327 citations · 4.3k across the 88 of their papers we have counts for
5 papers · 1 filter
Far infrared study of the two dimensional dimer spin system SrCu_2(BO_3)_2
T. Room, U. Nagel, E. Lippmaa +3
Using far-infrared spectroscopy in magnetic fields up to 12T we have studied a two-dimensional dimer spin gap system SrCu_2(BO_3)_2. We found several infrared active modes in the d…
First evidence for charge ordering in NaVO from Raman spectroscopy
M. J. Konstantinovic, Z. V. Popovic, A. N. Vasil'ev +2
We argue on the basis of symmetry selection rules and Raman scattering spectra that NaVO undergoes a charge ordering phase transition at T=34 K. Such a transition is ch…
Direct observation of the multiple spin gap excitations in two-dimensional dimer system SrCu2(BO3)2
H Nojiri, H. Kageyama, Kenzo Onizuka +2
Various spin gap excitations have been observed in the two-dimensional dimer system SrCu_2(BO_3)_2 by means of submillimeter wave ESR. The zero-field energy gap of the lowest spin…
Nuclear spin-spin coupling in La_{2-x}Sr_{x}CuO_{4} studied by stimulated echo decay
S. Fujiyama, M. Takigawa, Y. Ueda +2
We have performed copper NQR experiments in high temperature superconductors YBa_{2}Cu_{4}O_{8}, YBa_{2}Cu_{3}O_{7}, and La_{2-x}Sr_{x}CuO_{4} (x=0.12 and 0.15), using the stimulat…
Coexistence of double alternating antiferromagnetic chains in (VO)_2P_2O_7 : NMR study
Jun Kikuchi, Kiyoichiro Motoya, Touru Yamauchi +1
Nuclear magnetic resonance (NMR) of 31P and 51V nuclei has been measured in a spin-1/2 alternating-chain compound (VO)_2P_2O_7. By analyzing the temperature variation of the 31P NM…