| 3类硬磁畴畴壁中垂直布洛赫线的温度稳定性 |
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| 引用本文： | 郭革新,马丽梅,唐贵德,孙会元,聂向富.3类硬磁畴畴壁中垂直布洛赫线的温度稳定性[J].河北师范大学学报(自然科学版),2003,27(4):357-359. |
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| 作者姓名： | 郭革新 马丽梅 唐贵德 孙会元 聂向富 |
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| 作者单位： | 1. 河北师范大学,物理学院,河北,石家庄,050016;河北工业大学,理学院,天津,300130
2. 河北师范大学,物理学院,河北,石家庄,050016 |
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| 基金项目： | 河北省自然科学基金资助项目(10 0 147) |
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| 摘 要： | 研究了温度作用下3类硬磁畴畴壁中垂直布洛赫线(VBL)的消失过程，发现和证实了普通硬磁泡(OHBs)，第Ⅰ类哑铃畴(IDs)和第Ⅱ类哑铃畴(IIDs)都存在一个与材料参量有关的VBL解体的临界温度范围，对同一样品而言，3类硬磁畴的起始临界温度是相同的，而VBL完全解体的最低温度却是依次增加的，在临界温度范围内，3类硬磁畴畴壁中的VBL是不稳定的，而且是逐步消失的。
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| 关 键 词： | 硬磁畴 普通硬磁泡 哑铃畴 畴壁 垂直布洛赫线 温度稳定性 临界温度 |
| 文章编号： | 1000-5854(2003)04-0357-03 |
Stability of Temperater on Vertical Bloch Lines in Domain Walls of Three Kinds of Hard Domains |
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| GUO Ge xin ,MA Li mei ,TANG Gui de ,SUN Hui yuan ,NIE Xiang fu.Stability of Temperater on Vertical Bloch Lines in Domain Walls of Three Kinds of Hard Domains[J].Journal of Hebei Normal University,2003,27(4):357-359. |
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| Authors: | GUO Ge xin MA Li mei TANG Gui de SUN Hui yuan NIE Xiang fu |
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| Institution: | GUO Ge xin 1,2,MA Li mei 1,TANG Gui de 1,SUN Hui yuan 1,NIE Xiang fu 1 |
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| Abstract: | The annihilation of vertical Bloch lines in the domain walls of three kinds of hard domains subjected to temperature is investigated experimentally. It is found and confirmed that there exists a critical temperature range for the break down of the VBLs in each of the OHB, ID and IID hard domains. For the same sample, the initial critical temperatures of three kinds of hard domains are equal; the final critical temperatures are successively increased. The VBLs in the domain walls of the three kinds of hard domains are not stable in the critical temperature range, and are gradually annihilated. |
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| Keywords: | ordinary hard bubble dumbbell domain domain walls vertical Bloch line critical temperature |
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