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Single-Crystal Growth of Ba<sub>1−</sub><i><sub>x</sub></i>K<i><sub>x</sub></i>Fe<sub>2</sub>As<sub>2</sub> by KAs Self-Flux Method
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- Kunihiro Kihou
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
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- Taku Saito
- Department of Physics, Chiba University, Chiba 263-8522, Japan
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- Kay Fujita
- Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara 252-5258, Japan
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- Shigeyuki Ishida
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
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- Masamichi Nakajima
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
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- Kazumasa Horigane
- Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara 252-5258, Japan
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- Hideto Fukazawa
- Department of Physics, Chiba University, Chiba 263-8522, Japan
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- Yoh Kohori
- Department of Physics, Chiba University, Chiba 263-8522, Japan
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- Shin-ichi Uchida
- Department of Physics, Tokyo University, Bunkyo, Tokyo 113-0033, Japan
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- Jun Akimitsu
- Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara 252-5258, Japan
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- Akira Iyo
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
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- Chul-Ho Lee
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
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- Hiroshi Eisaki
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
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Description
Single crystals of Ba1−xKxFe2As2 with 0.15 ≤ x ≤ 1 have been successfully synthesized by a KAs self-flux method. The potassium (K) concentration x of the grown crystals was systematically changed by changing the mixing ratio of Ba to Fe in the starting materials. The crystals have flat surfaces corresponding to the crystallographic (001) planes, whose planar dimensions increase with decreasing thickness when x increases. The superconducting transition temperature systematically changes with x, ranging from 38 K at x = 0.4 to 3.4 K at x = 1.0, in good agreement with the results for polycrystalline samples.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 85 (3), 034718-, 2016-03-15
Physical Society of Japan
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Details 詳細情報について
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- CRID
- 1360284924858256512
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- NII Article ID
- 210000133877
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- ISSN
- 13474073
- 00319015
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- Article Type
- journal article
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- Data Source
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- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE