93 citations · 935 across the 30 of their papers we have counts for
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Magnetic bound states in the quarter-filled ladder system }
P. Lemmens, M. Fischer, G. Els +6
Raman scattering in the quarter-filled spin ladder system alpha'-NaV_2O_5 shows in the dimerized singlet ground state () an unexpected sequence of three magnetic…
Magnetic Bound States in Dimerized Quantum Spin Systems
P. Lemmens, M. Fischer, M. Grove +5
Magnetic bound states are a general phenomenon in low dimensional antiferromagnets with gapped singlet states. Using Raman scattering on three compounds as dedicated examples we sh…
Electronic Raman scattering in Tl2Ba2CuO6+x: symmetry of the order parameter, oxygen doping effects, and normal state scattering
L. V. Gasparov, P. Lemmens, N. N. Kolesnikov +1
Single crystals of the optimally doped, moderately and strongly overdoped high temperature superconductor Tl2Ba2CuO6+x (Tl-2201) with Tc=80, 56 and 30K, respectively, have been inv…
Dopant-Bound Spinons in Cu_(1-x)Zn_xGeO_3
G. Els, G. S. Uhrig, P. Lemmens +7
Polarized inelastic light scattering experiments on Cu_(1-x)Zn_xGeO_3 (0<= x <= 0.045) single crystals show for x<>0 a new distinct mode at nearly half the energy of the singlet re…