Angular-Resolved Magnetometry Beyond Triclinic Crystals Part II: Torque Magnetometry of Cp*ErCOT Single-Molecule Magnets | |
Perfetti, Mauro1; Cucinotta, Giuseppe1; Boulon, Marie-Emmanuelle1; El Hallak, Fadi2; Gao, Song3; Sessoli, Roberta1 | |
刊名 | CHEMISTRY-A EUROPEAN JOURNAL |
2014-10-20 | |
卷号 | 20期号:43页码:14051-14056 |
关键词 | Lanthanides Magnetic Anisotropy Single-molecule Magnets Torque Magnetometry |
ISSN号 | 0947-6539 |
DOI | 10.1002/chem.201404218 |
英文摘要 | The experimental investigation of the molecular magnetic anisotropy in crystals in which the magnetic centers are symmetry related, but do not have a parallel orientation has been approached by using torque magnetometry. A single crystal of the orthorhombic organometallic Cp*ErCOT [Cp*=pentamethylcyclopentadiene anion (C5Me5-); COT = cyclooctatetraenedianion (C8H82-)] single-molecule magnet, characterized by the presence of two nonparallel families of molecules in the crystal, has been investigated above its blocking temperature. The results confirm an Ising-type ani-otropy with the easy direction pointing along the pseudosymmetry axis of the complex, as previously suggested by out-of-equilibrium angular-resolved magnetometry. The use of torque magnetometry, not requiring the presence of magnetic hysteresis, proves to be even more powerful for these purposes than standard single-crystal magnetometry. Furthermore, exploiting the sensitivity and versatility of this technique, magnetic anisotropy has been investigated up to 150 K, providing additional information on the crystal-field splitting of the ground J multiplet of the Er-III ion. |
语种 | 英语 |
出版者 | WILEY-V C H VERLAG GMBH |
WOS记录号 | WOS:000343800700033 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/53057] |
专题 | 中国科学院化学研究所 |
通讯作者 | Sessoli, Roberta |
作者单位 | 1.Univ Florence, Dipartimento Chim Ugo Schiff, I-50019 Sesto Fiorentino, Italy 2.Univ Stuttgart, Phys Inst 1, D-70550 Stuttgart, Germany 3.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China |
推荐引用方式 GB/T 7714 | Perfetti, Mauro,Cucinotta, Giuseppe,Boulon, Marie-Emmanuelle,et al. Angular-Resolved Magnetometry Beyond Triclinic Crystals Part II: Torque Magnetometry of Cp*ErCOT Single-Molecule Magnets[J]. CHEMISTRY-A EUROPEAN JOURNAL,2014,20(43):14051-14056. |
APA | Perfetti, Mauro,Cucinotta, Giuseppe,Boulon, Marie-Emmanuelle,El Hallak, Fadi,Gao, Song,&Sessoli, Roberta.(2014).Angular-Resolved Magnetometry Beyond Triclinic Crystals Part II: Torque Magnetometry of Cp*ErCOT Single-Molecule Magnets.CHEMISTRY-A EUROPEAN JOURNAL,20(43),14051-14056. |
MLA | Perfetti, Mauro,et al."Angular-Resolved Magnetometry Beyond Triclinic Crystals Part II: Torque Magnetometry of Cp*ErCOT Single-Molecule Magnets".CHEMISTRY-A EUROPEAN JOURNAL 20.43(2014):14051-14056. |
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