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Crystal field effect in the thermal expansion of cubic rare earth compounds
H. R. Ott,B. Lüthi +1 more
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In this article, the volume dependence of the energy splitting between the lowest crystal field levels and the magneto-elastic coupling parameters involving the volume strain was deduced from the measurements.Abstract:
We report on evidence of crystal-electric-field effects in the low temperature thermal expansion of various rocksalt-type rare earth compounds (PrSb, SmSb, ErSb, TmSb, CeTe, TmTe). From our measurements we deduce the volume dependence of the energy splitting between the lowest crystal field levels and we calculate magnetoelastic coupling parameters involving the volume strain.read more
Citations
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Negative thermal expansion
TL;DR: In this article, the underlying thermodynamics, emphasizing the roles of thermal stress and elasticity, are reviewed, and vibrational and non-vibrational mechanisms operating on the atomic scale that are responsible for negative expansion in a wide range of materials.
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Thermal expansion of solids at low temperatures
TL;DR: In this paper, a survey of experimental data is intended to be comprehensive, and the authors have aimed to select for discussion the most significant contributions from the large volume of theoretical work in recent years.
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A miniature capacitance dilatometer for thermal expansion and magnetostriction
TL;DR: In this paper, a very small capacitive sensor for measuring thermal expansion and magnetostriction of small and irregular shaped samples has been developed, where a capacitive method with tilted plates is used.
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Superconducting and magnetic properties of ErRh4B4
TL;DR: In this paper, the thermal expansion, magnetization, magnetostriction, and ac electrical resistance of the compound ErRh/sub 4/B/sub4/ have been measured at low temperatures and the qualitative behavior of the upper critical field as a function of temperature has been determined from the experiments.
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Low Temperature Properties of the Magnetic Semiconductor TmTe
Takeshi Matsumura,Shintaro Nakamura,Terutaka Goto,Hiroshi Amitsuka,Kazuyuki Matsuhira,Toshiro Sakakibara,Takashi Suzuki +6 more
TL;DR: In this article, a phase transition which is likely to be an antiferro quadrupolar ordering was found to occur at 1.8 K. The specific heat measurements under magnetic fields along the three main crystal axes revealed the unusual characters of this phase transition.
References
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Journal ArticleDOI
Crystal Fields and the Effective-Point-Charge Model in the Rare-Earth Pnictides
TL;DR: In this paper, the fourth-order crystal field parameters for rare-earth monophosphides were investigated and it was found that the fourth order crystal fields for the phosphides and for other rare earth pnictides fall on a universal curve which is close to that predicted by an effective point charge model for the light rare earths but deviates markedly for the heavy rare earth.
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Magnetic-ion-lattice interaction: Rare-earth antimonides
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Crystal-Field Effects in Solid Solutions of Rare Earths in Noble Metals
Gwyn Williams,L. L. Hirst +1 more
TL;DR: In this paper, the magnetic susceptibility of dilute alloys has been measured between 1.9 and 300 K by a force method, and the observed departures of the susceptibility from a Curie-Weiss behavior can be understood and fitted primarily in terms of crystal-field effects.
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Crystal fields in rare-earth metallic compounds.
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