3 papers
cond-mat.str-el1998
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…
cond-mat1997
Interference of a first-order transition with the formation of a spin-Peierls state in alpha'-NaV2O5?
M. Koeppen, D. Pankert, R. Hauptmann +4
We present results of high-resolution thermal-expansion and specific-heat measurements on single crystalline alpha'-NaV2O5. We find clear evidence for two almost degenerate phase t…
cond-mat.str-el1997
Experimental evidence for a spin-Peierls-transition in
M. Weiden, R. Hauptmann, C. Geibel +4
We present the first measurements of magnetisation and Raman light scattering on single crystals. Below 34 K, we observe a pronounced isotropic decrease of the suscep…