Search: onr:"swepub:oai:DiVA.org:uu-82093" >
Crystal and magneti...
Crystal and magnetic structure investigation of TbNi5-xCux (x=0,0.5,1.0,1.5,2.0) : Experiment and theory
-
- Lizárraga, Raquel (author)
- Uppsala universitet,Fysiska institutionen
-
- Bergman, Anders (author)
- Uppsala universitet,Fysiska institutionen
-
- Björkman, Torbjörn (author)
- Uppsala universitet,Fysiska institutionen
-
show more...
-
- Liu, H-P (author)
- Uppsala universitet,Institutionen för materialkemi
-
- Andersson, Yvonne (author)
- Uppsala universitet,Oorganisk kemi,Strukturkemi
-
- Gustafsson, Torbjörn (author)
- Uppsala universitet,Oorganisk kemi,Strukturkemi
-
Kuchin, A. G. (author)
-
Ermolenko, A. S. (author)
-
- Nordström, Lars (author)
- Uppsala universitet,Fysiska institutionen
-
- Eriksson, Olle (author)
- Uppsala universitet,Fysiska institutionen
-
show less...
-
(creator_code:org_t)
- 2006
- 2006
- English.
-
In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 74:9, s. 094419-
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The effect of Cu substitution on the structural and magnetic properties of TbNi5-xCux (x=0,0.5,1.0,1.5,2.0) have been investigated by x-ray diffraction, magnetization measurements and neutron powder and single crystal diffraction. The electronic and the magnetic structures of TbNi5 were studied using first principles theory. All samples were found to have the CaCu5-type structure, space group P6/mmm. The lattice parameters increase monotonically with increasing Cu concentration. The Curie temperature T-c has a maximum value of 29 K at x=1.0. The magnetic structure of TbNi5 at 10 K is incommensurate with a helimagnetic component [wave vector q similar to 2 pi/c(0,0,0.02)] perpendicular to a ferromagnetic one. In contrast, the substituted TbNi5-xCux alloy is ferromagnetic. All magnetic moments are observed to be located on the Tb atoms. The magnetocrystalline anisotropy in the ab plane is observed to be strongly increased by the Cu substitution, whereas the magnetization decreases with the Cu concentration. The observed magnetic structure of TbNi5 is consistent with first principles calculations regarding both the magnetic moments and the helimagnetic structure. The microscopical origin of the helimagnet is analyzed and correlated to the Fermi surface topology.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Inorganic chemistry
- Oorganisk kemi
- Magnetism
- Magnetism
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Lizárraga, Raque ...
-
Bergman, Anders
-
Björkman, Torbjö ...
-
Liu, H-P
-
Andersson, Yvonn ...
-
Gustafsson, Torb ...
-
show more...
-
Kuchin, A. G.
-
Ermolenko, A. S.
-
Nordström, Lars
-
Eriksson, Olle
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Inorganic Chemis ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Condensed Matter ...
- Articles in the publication
-
Physical Review ...
- By the university
-
Uppsala University