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T

T. Ishikawa

Researcher at Tokyo Institute of Technology

Publications -  27
Citations -  3372

T. Ishikawa is an academic researcher from Tokyo Institute of Technology. The author has contributed to research in topics: Photoexcitation & Chemistry. The author has an hindex of 10, co-authored 22 publications receiving 3058 citations.

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Lanthanide Double-Decker Complexes Functioning as Magnets at the Single-Molecular Level

TL;DR: Double-decker phthalocyanine complexes with Tb3+ or Dy3+ showed slow magnetization relaxation as a single-molecular property and a significant temperature rise results from a mechanism in the relaxation process different from that in the transition-metal-cluster SMMs.
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Mononuclear Lanthanide Complexes with a Long Magnetization Relaxation Time at High Temperatures: A New Category of Magnets at the Single-Molecular Level

TL;DR: In this article, an alternating current (ac) magnetic susceptibility and magnetization hysteresis loop measurements have been carried out for anionic bis(phthalocyaninato)terbium and bis (phthalocyclichenato)dysprosium and it has been found that the magnetization relaxation in the Tb complex is dominated by the two-phonon Orbach process in the temperature range 25−40 K and direct or Raman process below 25 K.
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Upward temperature shift of the intrinsic phase lag of the magnetization of Bis(phthalocyaninato)terbium by ligand oxidation creating an S = 1/2 spin.

TL;DR: The ac susceptibility measurements on the complex with octa(dodecoxy)-substituted Pc ligand proved that the significant rise of the temperatures occurs as an intrinsic single-molecular property of the complex possessing both J = 6 and S = (1)/(2) systems, and is not due to long-range magnetic order or interactions between adjacent unpaired pi-electrons.