臺灣博碩士論文加值系統

致謝 I
摘要 II
英文摘要 III
目錄 IV
表目錄 VII
圖目錄 VIII
符號說明 XI
第一章、 前言 1
第二章、 理論基礎與文獻回顧 3
2.1 物質的熱傳導係數 3
2.1.1 熱傳導係數之直接測量 3
2.1.2 熱傳導係數間接測量 5
2.1.2.1 自發熱、電阻檢溫熱傳導係數測量 7
2.2 熱傳導的理論機制 8
2.2.1 晶格振盪─聲子 9
2.2.2 晶體的熱傳導 10
2.2.3 聲子散射對熱傳的影響 11
2.2.3.1 溫度 11
2.2.3.2 尺寸 13
2.2.3.3 其他散射機制 14
2.2.4 非晶固體中的原子振動 15
2.3 磁性材料 16
2.3.1 自旋波 16
2.3.2 磁阻 20
2.3.3 磁壁 21
2.3.3.1 磁壁電阻 22
2.3.3.2 磁壁幾何異向性 23
2.4 巨磁阻結構之熱傳導係數 25
第三章、 研究方法 27
3.1 磁性結構製作 27
3.2 磁化分佈觀測 31
3.3 磁阻測量 32
3.3.1 增量測量模式 34
3.3.2 脈衝測量模式 36
3.4 溫度電阻係數測量 36
3.5 熱傳導係數測量 36
第四章、 實驗結果 39
4.1 樣品結構 39
4.2 磁性材料磁化分佈 41
4.3 垂直與平行磁阻 45
4.4 材料電阻溫度係數 52
4.5 熱傳導係數 52
第五章、 結論 57
參考文獻 59

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