MAGNETOOPTICAL STUDIES OF SM(FE,TI)12 PERPENDICULAR TEXTURED SPUTTERED FILMS

被引：6

作者：

CADIEU, FJ ^{[1
]}

NAVARATHNA, A ^{[1
]}

RANI, R ^{[1
]}

HEGDE, H ^{[1
]}

BOJARCZUK, NA ^{[1
]}

GAMBINO, RJ ^{[1
]}

机构：

[1] IBM CORP,RES CTR,YORKTOWN HTS,NY 10598

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.352722

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of the polar Kerr rotation and optical coercivity as a function of photon energy have been made on almost-equal-to 2 mum thick ThMn12-type crystalline sputtered films of Sm (Fe,Ti) 12. The optical coercivity for a Ti containing (222) textured film was 3. 10 kOe at a photon energy of 1.25 eV, 2.96 kOe at 1.84 eV, and 2.92 kOe at 2.45 eV. The optical coercivity for a similar composition (002) textured Sm(Fe,Ti)12 film was relatively constant at 1.24 kOe. These samples were measured in air at 300 K without any protective overcoating. The polar Kerr rotation observed for these crystalline films versus the photon energy paralleled that observed for pure Fe. The magnetometer and optical coercivities for the (222) textured Sm (Fe,Ti)12 films were 1.5 and 2.5 times as large, respectively, as for similar composition (002) textured films. Differences in grain sizes incorporated during the direct synthesis of the films onto heated substrates are needed to account for the large differences observed in the coercivities for the (222) versus (002) textured films.

引用

页码：6124 / 6126

页数：3

共 5 条

[1]

BUSCHOW KHJ, 1988, FFERROMAGNETIC MATER, V4

[2] HIGH-ENERGY PRODUCT THMN12 SM-FE-T AND SM-FE PERMANENT-MAGNETS SYNTHESIZED AS ORIENTED SPUTTERED FILMS [J].