Debye temperature of single-crystal Cr with incommensurate and commensurate magnetic structure
نویسندگان
چکیده
منابع مشابه
Commensurate-incommensurate magnetic phase transition in magnetoelectric single crystal LiNiPO(4).
Neutron scattering studies of single crystal LiNiPO4 reveal a spontaneous first-order commensurate-incommensurate magnetic phase transition. Short- and long-range incommensurate phases are intermediate between the high temperature paramagnetic and the low temperature antiferromagnetic phases. The modulated structure has a predominant antiferromagnetic component, giving rise to satellite peaks i...
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The magnetic phase diagram of the quasi one-dimensional spinchain system CsNiF 3 below the Néel temperature is determined. For magnetic fields perpendicular to the spin chains incommensurate phases are predicted. From linear spin-wave theory we obtain the instability line of the paramagnetic phase as a function of the strength and the direction of the field. The system undergoes a transition to...
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In condensed matter physics there are many successful models of phase transitions between a more ordered and less ordered state. Break a continuous symmetry and you’ve got yourself a cpmtomipus phase transition. Roughly speaking the transition occurs when the symmetry breaking potential term becomes the dominant one in the free energy and the system ‘contracts’ in phase space decreasing entropy...
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A scheme for making ab-initio calculations of the dynamic paramagnetic spin susceptibilities of solids at finite temperatures is described. It is based on TimeDependent Density Functional Theory and employs an electronic multiple scattering formalism. Incommensurate and commensurate anti-ferromagnetic spin fluctuations in paramagnetic Cr and compositionally disordered Cr95V5 and Cr95Re5 alloys ...
متن کاملCommensurate Dy magnetic ordering associated with incommensurate lattice distortion in multiferroic DyMnO3
N = 5 K, the Dy magnetic moments order in a commensurate structure with propagation vector 0.5 b∗. Simultaneous with the Dy magnetic ordering, an incommensurate lattice modulation with propagation vector 0.905 b∗ evolves while the original Mn induced modulation is suppressed and shifts from 0.78 b∗ to 0.81 b∗. This points to a strong interference of Mn and Dy induced structural distortions in D...
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ژورنال
عنوان ژورنال: EPL (Europhysics Letters)
سال: 2019
ISSN: 1286-4854
DOI: 10.1209/0295-5075/127/26002