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

Nonfiction, Science & Nature, Technology, Superconductors & Superconductivity, Science, Physics, Solid State Physics
Cover of the book Charge and Heat Transport Phenomena in Electronic and Spin Structures in B20-type Compounds by Naoya Kanazawa, Springer Japan
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Naoya Kanazawa ISBN: 9784431556602
Publisher: Springer Japan Publication: July 31, 2015
Imprint: Springer Language: English
Author: Naoya Kanazawa
ISBN: 9784431556602
Publisher: Springer Japan
Publication: July 31, 2015
Imprint: Springer
Language: English

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.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

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.

More books from Springer Japan

Cover of the book Optical Spectra of Phthalocyanines and Related Compounds by Naoya Kanazawa
Cover of the book High-Performance and Specialty Fibers by Naoya Kanazawa
Cover of the book In Pursuit of an African Green Revolution by Naoya Kanazawa
Cover of the book Uterine Endometrial Function by Naoya Kanazawa
Cover of the book Treatment of Thyroid Tumor by Naoya Kanazawa
Cover of the book Geometrically Constructed Markov Chain Monte Carlo Study of Quantum Spin-phonon Complex Systems by Naoya Kanazawa
Cover of the book Morpho-functional Machines: The New Species by Naoya Kanazawa
Cover of the book Cortical Development by Naoya Kanazawa
Cover of the book Game Theory and Its Applications by Naoya Kanazawa
Cover of the book Cognitive Neuroscience Robotics B by Naoya Kanazawa
Cover of the book Inflammation and Metastasis by Naoya Kanazawa
Cover of the book Immunotherapy of Cancer by Naoya Kanazawa
Cover of the book Radioactive Waste Engineering and Management by Naoya Kanazawa
Cover of the book Advances in Organic Crystal Chemistry by Naoya Kanazawa
Cover of the book Dementia with Lewy Bodies by Naoya Kanazawa
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy