Study of magneto-transmission spectra of La0.7Pb0.3MnO3-δ epitaxial thin film

被引：1
|
作者：
Gorman, William [1 ]
Kim, Minseob [1 ]
Wang, Jian-Qing [1 ]
机构：
[1] SUNY Binghamton, Dept Phys Appl Phys & Astron, Binghamton, NY 13902 USA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2007年 / 43卷 / 06期
关键词：
colossal magneto-resistance (CMR) effect; magnetic oxide films; magneto-refractive effect (MRE);
D O I：
10.1109/TMAG.2007.892181
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Magneto-transmission (MT) of epitaxially grown La0.7Pb0.3MnO3-delta as measured and studied. ThermoElectron Nexus 670 FT-IR spectrometer equipped with an electromagnet was used to obtain IR spectra in the range of 350 to 4000 cm(-1) in various applied magnetic fields up to 1.0 Tesla. For optimal magneto-spectroscopic measurements in transmission, the studied film had a thickness of 190 run, with a maximum value up to 80% at 320 K in the colossal magneto-resistance (CMR) effect in 5.5 Testa. It was observed that the NIT peaks at around 1400 cm(-1) with a maximum value of 1.0% at 1.0 Tesla. When compared with the CMR effect, the measured MT value at this peak position resembles that of the CMR effect closely in the field range studied.
引用
收藏
页码：3061 / 3063
页数：3
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