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Commensurate versus incommensurate charge ordering near the superconducting dome in Ir1−xPtxTe2 revealed by resonant x-ray scattering
https://repo.qst.go.jp/records/49166
https://repo.qst.go.jp/records/491668bacc1a2-36ff-4b00-b6d2-04426220c6cf
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-09-07 | |||||
| タイトル | ||||||
| タイトル | Commensurate versus incommensurate charge ordering near the superconducting dome in Ir1−xPtxTe2 revealed by resonant x-ray scattering | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Takubo, K.
× Takubo, K.× Yamamoto, K.× Hirata, Y.× Wadati, H.× Mizokawa, T.× Sutarto, R.× He, F.× Ishii, K.× Yamasaki, Y.× Nakao, H.× Murakami, Y.× Matsuo, G.× Ishii, H.× Kobayashi, M.× Kudo, K.× Nohara, M.× 石井 賢司 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The electronic-structural modulations of Ir1−xPtxTe2 (0 <= x <= 0.12) have been examined by resonant elastic x-ray scattering (REXS) and resonant inelastic x-ray scattering (RIXS) techniques at both the Ir and Te edges. Charge-density-wave-like superstructures with wave vectors of Q = (1/5 0 −1/5), (1/8 0 −1/8), and (1/6 0 −1/6) are observed on the same sample of IrTe2 at the lowest temperature, the patterns of which are controlled by the cooling speeds. In contrast, superstructures around Q = (1/5 0 −1/5) are observed for doped samples (0.02 <= x <=0.05). The superstructure reflections persist to higher Pt substitution than previously assumed, demonstrating that a charge-density wave (CDW) can coexist with superconductivity. The analysis of the energy-dependent REXS and RIXS line shape reveals the importance of the Te 5p state rather than the Ir 5d states in the formation of the spatial modulation of these systems. The phase diagram reexamined in this work suggests that the CDW incommensurability may correlate with the emergence of superconducting states such as CuxTiSe2 and LixTaS2. | |||||
| 書誌情報 |
Physical Review B 巻 97, 号 20, p. 205142-1-205142-9, 発行日 2018-06 |
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| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2469-9950 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevB.97.205142 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.205142 | |||||
| 関連名称 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.205142 | |||||
