کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1874556 | 1530966 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystal Structure of Pt-doped IrTe2 Superconductor
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
IrTe2 has a trigonal CdI2-type structure which consists of stacked layers of triangular Ir lattices sandwiched between Te layers with octahedral coordination. Pt-doping prevents a first-order structural phase transition to a monoclinic structure at 250Â K, and induces superconductivity at 2.8Â K. When superconductivity is exhibited, it competes with the structural phase transition. We performed single-crystal X-ray diffraction to investigate the relationship between superconductivity and the structural change by Pt-doping. Pt was substituted at the Ir site, and was not likely to be intercalated between the Te layers. With increasing Pt- doping content, the degree of the distortion of the IrTe6 octahedron increased and the thickness of the IrTe2 layer decreased although the Ir-Te distance hardly changed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Procedia - Volume 58, 2014, Pages 90-93
Journal: Physics Procedia - Volume 58, 2014, Pages 90-93
نویسندگان
Takashi Mochiku, Yoshitaka Matsushita, Akira Sato, Yuita Fujisawa, Kei Igarashi, Tadashi Machida, Hideaki Sakata, Kazuto Hirata,