Symmetry of the charge-ordered phases in Pr0.5Ca0.5MnO3

被引：0

作者：

Sagdeo, P. R. ^{[1
,2
]}

Lalla, N. P. ^{[3
]}

机构：

[1] Indian Inst Technol, Discipline Phys, Indore 452017, Madhya Pradesh, India

[2] Indian Inst Technol, Discipline Surface Sci Engn, Indore 452017, Madhya Pradesh, India

[3] UGC DAE Consortium Sci Res, Indore 452001, Madhya Pradesh, India

来源：

PHILOSOPHICAL MAGAZINE | 2014年 / 94卷 / 02期

关键词：

crystal symmetry; electron diffraction; phase separation; ELECTRON-DIFFRACTION; TEMPERATURE;

D O I：

10.1080/14786435.2013.845312

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystallographic symmetry of the charge-ordered Pr0.5Ca0.5MnO3 manganite is studied at approximate to 98K using convergent beam electron diffraction technique. These studies have revealed appearance of two different type of charge-ordered phases in different domains of the same grain. These correspond to be monoclinic and triclinic phases. These studies reveal that the symmetry of the charge-ordered phase is highly sensitive to the local strain conditions.

引用

页码：117 / 124

页数：8

共 21 条

[1]

Ahn K. H., 2001, NATURE, V428, P401

[2] Strain control of superlattice implies weak charge-lattice coupling in La0.5Ca0.5MnO3 [J].

Cox, S ;

Rosten, E ;

Chapman, JC ;

Kos, S ;

Calderón, MJ ;

Kang, DJ ;

Littlewood, PB ;

Midgley, PA ;

Mathur, ND .

PHYSICAL REVIEW B, 2006, 73 (13)

[3]

Dagotto E., 2003, NANOSCALE PHASE SEPA, V136

[4] Quadrupolar effect in the perovskite manganite La1-xSrxMnO3 [J].

Hazama, H ;

Goto, T ;

Nemoto, Y ;

Tomioka, Y ;

Asamitsu, A ;

Tokura, Y .

PHYSICAL REVIEW B, 2000, 62 (22) :15012-15020

[5] NEUTRON-DIFFRACTION STUDY OF PR1-XCAXMNO3 PEROVSKITES [J].

JIRAK, Z ;

KRUPICKA, S ;

SIMSA, Z ;

DLOUHA, M ;

VRATISLAV, S .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 53 (1-2) :153-166

[6] On the microstructure of the charge density wave observed in La1-xCaxMnO3 [J].

Loudon, JC ;

Cox, S ;

Mathur, ND ;

Midgley, PA .

PHILOSOPHICAL MAGAZINE, 2005, 85 (10) :999-1015

[7]

Pissas M., 2003, PHYS REV B, V68

[8] Charge, orbital, and magnetic ordering in La0.5Ca0.5MnO3 [J].

Radaelli, PG ;

Cox, DE ;

Marezio, M ;

Cheong, SW .

PHYSICAL REVIEW B, 1997, 55 (05) :3015-3023

[9]

Rao CNR, 1998, COLOSSAL MAGNETORESISTANCE, CHARGE ORDERING AND RELATED PROPERTIES OF MANGANESE OXIDES, P1

[10] Strain induced coexistence of monoclinic and charge ordered phases in La1-xCaxMnO3 [J].

Sagdeo, P. R. ;

Anwar, Shahid ;

Lalla, N. P. .

PHYSICAL REVIEW B, 2006, 74 (21)

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