Magnetism of manganite nanotubes constituted by assembled nanoparticles

Curiale  J; Sachez  RD; Troiani  HERamos  CAPastoriza  HLeyva  AGLevy  P

首页> 外文期刊>Physical review, B. Condensed matter and materials physics >Magnetism of manganite nanotubes constituted by assembled nanoparticles

【24h】

Magnetism of manganite nanotubes constituted by assembled nanoparticles

机译：

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

We present a study on the magnetic properties of manganite ultrafine grains assembled in nanotubes of 800 nm of external diameter and 6-8 mu m length. The study includes two homogeneous ferromagnetic compounds, La0.67Ca0.33MnO3 and La0.67Sr0.33MnO3, and one exhibiting ferromagnetic and charge-ordered phase coexistence, La0.325Pr0.300Ca0.375MnO3. From magnetic measurements, we conclude that the grains behave as single magnetic domains. Observations of dipolar interactions between magnetic grains are evidenced by isothermal remanent magnetization and direct current demagnetization experiments. These experiments suggest that the grain magnetic moments should be arranged in a fanning configuration at H=0. Also, a uniaxial shape anisotropy was observed on previously aligned ferromagnetic nanotubes by ferromagnetic-resonance experiences. In La0.325Pr0.300Ca0.375MnO3, we observe distinctive features related to its inhomogeneous character as compared with the ferromagnetic homogeneous nanotubes.

著录项

来源
《Physical review, B. Condensed matter and materials physics》 |2007年第22期|4410-1-4410-9-0|共9页
作者
Curiale J; Sachez RD; Troiani HERamos CAPastoriza HLeyva AGLevy P;
展开▼
作者单位

Univ Nacl Cuyo, CNyN, Comis Nacl Energia Atom, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina;

Univ Nacl Cuyo, Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina;

CNyN, Comis Nacl Energia Atom, RA-1650 Buenos Aires, DF, Argentina;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类固体物理学;
关键词
PHASE-SEPARATION; FERROMAGNETIC PARTICLES; ROOM-TEMPERATURE; MAGNETORESISTANCE; OXIDE; LA0.67CA0.33MNO3; NANOSTRUCTURES; LA0.5CA0.5MNO3; MAGNETIZATION; TRANSISTORS;

Magnetism of manganite nanotubes constituted by assembled nanoparticles

摘要

著录项

相关主题

期刊订阅