Thesis High-Resolution Photoemission Study of Kondo Insulators ...

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120 Chapter 8. Temperature and Al-Substitution Dependence of the ... Difference DOS (a) (b) 295 K x = 0.00 x = 0.02 x = 0.05 x = 0.10 x = 0.30 7 K -250-200-150-100 -50 0 Energy relative to E F (meV) 295 K 225 K 150 K 75 K 7 K x = 0.00 x = 0.30 -250-200-150-100 -50 0 Energy relative to E F (meV) Figure 8.8: Difference DOS of FeSi1−xAlx from the DOS of FeSi0.70Al0.03 at 7 K. (a) Temperature dependence for each composition, T = 7 K (thick curve), 75 K, 150 K, 225 K, and 295 K from bottom. (b) Substitution dependence at each temperature. The thick solid curves represent the DOS of the x = 0 sample, the dashed curves x = 0.02, the thick curves x = 0.05, the dot-dashed curves x = 0.10, and the solid dashed curves x = 0.30.
8.3. Results and Discussion 121 σ (Ω -1 cm -1 ) 6000 4000 2000 0 6000 4000 2000 0 6000 4000 2000 0 6000 4000 2000 0 10 -2 300 K 200 K 100 K 10 K 10 -1 x = 0.05 x = 0.10 10 0 ω (eV) x = 0.00 x = 0.02 10 1 Figure 8.9: Optical conductivity of FeSi1−xAlx polycrystals [8.14].
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Thesis High-Resolution Photoemissio
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ii CONTENTS 5.2 Experimental . . .
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2 Chapter 1. Introduction Figure 1.
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4 Chapter 1. Introduction Figure 1.
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6 Chapter 1. Introduction peaks, wh
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8 Chapter 1. Introduction only the
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10 Chapter 1. Introduction directio
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12 Chapter 1. Introduction activati
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14 References [1.14] F. Iga, M. Kas
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Chapter 2 Photoemission Spectroscop
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2.1. General Principles 19 Photoele
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2.1. General Principles 21 where R(
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2.2. Experimental 23 DOS Intensity
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2.2. Experimental 25 Figure 2.5: Il
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2.2. Experimental 27 baking out the
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References [2.1] O. Gunnarsson and
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32 Chapter 3. Photoemission Study o
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44 References the Kondo peak positi
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46 Chapter 4. Evolution of Electron
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References [4.1] G. Aeppli and Z. F
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References 61 [4.25] P. Weibel,M. G
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64 Chapter 5. Temperature Dependenc
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Page 78 and 79: 74 References [5.10] N. Shimizu, F.
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Page 83 and 84: 6.1. Introduction 79 Figure 6.2: Ma
Page 85 and 86: 6.3. Results and Discussion 81 6.3
Page 87 and 88: 6.3. Results and Discussion 83 DOS
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Page 97: 6.4. Summary 93 and consistent anal
Page 100 and 101: 96 References [6.11] M. J. Rozenber
Page 102 and 103: 98 Chapter 7. Temperature and Co-Su
Page 104 and 105: 100 Chapter 7. Temperature and Co-S
Page 113 and 114: References [7.1] G. Aeppli and Z. F
Page 115 and 116: Chapter 8 Temperature and Al-Substi
Page 117 and 118: 8.2. Experimental 113 and Fisk [8.2
Page 119 and 120: 8.3. Results and Discussion 115 8.3
Page 121 and 122: 8.3. Results and Discussion 117 Int
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Page 127: 8.4. Summary 123 temperature magnet
Page 130 and 131: 126 References [8.14] T. Tonogai, A
Page 132 and 133: 128 Chapter 9. Conclusion has shown
Page 134 and 135: 130 Chapter 9. Conclusion (a) FeSi
Page 136: 132 Chapter 9. Conclusion developed
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