Can I read Singlet Ground State and Spin Gap in S=1/2 Kagome Antiferromagnet Rb$ 2$Cu$ 3$SnF$ {12}$ on EtoBox?

Singlet Ground State and Spin Gap in S=1/2 Kagome Antiferromagnet Rb$ 2$Cu$ 3$SnF$ {12}$ by Morita, K.; Yano, M.; Ono, T.; Tanaka, H.; Fujii, K.; Uekusa, H.; Narumi, Y.; Kindo, K. is a scholarly article available to read on EtoBox.

What is Singlet Ground State and Spin Gap in S=1/2 Kagome Antiferromagnet Rb$ 2$Cu$ 3$SnF$ {12}$ about?

We investigated the crystal structure of Rb$_2$Cu$_3$SnF$_{12}$ and its magnetic properties using single crystals. This compound is composed of Kagome layers of corner-sharing CuF$_{6}$ octahedra with a 2a x 2a enlarged cell as compared with the proper Kagome layer. Rb$_2$Cu$_3$SnF$_{12}$ is magnetically described as an $S$=1/2 modified Kagome antiferromagnet with four kinds of neighboring exchange interaction. From magnetic susceptibility and high-field magnetization measurements, it was found that the ground state is a disordered singlet with the spin gap, as predicted from a recent theory. Exact diagonalization for a 12-site Kagome cluster was performed to analyze the magnetic susceptibility, and individual exchange interactions were evaluated.

Author

Morita, K.; Yano, M.; Ono, T.; Tanaka, H.; Fujii, K.; Uekusa, H.; Narumi, Y.; Kindo, K.

Published

2008

Language

EN