Stopping power of protons in transition metals of the groups V and VI

We present theoretical results for the stopping power of protons in V, Nb, Cr and Mo with the aim of discuss the present knowledge of energy loss in these transitions metals with 3 and 4 electrons in the outer d-subshell. The theoretical description spans over a wide energy region, which covers from...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Montanari, C.C., Miraglia, J.E.
Formato:	INPR
Materias:	Energy loss Stopping power Energy dissipation Transition metals Antiproton impact Collective excitations Dielectric formalism Low-impact velocity Nonperturbative model Plasmon excitations Sensitive regions Velocity
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0168583X_v_n_p_Montanari
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_0168583X_v_n_p_Montanari
record_format	dspace
spelling	todo:paper_0168583X_v_n_p_Montanari2023-10-03T15:06:36Z Stopping power of protons in transition metals of the groups V and VI Montanari, C.C. Miraglia, J.E. Energy loss Stopping power Energy dissipation Transition metals Antiproton impact Collective excitations Dielectric formalism Low-impact velocity Nonperturbative model Plasmon excitations Sensitive regions Stopping power Velocity We present theoretical results for the stopping power of protons in V, Nb, Cr and Mo with the aim of discuss the present knowledge of energy loss in these transitions metals with 3 and 4 electrons in the outer d-subshell. The theoretical description spans over a wide energy region, which covers from impact velocities below the Fermi velocity, to high but not relativistic ones, covering the sensitive region of the stopping maximum. We use two complementary formalisms, a binary non-perturbative model recently developed by our group, and with very good results for proton and antiproton impact at low impact velocities. The other one is the known dielectric formalism, perturbative, so valid for impact velocities quite above the Fermi velocity, but including the binary and collective excitations of the valence electrons. We obtain a good description of the experimental data in the whole energy range. The importance of plasmon excitation at energies around the maximum is clear. We call the attention on the need of new data in Nb and Mo targets around the stopping maximum, and the lack of stopping values below 30 keV in the four targets. © 2018 Elsevier B.V. INPR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0168583X_v_n_p_Montanari
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Energy loss Stopping power Energy dissipation Transition metals Antiproton impact Collective excitations Dielectric formalism Low-impact velocity Nonperturbative model Plasmon excitations Sensitive regions Stopping power Velocity
spellingShingle	Energy loss Stopping power Energy dissipation Transition metals Antiproton impact Collective excitations Dielectric formalism Low-impact velocity Nonperturbative model Plasmon excitations Sensitive regions Stopping power Velocity Montanari, C.C. Miraglia, J.E. Stopping power of protons in transition metals of the groups V and VI
topic_facet	Energy loss Stopping power Energy dissipation Transition metals Antiproton impact Collective excitations Dielectric formalism Low-impact velocity Nonperturbative model Plasmon excitations Sensitive regions Stopping power Velocity
description	We present theoretical results for the stopping power of protons in V, Nb, Cr and Mo with the aim of discuss the present knowledge of energy loss in these transitions metals with 3 and 4 electrons in the outer d-subshell. The theoretical description spans over a wide energy region, which covers from impact velocities below the Fermi velocity, to high but not relativistic ones, covering the sensitive region of the stopping maximum. We use two complementary formalisms, a binary non-perturbative model recently developed by our group, and with very good results for proton and antiproton impact at low impact velocities. The other one is the known dielectric formalism, perturbative, so valid for impact velocities quite above the Fermi velocity, but including the binary and collective excitations of the valence electrons. We obtain a good description of the experimental data in the whole energy range. The importance of plasmon excitation at energies around the maximum is clear. We call the attention on the need of new data in Nb and Mo targets around the stopping maximum, and the lack of stopping values below 30 keV in the four targets. © 2018 Elsevier B.V.
format	INPR
author	Montanari, C.C. Miraglia, J.E.
author_facet	Montanari, C.C. Miraglia, J.E.
author_sort	Montanari, C.C.
title	Stopping power of protons in transition metals of the groups V and VI
title_short	Stopping power of protons in transition metals of the groups V and VI
title_full	Stopping power of protons in transition metals of the groups V and VI
title_fullStr	Stopping power of protons in transition metals of the groups V and VI
title_full_unstemmed	Stopping power of protons in transition metals of the groups V and VI
title_sort	stopping power of protons in transition metals of the groups v and vi
url	http://hdl.handle.net/20.500.12110/paper_0168583X_v_n_p_Montanari
work_keys_str_mv	AT montanaricc stoppingpowerofprotonsintransitionmetalsofthegroupsvandvi AT miragliaje stoppingpowerofprotonsintransitionmetalsofthegroupsvandvi
_version_	1807319579591966720

Stopping power of protons in transition metals of the groups V and VI

Ejemplares similares