Review of NMR studies of nanoscale molecular magnets composed of   geometrically frustrated antiferromagnetic triangles

Yuji Furukawa

arXiv:1507.00374·cond-mat.str-el·December 21, 2016

Review of NMR studies of nanoscale molecular magnets composed of geometrically frustrated antiferromagnetic triangles

Yuji Furukawa

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TL;DR

This review summarizes NMR studies on three different nanoscale molecular magnets with geometrically frustrated AFM triangles, highlighting their unique structures and magnetic properties.

Contribution

It provides a comprehensive comparison of NMR results across three novel geometrically frustrated AFM systems with distinct configurations.

Findings

01

Identification of spin frustration effects in each system

02

Insights into local magnetic environments via NMR

03

Comparison of magnetic behaviors among different structures

Abstract

We present a comprehensive review of nuclear magnetic resonance (NMR) studies performed on three nanoscale molecular magnets with different configurations of geometrically frustrated antiferromagnetic (AFM) triangles, new spin frustration systems with different novel structures: (1) the isolated single AFM triangle K $_{6}$ [V $_{15}$ As $_{6}$ O $_{42}$ (H $_{2}$ O)] $\cdot$ 8H $_{2}$ O (in short V15), (2) the spin ball [Mo $_{72}$ Fe $_{30}$ O $_{252}$ (Mo $_{2}$ O $_{7}$ (H $_{2}$ O)) $_{2}$ (Mo $_{2}$ O $_{8}$ H $_{2}$ (H $_{2}$ O))(CH $_{3}$ COO) $_{12}$ (H $_{2}$ O) $_{91}$ ] $\cdot$ 150H $_{2}$ O (in short Fe30 spin ball), and (3) the twisted triangular spin tube [(CuCl $_{2}$ tachH) $_{3}$ Cl]Cl $_{2}$ (in short Cu3 spin tube).

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