Details

Autor(en) / Beteiligte

• XU Min WANG Li-Min PENG Rui GE Qing-Qin CHEN Fei YE Zi-Rong ZHANG Yan CHEN Su-Di XIA Miao LIU Rong-Hua Arita M Shimada K. Namatame H. Taniguchi M. Matsunami M. Kimura S. SHI Ming CHEN Xian-Hui YIN Wei, Guo KU Wei XIE Bin-Ping FENG Dong-Lai

Titel

Electronic Structure Reconstruction across the Antiferromagnetic Transition in TaFe1.23Te3 Spin Ladder

Ist Teil von

• 中国物理快报：英文版, 2015-02 (2), p.127-130

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Employing the angle-resolved photoemission spectroscopy, we study the electronic structure of TaFe1.23Te3, a two-leg spin ladder compound with a novel antiferromagnetic ground state. Quasi-two-dimensional （2D） Fermi surface is observed, with sizable inter-ladder hopping. Moreover, instead of observing an energy gap at the Fermi surface in the antiferromagnetic state, we observe the shifts of various bands. Combining these observations with density-functional-theory calculations, we propose that the large scale reconstruction of the electronic structure, caused by the interactions between the coexisting itinerant electrons and local moments, is most likely the driving force of the magnetic transition. Thus TaFe1.23Te3 serves as a simpler platform that contains similar ingredients to the parent compounds of iron-based superconductors.