By Naoya Kanazawa

This thesis offers systematic experimental examine on chiral-lattice crystals known as B20-type germanium compounds, particularly concentrating on skyrmion spin textures and Dirac electrons. An emergent electromagnetic box saw in MnGe demonstrates a formation of three-d skyrmion crystals. Detection of skyrmions in nanoscale corridor bar units made up of FeGe is learned by way of measuring the topological corridor impression, a shipping estate reflecting emergent fields produced via skyrmions. by way of measuring the electron-filling dependence of thermopower in CoGe, a reported thermoelectric estate during this compound is printed to stem from the uneven density of states showing at definite degrees of Fermi strength within the Dirac electron state.

The 3 major effects named above will give a contribution to enriching a number of novel electromagnetic responses of emergent gauge fields in solids, to understanding high-performance skyrmion-based magnetic reminiscence, and to designing high-efficiency thermoelectric fabrics, respectively.

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Charge and Heat Transport Phenomena in Electronic and Spin Structures in B20-type Compounds (Springer Theses) by Naoya Kanazawa


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