Iron-based superconductors: magnetism, superconductivity and electronic structure (Review Article)

• Опубліковано в: Физика низких температур
• Дата: 2012
• ISSN: 0132-6414
• Автор: Kordyuk, A.A.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2012
• Теми: К 80-летию Виктора Валентиновича Еременко
• Онлайн доступ: https://nasplib.isofts.kiev.ua/handle/123456789/117609
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Iron-based superconductors: magnetism, superconductivity and electronic structure (Review Article) / A.A. Kordyuk // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1119-1134. — Бібліогр.: 173 назв. — англ.

Angle resolved photoemission spectroscopy (ARPES) reveals the features of the electronic structure of quasitwo-dimensional
 crystals, which are crucial for the formation of spin and charge ordering and determine the mechanisms
 of electron–electron interaction, including the superconducting pairing. The newly discovered ironbased
 superconductors (FeSC) promise interesting physics that stems, on one hand, from a coexistence of superconductivity
 and magnetism and, on the other hand, from complex multi-band electronic structure. In this review
 I want to give a simple introduction to the FeSC physics, and to advocate an opinion that all the complexity of
 FeSC properties is encapsulated in their electronic structure. For many compounds, this structure was determined
 in numerous ARPES experiments and agrees reasonably well with the results of band structure calculations.
 Nevertheless, the existing small differences may help to understand the mechanisms of the magnetic ordering
 and superconducting pairing in FeSC.