絞り込み

18451

広告

「核ごみ」国、初の住民説明会 理解求める 北海道・神恵内村 (毎日新聞)

高レベル放射性廃棄物(核のごみ)最終処分場の選定に向けた文献調査応募の動きがある北海道神恵内(かもえない)村で26日夜、資源エネルギー庁と原子力発電環境整備機構...

  1. 「日韓交流おまつり」初のオンライン開催 ...
  2. [医学] HIV感染の恐れが大きい人の1...
  3. [医学] PTEN欠損胆管細胞癌にプロテ...
  4. [医学] α1抗トリプシン欠乏変異の人が...

ニュース一覧

スターを付ける スターを付ける     (12view , 0users)
The interplay between unconventional Cooper pairing and quantum states associated with atomic scale defects is a frontier of research with many open questions. So far, only a few of the high-temperature superconductors allow this intricate physics to be studied in a widely tunable way. We use scanning tunneling microscopy to image the electronic impact of Co atoms on the ground state of the LiFe_{1-x}Co_{x}As system. We observe that impurities progressively suppress the global superconducting gap and introduce low energy states near the gap edge, with the superconductivity remaining in the strong-coupling limit. Unexpectedly, the fully opened gap evolves into a nodal state before the Cooper pair coherence is fully destroyed. Our systematic theoretical analysis shows that these new observations can be quantitatively understood by the nonmagnetic Born-limit scattering effect in an s±-wave superconductor, unveiling the driving force of the superconductor to metal quantum phase transition.
PMID: 31809171 [PubMed - in process]
印刷用ページを開く Endnote用テキストダウンロード