Magnetism and magnetooptical effects in Ce-Fe oxides
Magnetism and magnetooptical effects in Ce-Fe oxides
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DOI：
10.1109/tmag.2006.880514
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发表时间：
2006-10-01
影响因子：
2.1
通讯作者：
Ross, Caroline A.
中科院分区：
文献类型：
--
作者：
Bolduc, Martin;Taussig, Alexander R.;Ross, Caroline A.
研究了在MgO或SrTiO_3（100）衬底上用脉冲激光沉积法在10 ~（-5）Torr或6 mTorr O ~（-2）下生长的CeFeO_3（CFO）和YCeCoFeO_6（YCFCO）薄膜的磁光性质。法拉第旋转磁滞回线在1.55 μ m的波长，产生的饱和度类似于0.6度/μ m的所有CFO膜和类似于0.25度/μ m的YCFCO膜在真空下生长。光学测量给出了2.9的折射率和1.8 dB/μ m的光吸收在相同的波长。在室温下，CFO薄膜的饱和磁化强度达到45 μ m/cm（3）。的磁性和磁光性质的解释是基于电子结构和光学跃迁的Ce 3+在铁石榴石或orthoterite晶格。
The magnetic and magnetooptical properties of CeFeO3 (CFO) and YCeCoFeO6 (YCFCO) films grown by pulsed laser deposition onto MgO or SrTiO3(100) substrates at similar to 10(-5) Torr or at 6 mTorr O-2 are studied. Faraday rotation hysteresis loops were obtained at the 1.55-mu m wavelength, yielding a saturation of similar to 0.6 deg/mu m in all CFO films and similar to 0.25 deg/mu m in the YCFCO film grown under vacuum. Optical measurements give a refractive index of 2.9 and an optical absorption of 1.8 dB/mu m at the same wavelength. The corresponding saturation magnetization in CFO films reaches 45 eum/cm(3) at room temperature. Interpretation of the magnetic and magnetooptical properties is based on the electronic structure and optical transitions of Ce3+ in an iron garnet or orthoferrite lattice.