Mesoscopic stripes in antiferromagnetic Fe chalcogenide probed by scanning photoelectron spectromicroscopy

Takashi Mizokawa; Markus Bendele; Alexei Barinov; Antonella Iadecola; Boby Joseph; Takashi Noji; Yoji Koike; Naurang L. Saini

doi:10.7566/JPSJ.85.033702

Mesoscopic stripes in antiferromagnetic Fe chalcogenide probed by scanning photoelectron spectromicroscopy

Takashi Mizokawa, Markus Bendele, Alexei Barinov, Antonella Iadecola, Boby Joseph, Takashi Noji, Yoji Koike, Naurang L. Saini

School of Advanced Science and Engineering

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

3 Citations (Scopus)

Abstract

We have performed scanning photoelectron spectromicroscopy measurements in the paramagnetic (PM) and the antiferromagnetic (AFM) phases of Fe_1+δTe (δ = 0.09). The spectromicroscopy images reveal stripe modulation of the electronic structure in the AFM monoclinic phase at low temperature, that disappears at high temperature in the PM phase. The stripes, running along the monoclinic crystal axis, are characterized by different density of states around the Γ point and near the Fermi level (E_F). Since the near E_F electronic states around the Γ point have strong electron-lattice coupling in Fe_1+δTe, the observed stripes are likely to be related to the strain modulation introduced by the monoclinic lattice distortion.

Original language	English
Article number	033702
Journal	journal of the physical society of japan
Volume	85
Issue number	3
DOIs	https://doi.org/10.7566/JPSJ.85.033702
Publication status	Published - 2016

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Mesoscopic stripes in antiferromagnetic Fe chalcogenide probed by scanning photoelectron spectromicroscopy",

abstract = "We have performed scanning photoelectron spectromicroscopy measurements in the paramagnetic (PM) and the antiferromagnetic (AFM) phases of Fe1+δTe (δ = 0.09). The spectromicroscopy images reveal stripe modulation of the electronic structure in the AFM monoclinic phase at low temperature, that disappears at high temperature in the PM phase. The stripes, running along the monoclinic crystal axis, are characterized by different density of states around the Γ point and near the Fermi level (EF). Since the near EF electronic states around the Γ point have strong electron-lattice coupling in Fe1+δTe, the observed stripes are likely to be related to the strain modulation introduced by the monoclinic lattice distortion.",

author = "Takashi Mizokawa and Markus Bendele and Alexei Barinov and Antonella Iadecola and Boby Joseph and Takashi Noji and Yoji Koike and Saini, {Naurang L.}",

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language = "English",

volume = "85",

journal = "Journal of the Physical Society of Japan",

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T1 - Mesoscopic stripes in antiferromagnetic Fe chalcogenide probed by scanning photoelectron spectromicroscopy

AU - Mizokawa, Takashi

AU - Bendele, Markus

AU - Barinov, Alexei

AU - Iadecola, Antonella

AU - Joseph, Boby

AU - Noji, Takashi

AU - Koike, Yoji

AU - Saini, Naurang L.

PY - 2016

Y1 - 2016

N2 - We have performed scanning photoelectron spectromicroscopy measurements in the paramagnetic (PM) and the antiferromagnetic (AFM) phases of Fe1+δTe (δ = 0.09). The spectromicroscopy images reveal stripe modulation of the electronic structure in the AFM monoclinic phase at low temperature, that disappears at high temperature in the PM phase. The stripes, running along the monoclinic crystal axis, are characterized by different density of states around the Γ point and near the Fermi level (EF). Since the near EF electronic states around the Γ point have strong electron-lattice coupling in Fe1+δTe, the observed stripes are likely to be related to the strain modulation introduced by the monoclinic lattice distortion.

AB - We have performed scanning photoelectron spectromicroscopy measurements in the paramagnetic (PM) and the antiferromagnetic (AFM) phases of Fe1+δTe (δ = 0.09). The spectromicroscopy images reveal stripe modulation of the electronic structure in the AFM monoclinic phase at low temperature, that disappears at high temperature in the PM phase. The stripes, running along the monoclinic crystal axis, are characterized by different density of states around the Γ point and near the Fermi level (EF). Since the near EF electronic states around the Γ point have strong electron-lattice coupling in Fe1+δTe, the observed stripes are likely to be related to the strain modulation introduced by the monoclinic lattice distortion.

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Mesoscopic stripes in antiferromagnetic Fe chalcogenide probed by scanning photoelectron spectromicroscopy

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