Lattice effects on the magnetic and transport properties in La1.4Sr1.6-xAxMn2O7 (A = Ca, Ba)

被引：22
作者：
Chi, EO
Kwon, YU [1 ]
Kim, JT
Hur, NH
机构：
[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea
[2] Korea Res Inst Standards & Sci, Taejon 305600, South Korea
来源：
SOLID STATE COMMUNICATIONS | 1999年 / 110卷 / 10期
关键词：
magnetically ordered materials; electronic transport; exchange and superexchange;
D O I：
10.1016/S0038-1098(99)00101-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The structural and physical properties of the Ruddlesden-Popper phases La(1.4)Sr(1.6-x)A(x)Mn(2)O(7) (A = Ca, Ba) were studied. Single phase compounds were obtained up to x = 0.4 for Ca and x = 0.3 for Ba, respectively. Their magnetic and transport behavior is largely dependent upon the size of the A cations. By comparison with the magnetic and transport properties of the parent compound La1.4Sr1.6Mn2O7, the samples substituted by Ca and Ba exhibit reduced magnetic moments and conductivity. There is also a growing spin-glass like character with substitution. These can be explained by suppressed ferromagnetic double exchange interactions that result from local distortions by the size mismatch among La, Sr, and Ca/Ba. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：569 / 574
页数：6
相关论文
共 27 条
[1]   CONSIDERATIONS ON DOUBLE EXCHANGE [J].
ANDERSON, PW ;
HASEGAWA, H .
PHYSICAL REVIEW, 1955, 100 (02) :675-681
[2]   Giant magnetoresistance of a two-dimensional ferromagnet La2-2xCa1+2xMn2O7 [J].
Asano, H ;
Hayakawa, J ;
Matsui, M .
APPLIED PHYSICS LETTERS, 1996, 68 (25) :3638-3640
[3]   Layered Ruddlesden-Popper manganese oxides: Synthesis and cation ordering [J].
Battle, PD ;
Green, MA ;
Laskey, NS ;
Millburn, JE ;
Murphy, L ;
Rosseinsky, MJ ;
Sullivan, SP ;
Vente, JF .
CHEMISTRY OF MATERIALS, 1997, 9 (02) :552-559
[4]   Control of electronic properties by lanthanide size and manganese oxidation state in the Mn-III/Mn-IV Ruddlesden-Popper phases Ln(2-x)Sr(1+x)Mn(2)O(7) [J].
Battle, PD ;
Green, MA ;
Laskey, NS ;
Kasmir, N ;
Millburn, JE ;
Spring, LE ;
Sullivan, SP ;
Rosseinsky, MJ ;
Vente, JF .
JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (06) :977-988
[5]   Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1) [J].
Battle, PD ;
Blundell, SJ ;
Green, MA ;
Hayes, W ;
Honold, M ;
Klehe, AK ;
Laskey, NS ;
Millburn, JE ;
Murphy, L ;
Rosseinsky, MJ ;
Samarin, NA ;
Singleton, J ;
Sluchanko, NE ;
Sullivan, SP ;
Vente, JF .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (32) :L427-L434
[6]  
CHI EO, UNPUB
[7]   Magnetoresistance in layered manganite compounds [J].
Goldman, AM .
SCIENCE, 1996, 274 (5293) :1630-1631
[8]  
Goodenough J. B., 1963, MAGNETISM CHEM BOND, P168
[9]   THEORY OF THE ROLE OF COVALENCE IN THE PEROVSKITE-TYPE MANGANITES [LA,M(II)]MNO3 [J].
GOODENOUGH, JB .
PHYSICAL REVIEW, 1955, 100 (02) :564-573
[10]   Effect of lanthanide ions on the magnetotransport properties in layered Sr1.6R1.4Mn2O7 (R = La, Pr, Nd, Gd) [J].
Hur, NH ;
Kim, JT ;
Yoo, KH ;
Park, YK ;
Park, JC ;
Chi, EO ;
Kwon, YU .
PHYSICAL REVIEW B, 1998, 57 (17) :10740-10744
123