Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

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Magnetic properties of the Zn-doped Haldane-gap material NENB
Cizmar, E.; Ozerov, M.; Wosnitza, J.; Zvyagin, S. A.; Krzystek, J.; Landee, C. P.; Landry, B. R.; Turnbull, M. M.; Wikaira, J. L.;
Experimental studies of the spin-1 Haldane-chain material [Ni(C2H8N2)2NO2](BF4) (NENB) doped with diamagnetic Zn(II) ions in a range up to nominally 5% by means of the magnetic-susceptibility and the electron-spin resonance (ESR) techniques are reported. The presence of fractional S = 1/2 chain-end states, revealed by ESR and susceptibility measurements is found to be responsible for spin-glass freezing effects. It is suggested that a higher doping with Zn ions suppresses the spin-glass behaviour by creating shorter and isolated chain fragments.
  • Open Access LogoJournal of Physics: Conference Series 150(2009), 042017

Publ.-Id: 12656 - Permalink