title: A series of 1D Dy(III) compound showing slow magnetic relaxation: synthesis, structure, and magnetic studies.
abstract: In this work, we present the synthesis, structure, and magnetic studies of three 1D homo-spin Dy(III) compounds in detail. For 1, one crystallography-independent Dy(III) site is contained and the coordination surrounding is a distorted square-antiprism geometry. Within 2, four crystallography-independent Dy(III) sites with largely distorted square-antiprism geometry are observed. As for 3, two crystallography-independent Dy(III) sites showing bicapped triangular-prism geometry are involved. The magnetic studies suggest weak ferromagnetic interactions for 1 and weak antiferromagnetic interactions for 2 and 3. Their dynamic magnetic properties are investigated by means of alternating current (ac) susceptibility measurement, revealing their slow magnetic relaxation. Moreover, a field-dependent ac signal is observed in 1, when by applying a static dc = 1000 Oe field, strong frequency-dependent ac signals and the peak of out-of-phase (χ'') can be clearly found. Ultimately, by fitting the Arrhenius law the energy barrier and relaxation time are estimated.
authors.affiliation: College of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, Jiangxi, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhu
authors.forename: Feng
authors.initials: F
authors.lastname: Luo
authors.forename: Yu-mei
authors.initials: YM
authors.lastname: Song
authors.forename: Hai-xiao
authors.initials: HX
authors.lastname: Huang
authors.forename: Gong-ming
authors.initials: GM
authors.lastname: Sun
authors.forename: Xiao-zhao
authors.initials: XZ
authors.lastname: Tian
authors.forename: Zi-Zun
authors.initials: ZZ
authors.lastname: Yuan
authors.forename: Zhen-wei
authors.initials: ZW
authors.lastname: Liao
authors.forename: Ming-biao
authors.initials: MB
authors.lastname: Luo
authors.forename: Shu-juan
authors.initials: SJ
authors.lastname: Liu
authors.forename: Wen-yuan
authors.initials: WY
authors.lastname: Xu
authors.forename: Xue-Feng
authors.initials: XF
authors.lastname: Feng