Signature of hidden order and evidence for periodicity modification in URu2 Si2

Rikiya Yoshida; Yoshiaki Nakamura; Masaki Fukui; Yoshinori Haga; Etsuji Yamamoto; Yoshichika Onuki; Mario Okawa; Shik Shin; Masaaki Hirai; Yuji Muraoka; Takayoshi Yokoya

doi:10.1103/PhysRevB.82.205108

Signature of hidden order and evidence for periodicity modification in URu₂ Si₂

Rikiya Yoshida^*, Yoshiaki Nakamura, Masaki Fukui, Yoshinori Haga, Etsuji Yamamoto, Yoshichika Onuki, Mario Okawa, Shik Shin, Masaaki Hirai, Yuji Muraoka, Takayoshi Yokoya

^*Corresponding author for this work

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

62 Citations (Scopus)

Abstract

The detail of electronic structures near the Fermi level in URu₂ Si₂ has been investigated employing state-of-art laser angle-resolved photoemission spectroscopy. The observation of a narrow dispersive band near the Fermi level in the ordered state as well as its absence in a Rh-substituted sample strongly suggest that the emergence of the narrow band is a clear signature of the hidden-order transition. The temperature dependence of the narrow band, which appears at the onset of the hidden-order transition, invokes the occurrence of periodicity modification in the ordered state, which is shown for the first time by any spectroscopic probe. We compare our data to other previous studies and discuss possible implications.

Original language	English
Article number	205108
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevB.82.205108
Publication status	Published - 2010 Nov 8
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.82.205108

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abstract = "The detail of electronic structures near the Fermi level in URu2 Si2 has been investigated employing state-of-art laser angle-resolved photoemission spectroscopy. The observation of a narrow dispersive band near the Fermi level in the ordered state as well as its absence in a Rh-substituted sample strongly suggest that the emergence of the narrow band is a clear signature of the hidden-order transition. The temperature dependence of the narrow band, which appears at the onset of the hidden-order transition, invokes the occurrence of periodicity modification in the ordered state, which is shown for the first time by any spectroscopic probe. We compare our data to other previous studies and discuss possible implications.",

author = "Rikiya Yoshida and Yoshiaki Nakamura and Masaki Fukui and Yoshinori Haga and Etsuji Yamamoto and Yoshichika Onuki and Mario Okawa and Shik Shin and Masaaki Hirai and Yuji Muraoka and Takayoshi Yokoya",

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T1 - Signature of hidden order and evidence for periodicity modification in URu2 Si2

AU - Yoshida, Rikiya

AU - Nakamura, Yoshiaki

AU - Fukui, Masaki

AU - Haga, Yoshinori

AU - Yamamoto, Etsuji

AU - Onuki, Yoshichika

AU - Okawa, Mario

AU - Shin, Shik

AU - Hirai, Masaaki

AU - Muraoka, Yuji

AU - Yokoya, Takayoshi

PY - 2010/11/8

Y1 - 2010/11/8

N2 - The detail of electronic structures near the Fermi level in URu2 Si2 has been investigated employing state-of-art laser angle-resolved photoemission spectroscopy. The observation of a narrow dispersive band near the Fermi level in the ordered state as well as its absence in a Rh-substituted sample strongly suggest that the emergence of the narrow band is a clear signature of the hidden-order transition. The temperature dependence of the narrow band, which appears at the onset of the hidden-order transition, invokes the occurrence of periodicity modification in the ordered state, which is shown for the first time by any spectroscopic probe. We compare our data to other previous studies and discuss possible implications.

AB - The detail of electronic structures near the Fermi level in URu2 Si2 has been investigated employing state-of-art laser angle-resolved photoemission spectroscopy. The observation of a narrow dispersive band near the Fermi level in the ordered state as well as its absence in a Rh-substituted sample strongly suggest that the emergence of the narrow band is a clear signature of the hidden-order transition. The temperature dependence of the narrow band, which appears at the onset of the hidden-order transition, invokes the occurrence of periodicity modification in the ordered state, which is shown for the first time by any spectroscopic probe. We compare our data to other previous studies and discuss possible implications.

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Signature of hidden order and evidence for periodicity modification in URu₂ Si₂

Abstract

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