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Charge and Heat Transport Phenomena in Electronic and Spin Structures in B20-type Compounds

Part of the Springer Theses Book Series

DOI: 10.1007/978-4-431-55660-2

ISBN: 978-4-431-55659-6

Publisher: Springer Japan - Springer Journals

Aug 1, 2015

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Chapter 1Introduction

Kanazawa, Naoya

Pages: 1 –21

[Compounds of transition-metal element and group-14 element with composition ratio of 1:1 sometimes crystallize into a so-called B20-type structure with noncentrosymmetric space group P213\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts}...
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Chapter 2Experimental Methods

Kanazawa, Naoya

Pages: 23 –27

[In this Chapter, we show experimental methods used in this study, i.e., crystal growth of bulk poly- and single-crystals, thin-film fabrication, measurements of magnetization and transport properties, and neutron diffraction.]
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Chapter 3Magnetic and Transport Properties in B20-type Germanides

Kanazawa, Naoya

Pages: 29 –44

[We overview magnetization and electrical-transport properties of a series of B20-type germanides. From systematic measurements of those properties, especially by determining the critical magnetic field Hc\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym}...
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Chapter 43D Skyrmion-Lattice and Topological Hall Effect in MnGe

Kanazawa, Naoya

Pages: 45 –60

[We have observed topological Hall effect over a wide temperature-magnetic field region in a B20-type MnGe. The magnitude of the topological Hall resistivity is nearly temperature-independent below 70 K, which reflects the real-space emergent magnetic field proportional to a geometric quantity,...
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Chapter 5Skyrmion Formation in Epitaxial FeGe Thin Films

Kanazawa, Naoya

Pages: 61 –73

[We study the skyrmion formation in nanostructured FeGe Hall-bar devices by measurements of topological Hall effect, which extracts the winding number of a spin texture as an emergent magnetic field. Stepwise profiles of the topological Hall resistivity are observed in the course of varying the...
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Chapter 63D Dirac Electrons and Large Thermoelectric Properties in CoGe

Kanazawa, Naoya

Pages: 75 –84

[We have synthesized B20-type Co1-x\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt}...
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Chapter 7Conclusion

Kanazawa, Naoya

Pages: 85 –86

[Motivated by the various interesting phenomena observed in B20-type silicon compounds, we have studied B20-type transition-metal germanium compounds mainly focusing on skyrmion magnetic structure and Dirac band structure.]

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