کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1820037 | 1525773 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Uniform mixing of high-Tc superconductivity and antiferromagnetism on a single CuO2 plane in five-layered cuprates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Uniform mixing of high-Tc superconductivity and antiferromagnetism on a single CuO2 plane in five-layered cuprates Uniform mixing of high-Tc superconductivity and antiferromagnetism on a single CuO2 plane in five-layered cuprates](/preview/png/1820037.png)
چکیده انگلیسی
We report systematic Cu-NMR studies on five-layered cuprates from under-doped HgBa2Ca4Cu5O12+δ (Hg-1245(UD)) to slightly overdoped Tl-1245(OVD), and compare with optimally-doped Hg-1245(OPT). In the under-doped Hg-1245(UD), antiferromagnetism (AFM) has been found to take place at TN = 290 K, exhibiting a large antiferromagnetic moment of 0.67-0.69 μB at three inner planes (IP's). These values are comparable to that reported for non-doped cuprates, suggesting that the IP's may be in a nearly non-doped regime. Most surprisingly, the AFM order is also detected with MAFM(OP) = 0.1 μB even at two outer planes (OP's) that are responsible for the onset of superconductivity (SC) with Tc = 72 K. The high-Tc SC at Tc = 72 K can uniformly coexist on a microscopic level with the AFM at OP's. This is the first microscopic evidence for the uniformly mixed phase of AFM and SC on a single CuO2 plane. Although, the AFM/SC mixed CuO2 planes are significantly separated by three non-doped AFM layers, the onset of AFM does not prevent the occurrence of SC with the high value of Tc = 72 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 460â462, Part 1, 1 September 2007, Pages 36-39
Journal: Physica C: Superconductivity and its Applications - Volumes 460â462, Part 1, 1 September 2007, Pages 36-39
نویسندگان
H. Mukuda, M. Abe, Y. Kitaoka, H. Kotegawa, K. Tokiwa, T. Watanabe, A. Iyo, H. Kito, Y. Tanaka, Y. Kodama,