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

Research output: Contribution to journalArticle

50 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 languageEnglish
Article number205108
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume82
Issue number20
DOIs
Publication statusPublished - Nov 8 2010

Fingerprint

Fermi level
narrowband
periodic variations
signatures
Photoelectron spectroscopy
Electronic structure
Lasers
photoelectric emission
occurrences
electronic structure
temperature dependence
probes
Temperature
spectroscopy
lasers

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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Signature of hidden order and evidence for periodicity modification in URu2 Si2. / Yoshida, Rikiya; Nakamura, Yoshiaki; Fukui, Masaki; Haga, Yoshinori; Yamamoto, Etsuji; Onuki, Yoshichika; Okawa, Mario; Shin, Shik; Hirai, Masaaki; Muraoka, Yuji; Yokoya, Takayoshi.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 82, No. 20, 205108, 08.11.2010.

Research output: Contribution to journalArticle

Yoshida, Rikiya ; Nakamura, Yoshiaki ; Fukui, Masaki ; Haga, Yoshinori ; Yamamoto, Etsuji ; Onuki, Yoshichika ; Okawa, Mario ; Shin, Shik ; Hirai, Masaaki ; Muraoka, Yuji ; Yokoya, Takayoshi. / Signature of hidden order and evidence for periodicity modification in URu2 Si2. In: Physical Review B - Condensed Matter and Materials Physics. 2010 ; Vol. 82, No. 20.
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AU - Onuki, Yoshichika

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