Tunability of crossover phases in MX-compounds

MX materials offer the unique opportunity to study a whole variety of phases from CDW phases over long-range mixed phases to SDW phases by changing the chemical composition, or by applying external pressure. Especially in the regime of the mixed, long wavelength phases, where the free energy differe...

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Bibliographic Details
Published inSynthetic metals Vol. 86; no. 1; pp. 2211 - 2213
Main Authors Röder, Heinrich, Bishop, Alan R., Tinka Gammel, J.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Lausanne Elsevier B.V 28.02.1997
Amsterdam Elsevier Science
New York, NY
Subjects
Charge-density-wave systems
Collective effects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Crossover phases
Electron states
Exact sciences and technology
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Physics
Spin-density waves
Crossover phases
Pressure effects
Hamiltonians
Charge density waves
Theoretical study
Chemical composition
Phase transitions
One-dimensional systems
Spin density waves
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Summary:MX materials offer the unique opportunity to study a whole variety of phases from CDW phases over long-range mixed phases to SDW phases by changing the chemical composition, or by applying external pressure. Especially in the regime of the mixed, long wavelength phases, where the free energy differences are small, a magnetic field can be used to select a specific phase characterized by certain charge and spin correlations. We discuss the characteristics of those phases and their relevant parameters regimes and experimental signatures. Since the free energy differences between various phases are small we also discuss the influence of non-adiabaticity and disorder on their relative stability.
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(97)81097-1