Direct Observation of Localized Spin Antiferromagnetic Transition in PdCrO2 by Angle-Resolved Photoemission Spectroscopy

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Title
Direct Observation of Localized Spin Antiferromagnetic Transition in PdCrO2 by Angle-Resolved Photoemission Spectroscopy
Author(s)
Han-Jin Noh; Jinwon Jeong; Bin Chang; Dahee Jeong; Hyun Sook Moon; En-Jin Cho; Jong Mok Ok; Jun Sung Kim; Kyoo Kim; B. I. Min; Han-Koo Lee; Jae-Young Kim; Byeong-Gyu Park; Hyeong-Do Kim; Seongsu Lee
Publication Date
2014-01
Journal
SCIENTIFIC REPORTS, v.4, no., pp.3680 -
Publisher
NATURE PUBLISHING GROUP
Abstract
We report the first case of the successful measurements of a localized spin antiferromagnetic transition in delafossite-type PdCrO2 by angle-resolved photoemission spectroscopy (ARPES). This demonstrates how to circumvent the shortcomings of ARPES for investigation of magnetism involved with localized spins in limited size of two-dimensional crystals or multi-layer thin films that neutron scattering can hardly study due to lack of bulk compared to surface. Also, our observations give direct evidence for the spin orderingpattern of Cr31 ions in PdCrO2 suggested by neutron diffraction and quantum oscillation measurements,and provide a strong constraint that has to be satisfied by a microscopic mechanism for the unconventional anomalous Hall effect recently reported in this system. (c)2014, Nature Publishing Group. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/1159
ISSN
2045-2322
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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