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Magnetic hysteresis is studied in the orthoferrites ErFeO3 and TmFeO3 using the single crystal samples of millimeter dimensions. It is shown that in both materials one observes a temperature transition manifesting itself through the temperature hysteresis of the magnetic moment and a peculiar temperature evolution of the field hysteresis loop shapes near this transition. Experiments rule out the hypothesis that the ordering of the orthoferrite’s rare-earth magnetic moments plays an important role in these phenomena. The hysteresis curves can be explained by a few-domain magnetic state of the samples that results from the weak ferromagnetism of the orthoferrites. The phenomenon is generic for weak ferromagnets with temperature dependent magnetization. A large characteristic magnetic length makes the behavior of the relatively big samples analogous to that observed in the nanosize samples of strong ferromagnets. |
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爱与雨下: 金币+1 2013-12-03 07:52:50
xiehuaiyan: 金币+15, 翻译EPI+1, ★有帮助, 翻译的不够准确 2013-12-03 11:11:27
爱与雨下: 金币+1 2013-12-03 07:52:50
xiehuaiyan: 金币+15, 翻译EPI+1, ★有帮助, 翻译的不够准确 2013-12-03 11:11:27
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Magnetic hysteresis is studied in the orthoferrites ErFeO3 and TmFeO3 using the single crystal samples of millimeter dimensions. 对在纳米尺寸下的正氧体ErFeO3和 TmFeO3的单晶样品的研究显示两种材料 It is shown that in both materials one observes a temperature transition manifesting itself through the temperature hysteresis of the magnetic moment and a peculiar temperature evolution of the field hysteresis loop shapes near this transition. 显示两种材料它们都服从温度转换来显示自己的存在,通过温度迟滞(磁矩的温度迟滞)和一种奇特的温度变化(靠近这个转换的磁滞回线形成的) Experiments rule out the hypothesis that the ordering of the orthoferrite’s rare-earth magnetic moments plays an important role in these phenomena. 实验排除了某个假设,这个假设是正氧体中各稀土磁矩的顺序是在这个现象中起重要作用. The hysteresis curves can be explained by a few-domain magnetic stateof the samples that results from the weak ferromagnetism of the orthoferrites. 此磁滞回线可以这样解释,样品中的少量的磁畴状态源于正氧铁的弱铁磁性. [注:???] The phenomenon is generic for weak ferromagnets with temperature dependent magnetization. 此现象是一般的,对于弱铁磁体说的,它们拥有依赖于温度的磁性. A large characteristic magnetic length makes the behavior of the relatively big samples analogous to that observed in the nanosize samples of strong ferromagnets. 一个很长的特性磁路制造了这种结果(相对大的样本的表现类似于所观察到的纳米尺寸强铁磁体的行为) [仅供参考] |
2楼2013-12-03 01:28:22