Spontaneous bubble domain formation in a layered ferromagnetic crystal

被引：74

作者：

Fukumura, T

Sugawara, H

Hasegawa, T

Tanaka, K

Sakaki, H

Kimura, T

Tokura, Y

机构：

[1] Univ Tokyo, Dept Appl Chem, Tokyo 1138656, Japan

[2] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan

[3] Univ Tokyo, Adv Sci & Technol Res Ctr, Tokyo 1538904, Japan

[4] Joint Res Ctr Atom Technol, Tsukuba, Ibaraki 3050046, Japan

[5] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

来源：

SCIENCE | 1999年 / 284卷 / 5422期

关键词：

D O I：

10.1126/science.284.5422.1969

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Magnetic domain structure on the surface of the Layer-structured ferromagnet La1.4Sr1.6Mn2O7 was observed in the temperature range from 37 to 97 kelvin with a scanning Hall probe microscope. The sensitivity to temperature of the domain structure changes was targe relative to that in conventional ferromagnets. The stable and spontaneous appearance of magnetic bubble domains without an external magnetic field was observed in the neighborhood of 70 kelvin. The phenomenon observed could provide a potential route toward magnetic bubble memory.

引用

页码：1969 / 1971

页数：3

共 10 条

[1]

BOBECK AH, 1975, MAGNETIC BUBBLES

[2]

FUKUMURA T, 1998, THESIS U TOKYO

[3] Effects of reduced dimensionality on spin dynamics in the layered perovskite La1.4Sr1.6Mn2O7 [J].