Regular Papers
Ferromagnetism of Nano-KNbO3
2013 年 38 巻 4 号 p. 521-524
詳細
2013 年 38 巻 4 号 p. 521-524
KNbO3 (KNO) nano-particles with the diameter of about 20 nm were prepared by mechanical milling using planetary ball mill from the commercial KNO powder. Rotation speeds of ball mill were 0 to 300 rpm, where the milling time was kept at 15 minutes. Magnetization was measured by SQUID magnetometer. The 250 rpm milled sample showed a tenth larger saturation magnetization than that of BaTiO3 with vacancies.
