Magnetic phases of the thulium-terbium alloy system
Identifieur interne : 002718 ( Main/Exploration ); précédent : 002717; suivant : 002719Magnetic phases of the thulium-terbium alloy system
Auteurs : S. W Zochowski [Royaume-Uni] ; S. A Creeger [Royaume-Uni]Source :
- Physica B: Physics of Condensed Matter [ 0921-4526 ] ; 1998.
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Abstract
Abstract: Early studies made on Tm-Tb alloys found a complex phase diagram for the system. Because of the orthogonal anisotropies involved which lead to the Tb moments lying in the basal plane and the Tm moments along the c-axis, the Tm-Tb system is particularly well suited to address the problem of the competing crystal-field and exchange anisotropies in the heavy rare-earth metals. Neutron-diffraction studies were made on a number of alloys at the HMI, the ILL and ISIS. Careful continuous measurement of the diffraction patterns over the experimental temperature range, 2 K < T < 300 K, has enabled us to complete the phase diagram for the system, especially important at the Tm-rich end, and determine the lattice parameters. From the magnetic peaks we have deduced the modulation wave vectors at various temperatures. The results have been correlated with the effective exchange and Stevens' factors for the alloys.
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DOI: 10.1016/S0921-4526(97)00698-4
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A Creeger</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Physics, Birkbeck College, University of London, Malet Street, London WC1E 7HX</wicri:regionArea><orgName type="university">Université de Londres</orgName><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Physica B: Physics of Condensed Matter</title><title level="j" type="abbrev">PHYSB</title><idno type="ISSN">0921-4526</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1998">1998</date><biblScope unit="volume">241–243</biblScope><biblScope unit="supplement">C</biblScope><biblScope unit="page" from="704">704</biblScope><biblScope unit="page" to="706">706</biblScope></imprint><idno type="ISSN">0921-4526</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0921-4526</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alloy</term><term>Alloy system</term><term>Anisotropy</term><term>Basal</term><term>Basal plane</term><term>Better understanding</term><term>Contour plots</term><term>Creeger physica</term><term>Diffraction patterns</term><term>Elsevier science</term><term>Exchange anisotropies</term><term>Helical</term><term>Helical structure</term><term>Lattice parameters</term><term>Modulation wave vectors</term><term>Orthogonal anisotropies</term><term>Phase diagram</term><term>Single crystals</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Alloy</term><term>Alloy system</term><term>Anisotropy</term><term>Basal</term><term>Basal plane</term><term>Better understanding</term><term>Contour plots</term><term>Creeger physica</term><term>Diffraction patterns</term><term>Elsevier science</term><term>Exchange anisotropies</term><term>Helical</term><term>Helical structure</term><term>Lattice parameters</term><term>Modulation wave vectors</term><term>Orthogonal anisotropies</term><term>Phase diagram</term><term>Single crystals</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Alliage</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Early studies made on Tm-Tb alloys found a complex phase diagram for the system. Because of the orthogonal anisotropies involved which lead to the Tb moments lying in the basal plane and the Tm moments along the c-axis, the Tm-Tb system is particularly well suited to address the problem of the competing crystal-field and exchange anisotropies in the heavy rare-earth metals. Neutron-diffraction studies were made on a number of alloys at the HMI, the ILL and ISIS. Careful continuous measurement of the diffraction patterns over the experimental temperature range, 2 K < T < 300 K, has enabled us to complete the phase diagram for the system, especially important at the Tm-rich end, and determine the lattice parameters. From the magnetic peaks we have deduced the modulation wave vectors at various temperatures. The results have been correlated with the effective exchange and Stevens' factors for the alloys.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Londres</li></region><settlement><li>Londres</li></settlement><orgName><li>Université de Londres</li></orgName></list><tree><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Zochowski, S W" sort="Zochowski, S W" uniqKey="Zochowski S" first="S. W" last="Zochowski">S. W Zochowski</name></region><name sortKey="Creeger, S A" sort="Creeger, S A" uniqKey="Creeger S" first="S. A" last="Creeger">S. A Creeger</name><name sortKey="Zochowski, S W" sort="Zochowski, S W" uniqKey="Zochowski S" first="S. W" last="Zochowski">S. W Zochowski</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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