Tuning the spin Hamiltonian of NENP by external pressure: a neutron scattering study

I. A. Zaliznyak, D. C. Dender, C. Broholm +1

We report an inelastic neutron scattering study of antiferromagnetic spin dynamics in the Haldane chain compound Ni(C2H8N2)2NO2ClO4 (NENP) under external hydrostatic pressure P = 2…