Energy Citations Database
Bookmark and Share

Bibliographic Citation

 
Document
For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field.
For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability.
DOI http://dx.doi.org/10.1103/PhysRevB.59.308
Title Magnetic and transport properties of single-grain R-Mg-Zn icosahedral quasicrystals [R=Y, (Y{sub 1{minus}x}Gd{sub x}), (Y{sub 1{minus}x}Tb{sub x}), Tb, Dy, Ho, and Er]
Creator/Author Fisher, I.R. ; Cheon, K.O. ; Panchula, A.F. ; Canfield, P.C. [Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)] ; Chernikov, M. ; Ott, H.R. [Laboratorium fuer Festkoerperphysick, ETH-Hoenggerberg, CH-8093 Zurich (Switzerland)] ; Dennis, K. [Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)]
Publication Date1999 Jan 01
OSTI IdentifierOSTI ID: 289190
Other Number(s)Journal ID: PRBMDO; ISSN 0163-1829; TRN: TRN: 9901M0114
Resource TypeJournal Article
Resource RelationJournal Name: Physical Review, B: Condensed Matter; Journal Volume: 59; Journal Issue: 1; Other Information: PBD: Jan 1999
Subject36 MATERIALS SCIENCE; RARE EARTH ALLOYS; ELECTRIC CONDUCTIVITY; MAGNETIC PROPERTIES; YTTRIUM ALLOYS; GADOLINIUM ALLOYS; MAGNESIUM ALLOYS; DYSPROSIUM ALLOYS; HOLMIUM ALLOYS; ERBIUM ALLOYS; SPIN GLASS STATE; TERBIUM ALLOYS; ZINC ALLOYS; SOLID SOLUTIONS; ANISOTROPY; MAGNETIC SUSCEPTIBILITY
Description/AbstractWe report measurements of the dc magnetization, the low-field ac magnetic susceptibility, and the electrical resistivity of large (up to 0.5 cm{sup 3}) single-grain samples of icosahedral R-Mg-Zn (R=Y, Tb, Dy, Ho, and Er). The dc magnetization and ac magnetic susceptibility data both indicate that icosahedral Tb-Mg-Zn and Dy-Mg-Zn undergo a transition to a spin-glass state at T{sub f}=5.8 and 3.6 K, respectively, while low-temperature ac susceptibility measurements show that T{sub f}=1.95 and 1.3 K for Ho-Mg-Zn and Er-Mg-Zn, respectively. For the series of solid solutions (Y{sub 1{minus}x}Tb{sub x})-Mg-Zn, the freezing temperature T{sub f} varies approximately as x{sup 2/3}. The (Y{sub 1{minus}x}Gd{sub x})-Mg-Zn solid solutions have lower T{sub f} values than (Y{sub 1{minus}x}Tb{sub x})-Mg-Zn for the same magnetic rare-earth concentrations ({ital x}), indicating that local moment anisotropy caused by crystalline electric-field effects plays a significant role in increasing T{sub f}. On the other hand, angular-dependent studies show that the dc magnetization for T{gt}T{sub f} is isotropic within the experimental uncertainty. The electrical resistivity {rho}(T) of the single-grain samples is only weakly temperature dependent, with a small, negative d{rho}/dT. Absolute values of the resistivity fall in the range between 150 and 200 {mu}{Omega}thinspcm, which is distinctly lower than the values previously reported for other thermodynamically stable icosahedral quasicrystals. {copyright} {ital 1999} {ital The American Physical Society}
Country of PublicationUnited States
LanguageEnglish
FormatMedium: X; Size: pp. 308-321
System Entry Date2008 Feb 04

Top