Manipulating surface magnetic order in iron telluride

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...

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Main Authors: Trainer, C, Yim, C, Heil, C, Giustino, F, Croitori, D, Tsurkan, V, Loidl, A, Rodriguez, E, Stock, C, Wahl, P
Format: Journal article
Language:English
Published: American Association for the Advancement of Science 2019
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author Trainer, C
Yim, C
Heil, C
Giustino, F
Croitori, D
Tsurkan, V
Loidl, A
Rodriguez, E
Stock, C
Wahl, P
author_facet Trainer, C
Yim, C
Heil, C
Giustino, F
Croitori, D
Tsurkan, V
Loidl, A
Rodriguez, E
Stock, C
Wahl, P
author_sort Trainer, C
collection OXFORD
description 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.
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spelling oxford-uuid:7b610147-a7a3-462f-9fce-45994d6eb8802022-03-26T20:50:14ZManipulating surface magnetic order in iron tellurideJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7b610147-a7a3-462f-9fce-45994d6eb880EnglishSymplectic Elements at OxfordAmerican Association for the Advancement of Science2019Trainer, CYim, CHeil, CGiustino, FCroitori, DTsurkan, VLoidl, ARodriguez, EStock, CWahl, PControl 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.
spellingShingle Trainer, C
Yim, C
Heil, C
Giustino, F
Croitori, D
Tsurkan, V
Loidl, A
Rodriguez, E
Stock, C
Wahl, P
Manipulating surface magnetic order in iron telluride
title Manipulating surface magnetic order in iron telluride
title_full Manipulating surface magnetic order in iron telluride
title_fullStr Manipulating surface magnetic order in iron telluride
title_full_unstemmed Manipulating surface magnetic order in iron telluride
title_short Manipulating surface magnetic order in iron telluride
title_sort manipulating surface magnetic order in iron telluride
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