High-pressure synthesis of new filled skutterudite compounds Sr<i>T</i> ₄As₁₂ (<i>T</i> = Fe, Ru, Os)

• 西根, 康平

• 川村, 幸裕

• 林, 純一

• 関根, ちひろ

書誌事項

タイトル別名

• High-pressure synthesis of new filled skutterudite compounds SrT4As12 (T = Fe, Ru, Os)

抄録

We have succeeded in synthesizing samples of new filled skutterudite compounds SrT 4As12 (T = Fe, Ru, and Os) using a high-pressure synthesis technique. These compounds have lattice constants of 8.351, 8.521, and 8.561 Å, respectively. The physical properties of the compounds are reported for the first time. The temperature dependences of the electrical resistivity for SrT 4As12 (T = Fe, Ru, and Os) exhibit metallic behaviors. The electrical resistivity and magnetic measurements indicates that SrOs4As12 is a new superconductor with a transition temperature of 4.8 K. A broad maximum of magnetic susceptibility at around 50 K and a large electronic specific heat coefficient of 58 mJ mol−1 K−2 suggest that SrFe4As12 is a nearly ferromagnetic metal with spin fluctuations of Fe 3d electrons.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 56 (5S3), 05FB01-, 2017-04-03

  Japan Society of Applied Physics

キーワード

• General Physics and Astronomy
• Physics and Astronomy (miscellaneous)
• General Engineering

詳細情報

• CRID: 1050282676656092288
• NII論文ID: 120006529950
• NII論文ID: 210000147804
• NII書誌ID: AA12295836
• DOI: 10.7567/jjap.56.05fb01
• ISSN: 13474065
• ISSN: 00214922
• HANDLE: 10258/00009678
• Web Site: https://muroran-it.repo.nii.ac.jp/records/9726
• Web Site: http://stacks.iop.org/1347-4065/56/i=5S3/a=05FB01/pdf
• Web Site: http://stacks.iop.org/1347-4065/56/i=5S3/a=05FB01?key=crossref.d9a766556f4dd1f4b2f7fe614024f86d
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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