Magnetic properties of the Zn-doped Haldane-gap material NENB


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 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 Logo Journal of Physics: Conference Series 150(2009), 042017

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Publ.-Id: 12656