| Автор | de Jong, S. |
| Автор | van Heumen, E. |
| Автор | Thirupathaiah, S. |
| Автор | Huisman, R. |
| Автор | Massee, F. |
| Автор | Goedkoop, J. B. |
| Автор | Ovsyannikov, R. |
| Автор | Fink, J. |
| Автор | Dürr, H. A. |
| Автор | Gloskovskii, A. |
| Автор | Jeevan, H. S. |
| Автор | Gegenwart, P. |
| Автор | Erb, A. |
| Автор | Patthey, L. |
| Автор | Shi, M. |
| Автор | Follath, R. |
| Автор | Varykhalov, A. |
| Автор | Golden, M. S. |
| Дата выпуска | 2010-01-01 |
| dc.description | Using angle-resolved photoemission it is shown that the low-lying electronic states of the iron pnictide parent compound EuFe<sub>2</sub>As<sub>2</sub> are strongly modified in the magnetically ordered, low-temperature, orthorhombic state compared to the tetragonal, paramagnetic case above the spin density wave transition temperature. Back-folded bands, reflected in the orthorhombic/anti-ferromagnetic Brillouin zone boundary hybridize strongly with the non-folded states, leading to the opening of energy gaps. As a direct consequence, the large Fermi surfaces of the tetragonal phase fragment, the low-temperature Fermi surface being comprised of small droplets, built up of electron- and hole-like sections. These high-resolution ARPES data are therefore in keeping with quantum oscillation and optical data from other undoped pnictide parent compounds. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | Europhysics Letters Association |
| Название | Droplet-like Fermi surfaces in the anti-ferromagnetic phase of EuFe<sub>2</sub>As<sub>2</sub>, an Fe-pnictide superconductor parent compound |
| Тип | lett |
| DOI | 10.1209/0295-5075/89/27007 |
| Electronic ISSN | 1286-4854 |
| Print ISSN | 0295-5075 |
| Журнал | EPL (Europhysics Letters) |
| Том | 89 |
| Первая страница | 27007 |
| Последняя страница | 27012 |
| Аффилиация | de Jong, S.; Van der Waals-Zeeman Institute, University of Amsterdam - NL-1018XE Amsterdam, The Netherlands, EU |
| Аффилиация | van Heumen, E.; Van der Waals-Zeeman Institute, University of Amsterdam - NL-1018XE Amsterdam, The Netherlands, EU |
| Аффилиация | Thirupathaiah, S.; Helmholtz Zentrum Berlin - Albert-Einstein-Strasse 15, 12489 Berlin, Germany, EU |
| Аффилиация | Huisman, R.; Van der Waals-Zeeman Institute, University of Amsterdam - NL-1018XE Amsterdam, The Netherlands, EU |
| Аффилиация | Massee, F.; Van der Waals-Zeeman Institute, University of Amsterdam - NL-1018XE Amsterdam, The Netherlands, EU |
| Аффилиация | Goedkoop, J. B.; Van der Waals-Zeeman Institute, University of Amsterdam - NL-1018XE Amsterdam, The Netherlands, EU |
| Аффилиация | Ovsyannikov, R.; Helmholtz Zentrum Berlin - Albert-Einstein-Strasse 15, 12489 Berlin, Germany, EU |
| Аффилиация | Fink, J.; Helmholtz Zentrum Berlin - Albert-Einstein-Strasse 15, 12489 Berlin, Germany, EU; Leibniz Institute of Solid and Materials Research Dresden - P.O. Box 270116, D-01171, Dresden, Germany, EU |
| Аффилиация | Dürr, H. A.; Helmholtz Zentrum Berlin - Albert-Einstein-Strasse 15, 12489 Berlin, Germany, EU |
| Аффилиация | Gloskovskii, A.; Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität 55099 Mainz, Germany, EU |
| Аффилиация | Jeevan, H. S.; I. Physikalisches Institut, Georg-August-Universität - Göttingen 37077, Germany, EU |
| Аффилиация | Gegenwart, P.; I. Physikalisches Institut, Georg-August-Universität - Göttingen 37077, Germany, EU |
| Аффилиация | Erb, A.; Walther-Meissner-Institut - Walther-Meiß ner Strasse 8, 85748 Garching, Germany, EU |
| Аффилиация | Patthey, L.; Paul Scherrer Institut, Swiss Light Source - 5232 Villigen, Switzerland |
| Аффилиация | Shi, M.; Paul Scherrer Institut, Swiss Light Source - 5232 Villigen, Switzerland |
| Аффилиация | Follath, R.; Helmholtz Zentrum Berlin - Albert-Einstein-Strasse 15, 12489 Berlin, Germany, EU |
| Аффилиация | Varykhalov, A.; Helmholtz Zentrum Berlin - Albert-Einstein-Strasse 15, 12489 Berlin, Germany, EU |
| Аффилиация | Golden, M. S.; Van der Waals-Zeeman Institute, University of Amsterdam - NL-1018XE Amsterdam, The Netherlands, EU |
| Выпуск | 2 |
