P. Carretta

collaborators

3 papers

cond-mat.str-el2000

Li $_{2}$ VO(Si,Ge)O $_{4}$ , a prototype of a two-dimensional frustrated quantum Heisenberg antiferromagnet

R. Melzi, P. Carretta, A. Lascialfari +4

NMR and magnetization measurements in Li $_{2}$ VOSiO $_{4}$ and Li $_{2}$ VOGeO $_{4}$ are reported. The analysis of the susceptibility shows that both compounds are two-dimensional $S = 1/2$ Hei…

cond-mat.supr-con1999

NQR Study of Spin-Freezing in Superconducting La2-xSrxCuO4: The Example of x=0.06

M. -H. Julien, P. Carretta, F. Borsa

NQR 139La and 63Cu spin-lattice relaxation rate (1/T_1) measurements in a La1.94Sr0.06CuO4 single crystal are described. Slowing-down of Cu2+ spin fluctuations is evidenced through…

cond-mat.str-el1999

On the estimate of the spin-gap in quasi-1D Heisenberg antiferromagnets from nuclear spin-lattice relaxation

R. Melzi, P. Carretta

We present a careful analysis of the temperature dependence of the nuclear spin-lattice relaxation rate $1/ T_{1}$ in gapped quasi-1D Heisenberg antiferromagnets. It is found that in…

Li2​VO(Si,Ge)O4​, a prototype of a two-dimensional frustrated quantum Heisenberg antiferromagnet

NQR Study of Spin-Freezing in Superconducting La2-xSrxCuO4: The Example of x=0.06

On the estimate of the spin-gap in quasi-1D Heisenberg antiferromagnets from nuclear spin-lattice relaxation

Li $_{2}$ VO(Si,Ge)O $_{4}$ , a prototype of a two-dimensional frustrated quantum Heisenberg antiferromagnet