PULSED LASER DEPOSITION OF EPITAXIAL BAFE12O19 THIN-FILMS

被引：96

作者：

CAROSELLA, CA ^{[1
]}

CHRISEY, DB ^{[1
]}

LUBITZ, P ^{[1
]}

HORWITZ, JS ^{[1
]}

DORSEY, P ^{[1
]}

SEED, R ^{[1
]}

VITTORIA, C ^{[1
]}

机构：

[1] NORTHEASTERN UNIV,BOSTON,MA 02115

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 71卷 / 10期

关键词：

D O I：

10.1063/1.350614

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Epitaxial thin films of barium hexaferrite (BaFe12O19) have been fabricated by the pulsed laser deposition technique on basal plane sapphire. Structural studies reveal the films to be predominantly single phase and crystalline, with the c axis oriented perpendicular to the film plane. The magnetic parameters deduced from vibrating sample magnetometer and ferromagnetic resonance (FMR) measurements are close to the parameters associated with bulk materials. Post annealing of the films reduced the FMR linewidth by more than a factor of 3 so that it compares reasonably well with single-crystal films. The derivative FMR linewidth was measured to be 66 Oe at 58 GHz and 54 Oe at 86 GHz. Spin-wave-like modes have been observed for the first time in barium ferrite films. The deduced exchange stiffness constant of 0.5 x 10(-6) ergs/cm is in reasonable agreement with recent calculations.

引用

页码：5107 / 5110

页数：4

共 16 条

[1] APPLICATION OF A HEXAGONAL FERRITE TO A MILLIMETER-WAVE Y-CIRCULATOR [J].