ;
Narlikar, AV ;
de Lima, OF ;
Cardoso, CA ;
Malik, SK ;
Yelon, WB .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :5034-5036
[4]  
BISSEY JC, 2001, P 16 C OHD LE MANS 2
[5]   Electron paramagnetic resonance of cerium and alkali-doped manganites: a tool for fast characterization within a combinatorial chemistry approach [J].
Gervais, F ;
Lecomte, J ;
Cotte, M ;
Schoenstein, F ;
Gervais, M ;
Maignan, A ;
Simon, P .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2000, 77 (01) :11-14
[6]   Transition-element doping effects in La0.7Ca0.3MnO3 [J].
Ghosh, K ;
Ogale, SB ;
Ramesh, R ;
Greene, RL ;
Venkatesan, T ;
Gapchup, KM ;
Bathe, R ;
Patil, SI .
PHYSICAL REVIEW B, 1999, 59 (01) :533-537
[7]   Role of stoichiometry and structure in colossal magnetoresistive La1-xSrxMn1-yRuyO3+δ [J].
Krishnan, KM ;
Ju, HL .
PHYSICAL REVIEW B, 1999, 60 (21) :14793-14803
[8]   Enhancement of Curie temperature and magnetoresistance in the perovskites La2/3Ca1/3Mn1-xSixO3 [J].
Li, RW ;
Wang, ZH ;
Sun, JR ;
Chen, X ;
Shen, BG .
CHINESE PHYSICS LETTERS, 2000, 17 (11) :832-834
[9]  
LIDE E, 2000, PHYS REV B, V63, DOI ARTN 024424
[10]   Effect of Ti dopant on the carrier density collapse in colossal magnetoresistance material La0.7Ca0.3Mn1-yTiyO3 [J].
Liu, XM ;
Xu, XJ ;
Zhang, YH .
PHYSICAL REVIEW B, 2000, 62 (22) :15112-15119