Manipulating surface magnetic order in iron telluride

Christopher Trainer, Chi M. Yim, Christoph Heil, Feliciano Giustino, Dorina Croitori, Vladimir Tsurkan, Alois Loidl, Efrain E. Rodriguez, Chris Stock, Peter Wahl

Research output: Contribution to journalArticle

Abstract

Control of emergent magnetic orders in correlated electron materials promises new opportunities for applications in spintronics. For their technological exploitation, it is important to understand the role of surfaces and interfaces to other materials and their impact on the emergent magnetic orders. Here, we demonstrate for iron telluride, the nonsuperconducting parent compound of the iron chalcogenide superconductors, determination and manipulation of the surface magnetic structure by low-temperature spin-polarized scanning tunneling microscopy. Iron telluride exhibits a complex structural and magnetic phase diagram as a function of interstitial iron concentration. Several theories have been put forward to explain the different magnetic orders observed in the phase diagram, which ascribe a dominant role either to interactions mediated by itinerant electrons or to local moment interactions. Through the controlled removal of surface excess iron, we can separate the influence of the excess iron from that of the change in the lattice structure.
Original languageEnglish
Article numbereaav3478
Pages (from-to)eaav3478
Number of pages7
JournalScience Advances
Volume5
Issue number3
DOIs
Publication statusPublished - 2019

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fields of Expertise

  • Advanced Materials Science

Fingerprint Dive into the research topics of 'Manipulating surface magnetic order in iron telluride'. Together they form a unique fingerprint.

Cite this