Random walks and related diffusion equations

Autor: L. Cianchi, P. Moretti, M. Lantieri

Publikováno v: Canadian journal of physics
82 (2004): 891–904. doi:10.1139/P04-048
info:cnr-pdr/source/autori:P. Moretti; M. Lantieri; L. Cianchi/titolo:Random walks and related diffusion equations/doi:10.1139%2FP04-048/rivista:Canadian journal of physics (Print)/anno:2004/pagina_da:891/pagina_a:904/intervallo_pagine:891–904/volume:82

The one-dimensional random walk between two reflecting walls is considered from two different points of view: the first, as a particular case of jumps between neighbouring, discrete states; the second, as a system that obeys a generalized diffusion e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b88590dd7dfd614cf6d2de10b7192b74
https://doi.org/10.1139/p04-048

Corrections for non-homogeneity of the sample in Mössbauer f-factor measurements

Autor: L. Cianchi, F. Del Giallo, Gabriele Spina

Publikováno v: 192 (2002): 415–419.
info:cnr-pdr/source/autori:Spina G. 1, Cianchi L. 2, Del Giallo F. 2/titolo:Corrections for Non--homogeneity of the Sample in Mossbauer f-factor Measurements/doi:/rivista:/anno:2002/pagina_da:415/pagina_a:419/intervallo_pagine:415–419/volume:192

We describe a procedure for correcting the systematic errors in the Mossbauer f-factor measurement due to non-homogeneous effective thickness of the sample. To be more precise, we show that, if the mass of the sample is determined by means of X- or �

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a45443b1538eb8673d76918144112aa6
https://doi.org/10.1016/s0168-583x(02)00487-1

[Untitled]

Autor: F. Del Giallo, F. Lucchi, L. Cianchi, Gabriele Spina

Publikováno v: Hyperfine Interactions. 136:105-123

The lattice dynamics of high-Tc EuBCO superconductor was studied by means of Mossbauer spectroscopy of the 151Eu ion in samples with oriented grains. Three samples were prepared: one oriented by means of 8 T magnetic field, another by means pressure;

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3982715a8dfb4c97e3be3efeddb01dd3
https://doi.org/10.1023/a:1015556430015

Study of the spin dynamics in an iron cluster nanomagnet by means of Mössbauer spectroscopy

Autor: Dante Gatteschi, Andrea Caneschi, L. Cianchi, F. Del Giallo, F. Pieralli, Gabriele Spina, P. Moretti

Publikováno v: Journal of Physics: Condensed Matter. 11:3395-3403

The spin dynamics of a cluster of four iron (III) ions characterized by a spin ground state of 5 and Ising anisotropy has been investigated by means of Mossbauer spectroscopy from 10 to 80 K. For , spectra display a partially relaxed magnetic structu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f303f276febed96ffaed485ef92972a
https://doi.org/10.1088/0953-8984/11/16/019

Superconducting cuprates: A simple model of coupling between electronic holes through apical ions

Autor: F. Piazza, L. Cianchi, P. Moretti

Publikováno v: Physics Letters A. 246:451-458

An intuitive description is given of a phenomenological model for the formation of Cooper pairs in cuprate superconductors. In this model, coupling is mediated by large lattice strains connected to anharmonic oscillations along c of the apical ions.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b07442725b9fb3018ab9f374e26a26b4
https://doi.org/10.1016/s0375-9601(98)00465-4