55Mn NMR investigation of electronic phase separation in La1-xCaxMnO3 for 0.2 ≤ x ≤ 0.5

被引：130

作者：

Papavassiliou, G ^{[1
]}

Fardis, M

Belesi, M

Maris, TG

Kallias, G

Pissas, M

Niarchos, D

Dimitropoulos, C

Dolinsek, J

机构：

[1] Natl Ctr Sci Res Demokritos, Inst Mat Sci, Athens 15310, Greece

[2] Ecole Polytech Fed Lausanne, PH Ecublens, Inst Expt Phys, CH-1015 Lausanne, Switzerland

[3] Josef Stefan Inst, Ljubljana 61111, Slovenia

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.84.761

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Mn-55 NMR line shape measurements in La1-xCaxMnO3 for 0.20 less than or equal to x less than or equal to 0.50 provide experimental evidence about the existence of two distinct regions in the T-x magnetic phase diagram, where the homogeneous ferromagnetic (FM) metallic state is separated into FM metallic and FM insulating regions; These results are in agreement with recent theoretical predictions, which reveal a novel electronic phase separation in two FM states, providing orbital ordering and Jahn-Teller phonons are taken into consideration.

引用

页码：761 / 764

页数：4

共 16 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] Enhancement of the magneto resistance due to structural transition in Mg-doped perovskite Mn oxides [J].

Anane, A ;

Dupas, C ;

LeDang, K ;

Renard, JP ;

Veillet, P ;

Pinsard, L ;

Revcolevschi, A .

APPLIED PHYSICS LETTERS, 1996, 69 (08) :1160-1162

[3] Direct relationship between magnetism and MnO6 distortions in La1-xCaxMnO3 [J].

Booth, CH ;

Bridges, F ;

Kwei, GH ;

Lawrence, JM ;

Cornelius, AL ;

Neumeier, JJ .

PHYSICAL REVIEW LETTERS, 1998, 80 (04) :853-856

[4] Phase separation in La0.5Ca0.5MnO3 observed by 55Mn and 139La NMR [J].

Dho, J ;

Kim, I ;

Lee, S .

PHYSICAL REVIEW B, 1999, 60 (21) :14545-14548

[5] Transition between two ferromagnetic states driven by orbital ordering in La0.88Sr0.12MnO3 [J].

Endoh, Y ;

Hirota, K ;

Ishihara, S ;

Okamoto, S ;

Murakami, Y ;

Nishizawa, A ;

Fukuda, T ;

Kimura, H ;

Nojiri, H ;

Kaneko, K ;

Maekawa, S .

PHYSICAL REVIEW LETTERS, 1999, 82 (21) :4328-4331

[6] MN55 NUCLEAR MAGNETIC RESONANCE OF MN4+ IONS LOCATED AT B-SITES IN FERRITES [J].

KUBO, T ;

YASUOKA, H ;

HIRAI, A .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1966, 21 (04) :812-&

[7] Crossover from large to small polarons across the metal-insulator transition in manganites [J].

Lanzara, A ;

Saini, NL ;

Brunelli, M ;

Natali, F ;

Bianconi, A ;

Radaelli, PG ;

Cheong, SW .

PHYSICAL REVIEW LETTERS, 1998, 81 (04) :878-881

[8] Local Jahn-Teller distortion in La1-xSrxMnO3 observed by pulsed neutron diffraction [J].

Louca, D ;

Egami, T ;

Brosha, EL ;

Roder, H ;

Bishop, AR .

PHYSICAL REVIEW B, 1997, 56 (14) :R8475-R8478

[9] Unconventional ferromagnetic transition in La1-xCaxMnO3 [J].

Lynn, JW ;

Erwin, RW ;

Borchers, JA ;

Huang, Q ;

Santoro, A ;

Peng, JL ;

Li, ZY .

PHYSICAL REVIEW LETTERS, 1996, 76 (21) :4046-4049

[10] STUDY OF (LA1-XCAX)MNO3 .2. MAGNETIC PROPERTIES [J].

MATSUMOT.G .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1970, 29 (03) :615-+

← 1 2 →