Formation of the S=1 paramagnetic centers in the bond-diluted spin-gap magnet

V. N. Glazkov; Yu. V. Krasnikova; D. Huvonen; A. Zheludev

doi:10.1088/0953-8984/28/20/206003

Formation of the S=1 paramagnetic centers in the bond-diluted spin-gap magnet

Strongly Correlated Electrons 2016-07-01 v1

Authors: V. N. Glazkov , Yu. V. Krasnikova , D. Huvonen , A. Zheludev

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Abstract

Electron spin resonance experiment reveals that non-magnetic bond doping of the spin-gap magnet (C $_4$ H $_{12}$ N $_2$ )Cu $_2$ Cl $_6$ (abbreviated PHCC) results in the formation of $S=1$ paramagnetic centers that dominate low-temperature ESR response. We have followed evolution of this signal with doping impurity content and have found that these centers concentration is quadratic over the impurity content. We also observe coexistence of the ESR responses from these local centers and from delocalized triplet excitations over certain temperature range.

Keywords

spin-gap magnet bond dilution paramagnetic centers electron spin resonance triplet excitations impurity doping low-temperature

Cite

@article{arxiv.1512.02405,
  title  = {Formation of the S=1 paramagnetic centers in the bond-diluted spin-gap magnet},
  author = {V. N. Glazkov and Yu. V. Krasnikova and D. Huvonen and A. Zheludev},
  journal= {arXiv preprint arXiv:1512.02405},
  year   = {2016}
}

Comments

submitted to JPCM

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