Real-space imaging of the atomic-scale magnetic structure of Fe1+yTe

Mostafa Enayat; Zhixiang Sun; Udai Raj Singh; Rama Krishna Prasad Aluru; Stefan Schmaus; Alexander Yaresko; Yong Liu; Chengtian Lin; Vladimir Tsurkan; Alois Loidl; Joachim Deisenhofer; Peter Wahl

doi:10.1126/science.1251682

Real-space imaging of the atomic-scale magnetic structure of Fe_1+yTe

Mostafa Enayat, Zhixiang Sun, Udai Raj Singh, Rama Krishna Prasad Aluru, Stefan Schmaus, Alexander Yaresko, Yong Liu, Chengtian Lin, Vladimir Tsurkan, Alois Loidl, Joachim Deisenhofer, Peter Wahl

Research output: Contribution to journal › Article › peer-review

Abstract

Spin-polarized scanning tunneling microscopy (SP-STM) has been used extensively to study magnetic properties of nanostructures. Using SP-STM to visualize magnetic order in strongly correlated materials on an atomic scale is highly desirable, but challenging. We achieved this goal in iron tellurium (Fe_1+yTe), the nonsuperconducting parent compound of the iron chalcogenides, by using a STM tip with a magnetic cluster at its apex. Our images of the magnetic structure reveal that the magnetic order in the monoclinic phase is a unidirectional stripe order; in the orthorhombic phase at higher excess iron concentration (y > 0.12), a transition to a phase with coexisting magnetic orders in both directions is observed. It may be possible to generalize the technique to other high-temperature superconductor families, such as the cuprates.

Original language	English
Pages (from-to)	653-656
Number of pages	4
Journal	Science
Volume	345
Issue number	6197
Early online date	31 Jul 2014
DOIs	https://doi.org/10.1126/science.1251682
Publication status	Published - 8 Aug 2014

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© 2014. This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 31 July 2014, doi: 10.1126/science.1251682
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title = "Real-space imaging of the atomic-scale magnetic structure of Fe1+yTe",

abstract = "Spin-polarized scanning tunneling microscopy (SP-STM) has been used extensively to study magnetic properties of nanostructures. Using SP-STM to visualize magnetic order in strongly correlated materials on an atomic scale is highly desirable, but challenging. We achieved this goal in iron tellurium (Fe1+yTe), the nonsuperconducting parent compound of the iron chalcogenides, by using a STM tip with a magnetic cluster at its apex. Our images of the magnetic structure reveal that the magnetic order in the monoclinic phase is a unidirectional stripe order; in the orthorhombic phase at higher excess iron concentration (y > 0.12), a transition to a phase with coexisting magnetic orders in both directions is observed. It may be possible to generalize the technique to other high-temperature superconductor families, such as the cuprates.",

author = "Mostafa Enayat and Zhixiang Sun and Singh, \{Udai Raj\} and Aluru, \{Rama Krishna Prasad\} and Stefan Schmaus and Alexander Yaresko and Yong Liu and Chengtian Lin and Vladimir Tsurkan and Alois Loidl and Joachim Deisenhofer and Peter Wahl",

year = "2014",

month = aug,

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doi = "10.1126/science.1251682",

language = "English",

volume = "345",

pages = "653--656",

journal = "Science",

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T1 - Real-space imaging of the atomic-scale magnetic structure of Fe1+yTe

AU - Enayat, Mostafa

AU - Sun, Zhixiang

AU - Singh, Udai Raj

AU - Aluru, Rama Krishna Prasad

AU - Schmaus, Stefan

AU - Yaresko, Alexander

AU - Liu, Yong

AU - Lin, Chengtian

AU - Tsurkan, Vladimir

AU - Loidl, Alois

AU - Deisenhofer, Joachim

AU - Wahl, Peter

PY - 2014/8/8

Y1 - 2014/8/8

N2 - Spin-polarized scanning tunneling microscopy (SP-STM) has been used extensively to study magnetic properties of nanostructures. Using SP-STM to visualize magnetic order in strongly correlated materials on an atomic scale is highly desirable, but challenging. We achieved this goal in iron tellurium (Fe1+yTe), the nonsuperconducting parent compound of the iron chalcogenides, by using a STM tip with a magnetic cluster at its apex. Our images of the magnetic structure reveal that the magnetic order in the monoclinic phase is a unidirectional stripe order; in the orthorhombic phase at higher excess iron concentration (y > 0.12), a transition to a phase with coexisting magnetic orders in both directions is observed. It may be possible to generalize the technique to other high-temperature superconductor families, such as the cuprates.

AB - Spin-polarized scanning tunneling microscopy (SP-STM) has been used extensively to study magnetic properties of nanostructures. Using SP-STM to visualize magnetic order in strongly correlated materials on an atomic scale is highly desirable, but challenging. We achieved this goal in iron tellurium (Fe1+yTe), the nonsuperconducting parent compound of the iron chalcogenides, by using a STM tip with a magnetic cluster at its apex. Our images of the magnetic structure reveal that the magnetic order in the monoclinic phase is a unidirectional stripe order; in the orthorhombic phase at higher excess iron concentration (y > 0.12), a transition to a phase with coexisting magnetic orders in both directions is observed. It may be possible to generalize the technique to other high-temperature superconductor families, such as the cuprates.

UR - https://www.scopus.com/pages/publications/84905983361

U2 - 10.1126/science.1251682

DO - 10.1126/science.1251682

M3 - Article

SN - 0036-8075

VL - 345

SP - 653

EP - 656

JO - Science

JF - Science

IS - 6197

ER -

Real-space imaging of the atomic-scale magnetic structure of Fe_1+yTe

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Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems

Peter Wahl

Spectroscopic imaging STM study of the interplay between magnetism and superconductivity in iron-based superconductors

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Real-space imaging of the atomic-scale magnetic structure of Fe1+yTe

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Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems

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Spectroscopic imaging STM study of the interplay between magnetism and superconductivity in iron-based superconductors

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Real-space imaging of the atomic-scale magnetic structure of Fe_1+yTe