G. Caimi

activity

20032005

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

T i O C l

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

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7 papers · 1 filter

cond-mat.str-el2005★ 24 cited

Optical evidence for a magnetically driven structural transition in the spin web $C u_{3} T e O_{6}$

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

$C u_{3} T e O_{6}$ is a modest frustrated $S = 1/2$ spin system, which undergoes an anti-ferromagnetic transition at $T_{N} \sim 61$ $K$ . The anti-ferromagnetic spin alignment in $C u_{3} T e O_{6}$ 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 $E u$ by $C a$ in ferromagnetic $E u B_{6}$ leads to a percolation limited magnetic ordering. We present and discuss magneto-optical data of the $E u_{1 - x} C a_{x} B_{6}$ series,…

cond-mat.str-el2004★ 14 cited

Optical evidence for the proximity to a spin-density-wave metallic state in Na $_{0.7}$ CoO $_{2}$

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 ( $T$ ). 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 $T i O C l$

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

We report results on the electrodynamic response of $T i O C l$ , a low-dimensional spin-1/2 quantum magnet that shows a spin gap formation for T $< T_{c 1}$ = 67 $K$ . The Fano-like shape o…

cond-mat.str-el2003★ 5 cited

Magneto-optical Kerr effect in $E u_{1 - x} C a_{x} B_{6}$

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

We have measured the magneto-optical Kerr rotation of ferromagnetic $E u_{1 - x} C a_{x} B_{6}$ with x=0.2 and 0.4, as well as of $Y b B_{6}$ serving as the non-magnetic reference material…

cond-mat.str-el2003★ 42 cited

Giant phonon anomalies in the pseudo-gap phase of TiOCl

P. Lemmens, K. Y. Choi, G. Caimi +4

We report infrared and Raman spectroscopy results of the spin-1/2 quantum magnet TiOCl. Giant anomalies are found in the temperature dependence of the phonon spectrum, which hint t…

Optical evidence for a magnetically driven structural transition in the spin web Cu3​TeO6​

Magneto-optical evidence of double exchange in a percolating lattice

Optical evidence for the proximity to a spin-density-wave metallic state in Na0.7​CoO2​

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

Magneto-optical Kerr effect in Eu1−x​Cax​B6​

Giant phonon anomalies in the pseudo-gap phase of TiOCl

Optical evidence for a magnetically driven structural transition in the spin web $C u_{3} T e O_{6}$

Optical evidence for the proximity to a spin-density-wave metallic state in Na $_{0.7}$ CoO $_{2}$

Infrared optical properties of the spin-1/2 quantum magnet $T i O C l$

Magneto-optical Kerr effect in $E u_{1 - x} C a_{x} B_{6}$