Nuclear-Magnetic-Resonance Properties of the Staircase Kagomé Antiferromagnet PbCu 3 TeO 7
| العنوان: | Nuclear-Magnetic-Resonance Properties of the Staircase Kagomé Antiferromagnet PbCu 3 TeO 7 |
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| المؤلفون: | Peng-Shuai Wang, Xiaoli Dong, Weiqiang Yu, J. L. Zhang, Jun-Zhuang Cong, Fei Pang, J. Dai, Kui Jin, Yang Sun, S. S. Sun, Gen Yue |
| المصدر: | Chinese Physics Letters. 32:127503 |
| بيانات النشر: | IOP Publishing, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | NMR spectra database, Nuclear magnetic resonance, Materials science, Lattice (order), General Physics and Astronomy, Antiferromagnetism, Knight shift, Curie constant, Crystal structure, Hyperfine structure, Magnetic field |
| الوصف: | We report the first nuclear magnetic resonance (NMR) study on single crystals of staircase Kagome antiferromagnet PbCu3TeO7 (TN1 ~36 K). A Curie constant Θ ~ −140 K is obtained by a Curie–Weiss fit to the high-temperature Knight shift of 125Te. The hyperfine coupling constant is estimated to be 125Ahf = −67 kOe/μB, and a strong interlayer coupling among staircase Kagome planes is suggested with such a large hyperfine coupling, according to the lattice structure. The 63,65Cu NMR spectra are found by the zero-field (ZF) NMR at T = 2 K, and the internal hyperfine fields are estimated to be 10.3 T and 9.6 T, for Cu(1) and Cu(2) sites, respectively, in the lattice. A second type of ZF NMR signal with a large rf enhancement is also seen after field-cycling through a high magnetic field. |
| تدمد: | 1741-3540 0256-307X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b139fa629dfacdf15d8f6cb0d8cb785c https://doi.org/10.1088/0256-307x/32/12/127503 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........b139fa629dfacdf15d8f6cb0d8cb785c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17413540 0256307X |
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