{"product_id":"quantum-oscillations-and-charge-neutral-fermions-in-topological-kondo-insulator-ybb-von-yuki-sato","title":"Quantum Oscillations and Charge-Neutral Fermions in Topological Kondo Insulator YbB₁₂","description":"\n                                \n                \u003cp\u003eElectronic state of every solid is basically classified into two categories according to its electrical responses: insulator or metal. A textbook of modern solid state physics explains that shape of a Fermi surface plays a key role in most physical properties in metals. One of the well-established experimental methods to detect a Fermi surface is measurement of quantum oscillations that is a periodic response of physical quantities with respect to external magnetic fields. As insulators do not host Fermi surface, it is believed that they do not exhibit any quantum oscillations.\u003c\/p\u003e\n                                \n                \u003cp\u003e\n                                        This book presents a comprehensive review of recent observations of quantum oscillations in the Kondo insulators, SmB6 and YbB12, and discusses how the observations are demonstrated by a newly proposed mechanism where emergent charge-neutral fermions exhibit quantum oscillations instead of bare electrons. It also focuses on topological properties of Kondo insulators, and demonstrates that YbB12 hosts asurface metallic conduction owing to its non-trivial band structure. Further it presents the experiments of specific heat and thermal conductivity in YbB12 down to ultra-low temperature to discuss the possible low-energy excitations from a Fermi surface of neutral fermions. The demonstrated gapless and itinerant fermionic excitations, that is the significant contribution from charge neutral fermions, violates Wiedemann-Franz law. The discoveries point out a highly unconventional phase of quantum state—electrically insulating but thermally metallic—realized in the bulk of topological Kondo insulators.\n                    \n                    \u003cbr\u003e\n                                    \n                \u003c\/p\u003e\n                            \n            \u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9789811656767\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9789811656798\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Hardcover - 9789811656767","offer_id":40150889168989,"sku":"9789811656767","price":171.19,"currency_code":"EUR","in_stock":true},{"title":"Softcover - 9789811656798","offer_id":40681117876317,"sku":"9789811656798","price":171.19,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/aefa75ff-fc79-4b06-9bb3-80085af31066.jpg?v=1778743939","url":"https:\/\/shop.autorenwelt.de\/en\/products\/quantum-oscillations-and-charge-neutral-fermions-in-topological-kondo-insulator-ybb-von-yuki-sato","provider":"Autorenwelt Shop","version":"1.0","type":"link"}