Magnetic versus orbital polarons in colossal magnetoresistance manganites -: art. no. 100403

被引：77

作者：

De Teresa, JM ^{[1
]}

Ibarra, MR

Algarabel, P

Morellon, L

García-Landa, B

Marquina, C

Ritter, C

Maignan, A

Martin, C

Raveau, B

Kurbakov, A

Trounov, V

机构：

[1] Univ Zaragoza, Fac Ciencias, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[3] ISMRA Univ Caen, Lab Crismat, F-140050 Caen, France

[4] Inst Phys, Gatchina 188350, Leningrad Distr, Russia

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.65.100403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to investigate the paramagnetic ground state of the colossal magnetoresistance (CMR) Sm0.55Sr0.45MnO3 compound we have used a wide set of techniques: magnetoresistance, magnetization, high-resolution neutron diffraction, small-angle neutron diffraction, and muon spin relaxation. According to these measurements the paramagnetic ground state would consist of similar to0.8 nm ferromagnetic clusters embedded in a short-range charge/orbital ordered matrix. The CMR effect occurs due to percolation of these ferromagnetic clusters.

引用

页码：1 / 4

页数：4

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