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Více informací o knize Charge and Heat Transport Phenomena in Electronic and Spin Structures in B20-type Compounds

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Anotace knihy

This thesis presents systematic experimental research conducted on chiral-lattice crystals referred to as B20-type germanium compounds, especially focusing on skyrmion spin textures and Dirac electrons. An emergent electromagnetic field observed in MnGe, i.e., a gauge field originating from a topologically winding spin texture, demonstrates a formation of three-dimensional skyrmion crystals. Detection of skyrmions in nano-scale Hall-bar devices made of FeGe is realized by measuring the topological Hall effect, a transport property reflecting emergent fields produced by skyrmions. By measuring the electron-filling dependence of thermopower in CoGe , a pronounced thermoelectric property found in this compound is revealed to stem from the asymmetric density of states appearing at certain levels of Fermi energy in the Dirac electron state. The three main results listed above will contribute to enriching a variety of novel electromagnetic responses of emergent gauge fields in solids, to realizing high-performance skyrmion-based magnetic memory and to designing high-efficiency thermoelectric materials, respectively.

Parametry knihy

Zařazení knihy Knihy v angličtině Mathematics & science Physics Materials / States of matter

• Plný název: Charge and Heat Transport Phenomena in Electronic and Spin Structures in B20-type Compounds
• Autor: Naoya Kanazawa
• Jazyk: Angličtina
• Vazba: Pevná
• Počet stran: 89
• EAN: 9784431556596
• ISBN: 4431556591
• ID: 09266630
• Nakladatelství: Springer Verlag, Japan
• Hmotnost: 322 g
• Rozměry: 163 × 245 × 11 mm
• Datum vydání: 13. August 2015

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