{"product_id":"9784431563341","title":"Springer Theses","description":"\u003ch1\u003eSpringer Theses\u003c\/h1\u003e \u003ch2\u003eHashimoto, Kenichiro\u003c\/h2\u003e \u003cp\u003e\u003c\/p\u003e\u003cp\u003eIn this book the author presents two important findings revealed by high-precision magnetic penetration depth measurements in iron-based superconductors which exhibit high-transition temperature superconductivity up to 55 K: one is the fact that the superconducting gap structure in iron-based superconductors depends on a detailed electronic structure of individual materials, and the other is the first strong evidence for the presence of a quantum critical point (QCP) beneath the superconducting dome of iron-based superconductors.\u003c\/p\u003e\u003cp\u003eThe magnetic penetration depth is a powerful probe to elucidate the superconducting gap structure which is intimately related to the pairing mechanism of superconductivity. The author discusses the possible gap structure of individual iron-based superconductors by comparing the gap structure obtained from the penetration depth measurements with theoretical predictions, indicating that the non-universal superconducting gap structure in iron-pnictides can be interpreted in the framework of \u003ci\u003eA\u003c\/i\u003e\u003csub\u003e1g\u003c\/sub\u003e symmetry. This result imposes a strong constraint on the pairing mechanism of iron-based superconductors.\u003c\/p\u003e\u003cp\u003eThe author also shows clear evidence for the quantum criticality inside the superconducting dome from the absolute zero-temperature penetration depth measurements as a function of chemical composition. A sharp peak of the penetration depth at a certain composition demonstrates pronounced quantum fluctuations associated with the QCP, which separates two distinct superconducting phases. This gives the first convincing signature of a second-order quantum phase transition deep inside the superconducting dome, whichmay address a key question on the general phase diagram of unconventional superconductivity in the vicinity of a QCP.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 2016-08-23\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9784431563341\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/978-4-431-54294-0\u003c\/p\u003e \u003cp\u003eDimensions: 235cm x155cm\u003c\/p\u003e \u003cp\u003ePages: 125\u003c\/p\u003e ","brand":"Springer Japan","offers":[{"title":"Default Title","offer_id":47393660207244,"sku":"9784431563341","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9784431563341.jpg?v=1775769108","url":"https:\/\/fh90cf-fv.myshopify.com\/products\/9784431563341","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}