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DOI | 10.1126/science.aav0652 |
Magnetic hysteresis up to 80 kelvin in a dysprosium metallocene single-molecule magnet | |
Guo, Fu-Sheng1; Day, Benjamin M.1,2; Chen, Yan-Cong3; Tong, Ming-Liang3; Mansikkamaki, Akseli4; Layfield, Richard A.1 | |
2018-12-21 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 362期号:6421页码:1400-+ |
文章类型 | Article |
语种 | 英语 |
国家 | England; Peoples R China; Finland |
英文摘要 | Single-molecule magnets (SMMs) containing only one metal center may represent the lower size limit for molecule-based magnetic information storage materials. Their current drawback is that all SMMs require liquid-helium cooling to show magnetic memory effects. We now report a chemical strategy to access the dysprosium metallocene cation [(Cp-iPr5)Dy(Cp*)](+) (Cp-iPr5, penta-iso-propylcyclopentadienyl; Cp*, pentamethylcyclopentadienyl), which displays magnetic hysteresis above liquid-nitrogen temperatures. An effective energy barrier to reversal of the magnetization of U-eff = 1541 wave number is also measured. The magnetic blocking temperature of T-B = 80 kelvin for this cation overcomes an essential barrier toward the development of nanomagnet devices that function at practical temperatures. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000453845000058 |
WOS关键词 | 2ND-ORDER PERTURBATION-THEORY ; BASIS-SETS ; BLOCKING ; SYMMETRY ; PSEUDOPOTENTIALS ; TEMPERATURE ; STRATEGIES ; REACTIVITY ; ENERGY ; ATOMS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200366 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Sussex, Sch Life Sci, Dept Chem, Falmer BN1 9QJ, England; 2.Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England; 3.Sun Yat Sen Univ, Sch Chem, Minist Educ, Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China; 4.Univ Jyvaskyla, Dept Chem, Nanosci Ctr, POB 35, FI-40014 Jyvaskyla, Finland |
推荐引用方式 GB/T 7714 | Guo, Fu-Sheng,Day, Benjamin M.,Chen, Yan-Cong,et al. Magnetic hysteresis up to 80 kelvin in a dysprosium metallocene single-molecule magnet[J]. SCIENCE,2018,362(6421):1400-+. |
APA | Guo, Fu-Sheng,Day, Benjamin M.,Chen, Yan-Cong,Tong, Ming-Liang,Mansikkamaki, Akseli,&Layfield, Richard A..(2018).Magnetic hysteresis up to 80 kelvin in a dysprosium metallocene single-molecule magnet.SCIENCE,362(6421),1400-+. |
MLA | Guo, Fu-Sheng,et al."Magnetic hysteresis up to 80 kelvin in a dysprosium metallocene single-molecule magnet".SCIENCE 362.6421(2018):1400-+. |
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