New field-induced spin density wave phenomena from the Pauli terms in excitonic insulators A. Aperis, M. Georgiou, G. Roumpos, S. Tsonis, G. Varelogiannis and P. B. Littlewood EPL, 83 6 (2008) 67008 Published online: 15 September 2008 DOI: 10.1209/0295-5075/83/67008