2004/11/15 by V. F. Correa, Winston Okraku, W. E. Okraku +5
Chemistry · Materials Science · Physics and Astronomy · #Chemistry #Condensed matter physics #Crystallography #Elastic modulus #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetostriction #Materials science #Physics #Quantum mechanics #Rare-earth and actinide compounds #Resonant ultrasound spectroscopy #Thermal Expansion and Ionic Conductivity #Thermal expansion #Thermodynamics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.72.012407
5 pages, 6 figures
arxiv created 2004/11/15 · openalex publication_date 2005/07/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report high-magnetic-field thermal expansion and magnetostriction results on CeRhIn5 single crystals. Several phase transitions, both first and second order, are observed when the field is applied perpendicular to the crystallographic c axis. The magnetic field dependence of the thermal-expansion coefficient above 15\phantom\rule0.3em0exK, where the magnetic correlations are negligible, can be explained supposing an almost pure \ensuremath|\ifmmode±\else\textpm\fi5∕2⟩ ground state doublet, in apparent contradiction with neutron scattering experiments. Although the spin-lattice interaction is relevant in this compound, the effect of the magnetic correlations on the elastic properties is relatively weak, as revealed by resonant ultrasound spectroscopy experiments.