TY - JOUR
T1 - Control of the Spin Dynamics of Single-Molecule Magnets by using a Quasi One-Dimensional Arrangement
AU - Katoh, Keiichi
AU - Yamashita, Satoshi
AU - Yasuda, Nobuhiro
AU - Kitagawa, Yasutaka
AU - Breedlove, Brian K.
AU - Nakazawa, Yasuhiro
AU - Yamashita, Masahiro
N1 - Funding Information:
This work was financially supported by a Grant-in-Aid for Young Scientists (B) (grant No. 24750119) and Scientific Research (C) (grant No. 15K05467) and Grant-in-Aid for Scientific Research (S) (Grant No. 20225003) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) and CREST(JPMJCR12L3), JST, Japan.
Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/7/20
Y1 - 2018/7/20
N2 - Magnetic dipole interactions are dominate in quasi one-dimensional (1D) molecular magnetic materials, in which TbNcPc units (Tb3+=terbium(III) ion, Nc2−=naphthalocyaninato, Pc2−=phthalocyaninato) adopt a structure similar to TbPc2 single-molecule magnets (SMMs). The magnetic properties of the [TbNcPc]0/+ (neutral 1 and cationic 2) with 1D structures are significantly different from those of a magnetically diluted sample (3). In particular, the magnetic relaxation time (τ) of 2 in the low-temperature region is five orders of magnitude slower than that of 3. Furthermore, the coercivity (HC) of 2 remained up to about 20 K. The single-ion anisotropy of Tb3+ ions in a 1D structure and the magnetic dipole interactions acting among molecules determines the direction of the magnetic properties. These results show that the spin dynamics can be improved by manipulating the arrangement of SMMs in the solid state.
AB - Magnetic dipole interactions are dominate in quasi one-dimensional (1D) molecular magnetic materials, in which TbNcPc units (Tb3+=terbium(III) ion, Nc2−=naphthalocyaninato, Pc2−=phthalocyaninato) adopt a structure similar to TbPc2 single-molecule magnets (SMMs). The magnetic properties of the [TbNcPc]0/+ (neutral 1 and cationic 2) with 1D structures are significantly different from those of a magnetically diluted sample (3). In particular, the magnetic relaxation time (τ) of 2 in the low-temperature region is five orders of magnitude slower than that of 3. Furthermore, the coercivity (HC) of 2 remained up to about 20 K. The single-ion anisotropy of Tb3+ ions in a 1D structure and the magnetic dipole interactions acting among molecules determines the direction of the magnetic properties. These results show that the spin dynamics can be improved by manipulating the arrangement of SMMs in the solid state.
KW - magnetic dipole interaction
KW - one-dimensional structure
KW - single-molecule magnets
KW - spin blocking phenomenon
KW - spin dynamics
UR - http://www.scopus.com/inward/record.url?scp=85046546068&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046546068&partnerID=8YFLogxK
U2 - 10.1002/anie.201803161
DO - 10.1002/anie.201803161
M3 - Article
C2 - 29665263
AN - SCOPUS:85046546068
SN - 1433-7851
VL - 57
SP - 9262
EP - 9267
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 30
ER -