Magnetic studies reveal near-perfect paramagnetism in the molecular semiconductor vanadyl phthalocyanine (C32H16N8VO)
文献类型：期刊论文
| 作者 | Wang, Zhengjun1; Pi, Li2,3 ; Seehra, Mohindar S.1; Bindra, Jasleen4,5; van Tol, Hans4,5; Dalal, Naresh S.4,5
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| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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| 出版日期 | 2017-01-15 |
| 卷号 | 422期号:无页码:386-390 |
| 关键词 | Magnetic Susceptibility Paramagnetism Electron Paramagnetic Resonance Saturation Magnetization Magnetic Molecular Semiconductors |
| DOI | 10.1016/j.jmmm.2016.09.018 |
| 文献子类 | Article |
| 英文摘要 | Temperature (0.5-300 K) and magnetic field (H up to 90 kOe) dependences of the magnetization (M) of a powder sample of vanadyl phthalocyanine (VOPc) having the Phase Il-triclinic structure are measured and analyzed. The data of chi = M/H vs. T measured in H = 1 kOe fit the modified Curie-Weiss (CW) law,chi = chi o)+C/(T-theta), with C = 6.266 x 10(-4) emuK/gOe, theta = -0.1 K and,chi(o) = -9.3 x 10(-7) emu/gOe. The Curie constant C yields magnetic moment mu = 1.704 mu(B), S = 1/2, and g = 1.967 characteristic of VO2+ The magnitude of theta = -0.1 K signifying very weak inter -ion antiferromagnetic exchange coupling is supported by the analysis of the variable frequency (9.8-336 GHz) electron paramagnetic resonance data. The isothermal data of M vs. H at ten temperatures between 0.5 K and 300 K when plotted as M vs. H/ (T+0.1) collapses on to a single curve given by M = M-o tanh {g/mu H-B/[2K(B)(T+0.1)]} with M-o = Ng mu S-B = 9.48 emu/g expected for S = 1/2 system, thus signifying near perfect paramagnetism in VOPc. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | RESONANCE ; EXCHANGE ; ORIENTATION ; LINEWIDTHS |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000396492300057 |
| 资助机构 | National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida ; State of Florida |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/32864]  |
| 专题 | 合肥物质科学研究院_中科院强磁场科学中心 |
| 作者单位 | 1.West Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA 2.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230031, Peoples R China 4.Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA 5.Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA |
| 推荐引用方式 GB/T 7714 | Wang, Zhengjun,Pi, Li,Seehra, Mohindar S.,et al. Magnetic studies reveal near-perfect paramagnetism in the molecular semiconductor vanadyl phthalocyanine (C32H16N8VO)[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2017,422(无):386-390. |
| APA | Wang, Zhengjun,Pi, Li,Seehra, Mohindar S.,Bindra, Jasleen,van Tol, Hans,&Dalal, Naresh S..(2017).Magnetic studies reveal near-perfect paramagnetism in the molecular semiconductor vanadyl phthalocyanine (C32H16N8VO).JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,422(无),386-390. |
| MLA | Wang, Zhengjun,et al."Magnetic studies reveal near-perfect paramagnetism in the molecular semiconductor vanadyl phthalocyanine (C32H16N8VO)".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 422.无(2017):386-390. |
入库方式： OAI收割
来源：合肥物质科学研究院
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