Journal ArticleDOI
Phase diagram of cerium antimonide
TLDR
In this paper, a semi-phenomenological theory is proposed which starts from the following ideas: a layered structure resulting from a strongly anisotropic exchange, the coexistence of magnetic and non-magnetic layers resulting from quadrupole interactions and nonbilinear exchange.Abstract:
The complicated phase diagram of CeSb reveals a conflict between competing forces. A semi-phenomenological theory is proposed which starts from the following ideas. (1) A layered structure resulting from a strongly anisotropic exchange. (2) The coexistence of magnetic and non-magnetic layers resulting from quadrupole interactions and non-bilinear exchange. (3) Interactions between non-magnetic layers including (a) oscillating interactions through conduction electrons, (b) repulsion through longitudinal strains, and (c) attraction through shear strain. The general features of the phase diagram can be understood from these assumptions but certain details can only be accounted for if a number of adjustable parameters are introduced.read more
Citations
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Neutron diffraction studies of the modulated magnetic structures of CeSb and Nd metal (invited)
TL;DR: The magnetic phase diagram of CeSb was reviewed and related to some of the theoretical models that have been developed to account for it in this paper, and the results of neutron diffraction studies of Nd metal were also summarized.
Journal ArticleDOI
On the magnetic structure of actinide monopnictides
G. H. Lander,P. Burlet +1 more
TL;DR: The magnetic structures of actinides (i.e. those materials containing 5 f electrons) exhibit considerable complexity as discussed by the authors, due to the competition between exchange, often anisotropic in nature, crystal-field, and quadrupolar interactions.
Journal ArticleDOI
Magnetic properties of CeSb1−xTex solid solution
TL;DR: In this article, the variations of the crystal field splitting energy Δ=E(Γ8)−E (Γ7) has been studied as a function of the composition x for the solid solution CeSb1−xTex in the whole range 0
References
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Journal ArticleDOI
Theory of discommensurations and the commensurate-incommensurate charge-density-wave phase transition
TL;DR: In this article, the lock-in phase transition is interpreted as a defect melting transition with a finite density of discommensurations in the incommensurate state of the charge density wave (CDW).
Journal ArticleDOI
Exchange Interaction in Alloys with Cerium Impurities
B. Coqblin,J. R. Schrieffer +1 more
TL;DR: In this paper, the Anderson model for the $4{f}^{1}$ configuration of cerium was performed, taking into account combined spin and orbit exchange scattering, and the resultant interaction Hamiltonian differs qualitatively from the conventional $s\ensuremath{-}f$ exchange interaction.
Journal ArticleDOI
Phase diagram and magnetic structures of CeSb
TL;DR: In this article, the magnetic structures of the various observed Cerium pnictides phases have been determined and three types of structures can be distinguished: (a) at low temperature only $M\ensuremath{\uparrow}$ and $P$ planes exist.
Journal ArticleDOI
Devil's Stairs and the Commensurate-Commensurate Transitions in CeSb
J. von Boehm,Per Bak +1 more
TL;DR: In this article, a simple model of a periodically modulated magnetic system is presented, where the phase diagram includes multiple phase transitions between commensurate phases, similar to those observed in CeSb.
Journal ArticleDOI
Specific heat analysis of the magnetic phase diagram of CeSb
TL;DR: In this article, specific heat measurements have been performed on single crystals of CeSb with a magnetic field up to 70 kOe applied along a (001) direction, and the results confirm that in some magnetic structures there exist non-magnetic planes in which Ce3+ ions have an entropy of about kln2.