书目名称 | Charge and Heat Transport Phenomena in Electronic and Spin Structures in B20-type Compounds |
编辑 | Naoya Kanazawa |
视频video | http://file.papertrans.cn/225/224068/224068.mp4 |
概述 | Nominated as an outstanding Ph.D. thesis by The University of Tokyo’s Applied Physics Department in 2013.Presents basic studies for applications to electrically controlled magnetic memory devices or h |
丛书名称 | Springer Theses |
图书封面 |  |
描述 | .This thesis presents systematic experimental research 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 demonstrates a formation of three-dimensional skyrmion crystals. Detection of skyrmions in nanoscale 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 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 named 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. |
出版日期 | Book 2015 |
关键词 | 3D Skyrmion Crystal State; B20-type Transition-metal Germanium Compound; Gauge Flux of Berry Phase; Sky |
版次 | 1 |
doi | https://doi.org/10.1007/978-4-431-55660-2 |
isbn_softcover | 978-4-431-56306-8 |
isbn_ebook | 978-4-431-55660-2Series ISSN 2190-5053 Series E-ISSN 2190-5061 |
issn_series | 2190-5053 |
copyright | Springer Japan 2015 |