Pronounced first-order metamagnetic transition in the paramagnetic heavy-fermion system CeTiGe

  • Deppe M
  • Lausberg S
  • Weickert F
 et al. 
  • 13

    Readers

    Mendeley users who have this article in their library.
  • 12

    Citations

    Citations of this article.

Abstract

We report on the observation of large, step-like anomalies in the magnetization ($\Delta M = 0.74$\,$\mu_{\rm B}$/Ce), in the magnetostriction ($\Delta l/l_{0} = 2.0 \cdot 10^{-3}$), and in the magnetoresistance in polycrystals of the paramagnetic heavy-fermion system CeTiGe at a critical magnetic field $\mu_0 H_c \approx $ 12.5\,T at low temperatures. The size of these anomalies is much larger than those reported for the prototypical heavy-fermion metamagnet CeRu$_2$Si$_2$. Furthermore, hysteresis between increasing and decreasing field data indicate a real thermodynamic, first-order type of phase transition, in contrast to the crossover reported for CeRu$_2$Si$_2$. Analysis of the resistivity data shows a pronounced decrease of the electronic quasiparticle mass across $H_c$. These results establish CeTiGe as a new metamagnetic Kondo-lattice system, with an exceptionally large, metamagnetic transition of first-order type at a moderate field.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text

Authors

  • M. Deppe

  • S. Lausberg

  • F. Weickert

  • M. Brando

  • Y. Skourski

  • N. Caroca-Canales

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free