M. Vaccari
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
M. Vaccari has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Paolo Fornasini
University of Trento
3 shared publications - Andrea Sanson
University of Padua
1 shared publication - Francesco Rocca
IFN-CNR, Institute for Photonics and Nanotechnologies, Unit FBK-Photonics of Trento, Povo, Trento, Italy
1 shared publication - G. Dalba
Univ. di Trento (Italy)
1 shared publication - Juris Purans
Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., LV1063 Riga, Latvia
1 shared publication R. Grisenti
INFM and Dipartimento di Fisica, Università di Trento, I‐38050 Povo (Trento), Italy
1 shared publication
Latest Publications
- 15 June 2006
- Published by International Union of Crystallography (IUCr) in Journal of Synchrotron Radiation
- Vol. 13 (4) , 321-325
Einstein and Debye models for EXAFS parallel and perpendicular mean-square relative displacements
The correlated Einstein and Debye models for EXAFS parallel mean-square relative displacement (MSRD) are derived from the general expression in terms of eigenfrequencies and eigenvectors of the dynamical matrix, without ad hoc assumptions. The two models are generalized to parameterize also the EXAFS perpendicular MSRD. The physical meaning of Einstein frequencies, as well as the application of the Debye model to crystals with more than one atom per cell, are critically discussed.
- 15 June 2006
- Published by International Union of Crystallography (IUCr) in Journal of Synchrotron Radiation
- Vol. 13 (4) , 321-325
Einstein and Debye models for EXAFS parallel and perpendicular mean-square relative displacements
The correlated Einstein and Debye models for EXAFS parallel mean-square relative displacement (MSRD) are derived from the general expression in terms of eigenfrequencies and eigenvectors of the dynamical matrix, without ad hoc assumptions. The two models are generalized to parameterize also the EXAFS perpendicular MSRD. The physical meaning of Einstein frequencies, as well as the application of the Debye model to crystals with more than one atom per cell, are critically discussed.
- 12 September 2005
- Published by American Physical Society (APS) in Physical Review B
- Vol. 72 (9) , 092301
Thermal effects on EXAFS: Ensemble averages and real-space approach
Thermal effects on EXAFS are considered from a general perspective. The equivalence between canonical average and real space average is demonstrated without approximations in both classical and quantum regimes. The link between distribuiton of interatomic distances and the Hamiltonian of the system is clarified. The role of the one-dimensional effective potential is critically discussed.
- 12 September 2005
- Published by American Physical Society (APS) in Physical Review B
- Vol. 72 (9) , 092301
Thermal effects on EXAFS: Ensemble averages and real-space approach
Thermal effects on EXAFS are considered from a general perspective. The equivalence between canonical average and real space average is demonstrated without approximations in both classical and quantum regimes. The link between distribuiton of interatomic distances and the Hamiltonian of the system is clarified. The role of the one-dimensional effective potential is critically discussed.
- 16 November 2004
- Published by Wiley in physica status solidi (c)
- Vol. 1 (11) , 3085-3088
EXAFS studies of lattice dynamics and thermal expansion
- 16 November 2004
- Published by Wiley in physica status solidi (c)
- Vol. 1 (11) , 3085-3088
EXAFS studies of lattice dynamics and thermal expansion