Electric and magnetic properties of PMMA/manganite composites

被引：14

作者：

Artale, C. ^{[1
,2
]}

Fermepin, S. ^{[1
,2
]}

Forti, M. ^{[1
,3
]}

Latino, M. ^{[1
,3
]}

Quintero, M. ^{[1
,4
]}

Granja, L. ^{[1
,4
]}

Sacanell, J. ^{[1
,4
]}

Polla, G. ^{[1
]}

Levy, P. ^{[1
,4
]}

机构：

[1] CNEA, Ctr Atom Constituyentes, GIA, GAIyANN, RA-1650 San Martin, Prov Buenos Air, Argentina

[2] UBA, FCEN, Dept Fis, Buenos Aires, DF, Argentina

[3] CNEA, UNSAM, Inst Tecnol JA Sabato, RA-1650 San Martin, Argentina

[4] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 18期

关键词：

Metal-insulator composites; Manganites; CMR; Magnetic properties; MAGNETORESISTANCE;

D O I：

10.1016/j.physb.2009.06.081

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present the synthesis and characterization of the La2/3Sr1/3MnO3 manganite in the form of tapes using polymethyl methacrylate (PMMA) as binder. We have studied their electric and magnetic properties as a function of temperature and magnetic field. The magnetization results have been shown to be dominated by the intrinsic magnetic properties of the manganite. Resistivity measurements showed an insulating behavior in the whole range of temperatures measured, indicating that the percolation threshold of manganite grains has not been reached even for the sample with 35% of PMMA relative content. The obtained magnetoresistance is largest in the sample with 35% of PMMA relative content. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2760 / 2762

页数：3

共 11 条

[1] Enhanced field sensitivity close to percolation in magnetoresistive La2/3Sr1/3MnO3/CeO2 composites [J].

Balcells, L ;

Carrillo, AE ;

Martínez, B ;

Fontcuberta, J .

APPLIED PHYSICS LETTERS, 1999, 74 (26) :4014-4016

[2] A note on the peculiarities of producing of high-temperature super-conducting polymer-ceramic composites [J].

Davtyan, SP ;

Tonoyan, AO ;

Hayrapetyan, SM ;

Manukyan, LS .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2005, 160 (03) :306-312

[3] Magnetoresistance in manganite/alumina nanocrystalline composites [J].

Hueso, LE ;

Rivas, J ;

Rivadulla, F ;

López-Quintela, MA .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (03) :1746-1750

[4] Spin-polarized intergrain tunneling in La-2/Sr-3(1)/3MnO3 [J].

Hwang, HY ;

Cheong, SW ;

Ong, NP ;

Batlogg, B .

PHYSICAL REVIEW LETTERS, 1996, 77 (10) :2041-2044

[5] Nonvolatile magnetoresistive memory in phase separated La0.325Pr0.300Ca0.375MnO3 -: art. no. 140401 [J].

Levy, P ;

Parisi, F ;

Quintero, M ;

Granja, L ;

Curiale, J ;

Sacanell, J ;

Leyva, G ;

Polla, G ;

Freitas, RS ;

Ghivelder, L .

PHYSICAL REVIEW B, 2002, 65 (14)

[6] Controlled phase separation in La0.5Ca0.5MnO3 [J].

Levy, P ;

Parisi, F ;

Polla, G ;

Vega, D ;

Leyva, G ;

Lanza, H ;

Freitas, RS ;

Ghivelder, L .

PHYSICAL REVIEW B, 2000, 62 (10) :6437-6441

[7] Plastic forming of Al2O3 ceramic substrates [J].

Mesquita, FA ;

Morelli, MR .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 143 :232-236

[8] Enhanced magnetoresistance in sintered granular manganite/insulator systems [J].

Petrov, DK ;

Krusin-Elbaum, L ;

Sun, JZ ;

Feild, C ;

Duncombe, PR .

APPLIED PHYSICS LETTERS, 1999, 75 (07) :995-997

[9] Mechanism of electric-pulse-induced resistance switching in manganites [J].

Quintero, M. ;

Levy, P. ;

Leyva, A. G. ;

Rozenberg, M. J. .

PHYSICAL REVIEW LETTERS, 2007, 98 (11)

[10]

Shklovskii B. I., 1984, ELECT PROPERTIES DOP

← 1 2 →