activity
20032005
most citedInfrared optical properties of the spin-1/2 quantum magnet

44 citations · 178 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.str-el2005★ 24 cited

Optical evidence for a magnetically driven structural transition in the spin web

G. Caimi, L. Degiorgi, H. Berger +1

is a modest frustrated spin system, which undergoes an anti-ferromagnetic transition at . The anti-ferromagnetic spin alignment in be…

cond-mat.str-el2005★ 18 cited

Magneto-optical evidence of double exchange in a percolating lattice

G. Caimi, A. Perucchi, L. Degiorgi +5

Substituting by in ferromagnetic leads to a percolation limited magnetic ordering. We present and discuss magneto-optical data of the series,…

cond-mat.mtrl-sci2004★ 18 cited

Analysis of the phonon spectrum in the titanium oxyhalide TiOBr

G. Caimi, L. Degiorgi, P. Lemmens +1

We present the electrodynamic response of TiOBr, which undergoes a transition to a spin-singlet ground state for temperatures below T K. The temperature evolution of the…

cond-mat.str-el2004★ 14 cited

Optical evidence for the proximity to a spin-density-wave metallic state in NaCoO

G. Caimi, L. Degiorgi, H. Berger +3

We present the optical properties of \na single crystals, measured over a broad spectral range as a function of temperature (). The capability to cover the energy range from the…

cond-mat.str-el2003★ 44 cited

Infrared optical properties of the spin-1/2 quantum magnet

G. Caimi, L. Degiorgi, N. N. Kovaleva +2

We report results on the electrodynamic response of , a low-dimensional spin-1/2 quantum magnet that shows a spin gap formation for T= 67 . The Fano-like shape o…

cond-mat.str-el2003★ 5 cited

Magneto-optical Kerr effect in

G. Caimi, S. Broderick, H. R. Ott +3

We have measured the magneto-optical Kerr rotation of ferromagnetic with x=0.2 and 0.4, as well as of serving as the non-magnetic reference material…