LOW-TEMPERATURE STABLE NANOMETER-SIZE FCC-FE PARTICLES WITH NO MAGNETIC-ORDERING

被引：66

作者：

HANEDA, K

ZHOU, ZX

MORRISH, AH

MAJIMA, T

MIYAHARA, T

机构：

[1] UNIV MANITOBA,DEPT PHYS,WINNIPEG R3T 2N2,MANITOBA,CANADA

[2] INST PHYS & CHEM RES,WAKO 35001,JAPAN

[3] DAINIPPON INK & CHEM INC,SAKURA 28501,JAPAN

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.46.13832

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanometer-size iron particles (approximately 8. nm diameter) with the face-centered-cubic (fcc) structure were made using a technique based on the transversely excited atmospheric CO2-laser-induced breakdown of Fe(CO)5. This fcc gamma-Fe phase is extremely stable based on observations over three years. Mossbauer spectra over a small velocity range with and without a magnetic field applied show that these nanometer fcc-Fe particles are paramagnets down to a temperature of 1.8 K. This result supports theoretical predictions that the ground state of fcc iron depends strongly on the volume.

引用

页码：13832 / 13837

页数：6

共 43 条

[1] NEUTRON DIFFRACTION DETERMINATION OF ANTIFERROMAGNETISM IN FACE-CENTERED CUBIC (GAMMA) IRON [J].