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Neutron diffraction search for the charge density waves in early rare earth metal deuterides RD/sub 3/ (R = La, Ce)

Abstract

The results of neutron diffraction measurements performed on CeDsub(x) near the trihydride composition MeD/sub 3/ at room temperature and on LaDsub(2.9) at liquid nitrogen and room temperatures are presented. Superstructure reflections have been found. The system of additional reflections in lanthanum deuteride is different from that in cerium deuteride. The concentration and temperature boundaries for the transformed phases are reported. The experimental results are discussed on the basis of Kulikov's excitonic dielectric model for metal-to-semiconductor phase transitions. The determination of crystal structures from experimental neutron diffraction patterns is discussed.
Authors:
Alikhanov, R A; Buzin, V I; Kulikov, N I; [1]  Kost, M E; [2]  Sikora, W; [3]  Smirnov, L S [4] 
  1. AN SSSR, Moscow. Inst. Fiziki Vysokikh Davlenij
  2. Institute of General and Inorganic Chemistry, Academy of Sciences of the USSR, Moscow (USSR)
  3. Joint Inst. for Nuclear Research, Dubna (USSR)
  4. Institute of Theoretical and Experimental Physics, Moscow (USSR)
Publication Date:
Aug 01, 1984
Product Type:
Conference
Report Number:
CONF-8309136-
Reference Number:
AIX-15-071989; EDB-85-023562
Resource Relation:
Journal Name: J. Less-Common Met.; (Switzerland); Journal Volume: 101; Conference: Hydrogen in metals international meeting, Wroclaw, Poland, 20 Sep 1983
Subject:
36 MATERIALS SCIENCE; CERIUM COMPOUNDS; NEUTRON DIFFRACTION; DEUTERIDES; LANTHANUM COMPOUNDS; CHEMICAL COMPOSITION; CRYSTAL STRUCTURE; MEDIUM TEMPERATURE; PHASE TRANSFORMATIONS; STEEL-18KH2N4VA; ALLOYS; ALUMINIUM ADDITIONS; ALUMINIUM ALLOYS; CHROMIUM ALLOYS; COHERENT SCATTERING; DEUTERIUM COMPOUNDS; DIFFRACTION; HYDROGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; MANGANESE ADDITIONS; MANGANESE ALLOYS; NICKEL ALLOYS; NICKEL STEELS; NICKEL-CHROMIUM STEELS; RARE EARTH COMPOUNDS; SCATTERING; SILICON ADDITIONS; SILICON ALLOYS; STEELS; TUNGSTEN ADDITIONS; TUNGSTEN ALLOYS; 360202* - Ceramics, Cermets, & Refractories- Structure & Phase Studies
OSTI ID:
6224696
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JCOMA
Submitting Site:
HEDB
Size:
Pages: 291-297
Announcement Date:

Citation Formats

Alikhanov, R A, Buzin, V I, Kulikov, N I, Kost, M E, Sikora, W, and Smirnov, L S. Neutron diffraction search for the charge density waves in early rare earth metal deuterides RD/sub 3/ (R = La, Ce). Switzerland: N. p., 1984. Web.
Alikhanov, R A, Buzin, V I, Kulikov, N I, Kost, M E, Sikora, W, & Smirnov, L S. Neutron diffraction search for the charge density waves in early rare earth metal deuterides RD/sub 3/ (R = La, Ce). Switzerland.
Alikhanov, R A, Buzin, V I, Kulikov, N I, Kost, M E, Sikora, W, and Smirnov, L S. 1984. "Neutron diffraction search for the charge density waves in early rare earth metal deuterides RD/sub 3/ (R = La, Ce)." Switzerland.
@misc{etde_6224696,
title = {Neutron diffraction search for the charge density waves in early rare earth metal deuterides RD/sub 3/ (R = La, Ce)}
author = {Alikhanov, R A, Buzin, V I, Kulikov, N I, Kost, M E, Sikora, W, and Smirnov, L S}
abstractNote = {The results of neutron diffraction measurements performed on CeDsub(x) near the trihydride composition MeD/sub 3/ at room temperature and on LaDsub(2.9) at liquid nitrogen and room temperatures are presented. Superstructure reflections have been found. The system of additional reflections in lanthanum deuteride is different from that in cerium deuteride. The concentration and temperature boundaries for the transformed phases are reported. The experimental results are discussed on the basis of Kulikov's excitonic dielectric model for metal-to-semiconductor phase transitions. The determination of crystal structures from experimental neutron diffraction patterns is discussed.}
journal = {J. Less-Common Met.; (Switzerland)}
volume = {101}
place = {Switzerland}
year = {1984}
month = {Aug}
}