Observation of Magnetodielectric Effect in a Dysprosium-Based Single-Molecule Magnet

Abstract

Materials that possess coupled magnetic and electric properties are of significant interest because of their potential use in next-generation magnetoelectric devices such as digital information storage. To date, the magnetoelectric materials that have been studied in-depth have been limited mainly to inorganic oxides such as perovskite oxides. Molecular materials are a promising alternative because their magnetic and electric elements can be combined together at the molecular level via relatively simple molecular designs. Here, we report the coupling of magnetic and electric properties through a magnetodielectric (MD) effect in a single-crystal sample, which is constructed from dysprosium(III) single-molecule magnets (SMMs). The MD effect originates from intrinsic spin-lattice coupling of the dysprosium(III) ion within the sample. This is the first observation of the MD effect in a SMM-based material, which could pave the way toward the synthesis of advanced materials that combine distinct magnetic and electric properties using molecular chemistry for use in molecular devices with nanoscale size.

Spin-reorientation-induced magnetodielectric coupling effects in two layered perovskite magnets

“…Among the known single-phase compounds exhibiting isothermal magnetodielectric effects, the MD of PEA-Mn is smaller than those of the outstanding inorganic oxides such as TbMnO 3 ( ref. 5 ) and DyMnO 3 , 14 is comparable with those of BiMnO 3 and a dysprosium-based single-molecule magnet, 6 , 30 and is much larger than those of Mn 3 O 4 , 43 TbFe 3 (BO 3 ) 4 ( ref. 44 ) and the metal–formate framework [(CH 3 ) 2 NH 2 ][Fe(HCOO) 3 ].…”

Probing a variation of the inverse-trans-influence in americium and lanthanide tribromide tris(tricyclohexylphosphine oxide) complexes

“…The known mer-LnBr 3 (OPcy 3 ) 3 (mer ¼ meridional; cy ¼ cyclohexyl, C 6 H 11 ) have been recently reported and give opportunity for extension to the trivalent actinides, though small lanthanides can speciate. 57,[64][65][66] There has been just one report of a single crystal Am-Br compound, AmBr 3 (THF) 4 . 67 The previously reported syntheses of mer-LnBr 3 (OPcy) 3 , (cy ¼ cyclohexyl, C 6 H 11 ) utilized boiling ethanol and describe the complexes as having low solubility.…”

Tuning slow magnetic relaxation behaviour in a {Dy2}-based one-dimensional chain via crystal field perturbation

“…[1][2][3] Comparing with transition metal ions, lanthanide (Ln) ions oen possess large orbital angular momentum and inherent magnetic anisotropy, which contribute to improving the effective energy barrier (U eff ) and blocking temperature (T B ) of SMM materials. [4][5][6][7] As a result, Ln ions particularly Dy(III) ion have become ideal candidates to construct SMM materials since Ishikawa et al reported the rst Ln-based SMM of [Pc 2 Ln] À $TBA + (Ln ¼ Tb or Dy, Pc ¼ dianion of phthalocyanine; TBA + ¼ N(C 4 H 9 ) 4 + ) in 2003. 8 Aer that, numerous Ln-based SMM materials including discrete Ln x (x $ 1) coordination clusters, chainlike, two dimensional and three dimensional coordination compounds have been prepared and investigated in detail.…”

“…In this context, we report two polyhydroxylamine-derived Schiff-base {Dy 2 }-based one dimensional chain compounds {[Dy 2 (H 3 L) 4 (OAc) 6 ]$2MeOH} n (1) and {[Dy 2 (H 3 L) 4 (OAc) 4 (NCS) 2 ]$ 2MeOH} n (2) featuring with similar structures. The different coordination groups of Dy(III) in 1 and 2 lead to different geometrical congurations and symmetries and coordination numbers of Dy(III) ions.…”