Skip to main content
Open Access Publications from the University of California

Magnetic field induced orbital polarization in cubic YbInNi4: Determining the quartet ground state using X-ray linear dichroism

  • Author(s): Willers, T
  • Cezar, JC
  • Brookes, NB
  • Hu, Z
  • Strigari, F
  • Körner, P
  • Hollmann, N
  • Schmitz, D
  • Bianchi, A
  • Fisk, Z
  • Tanaka, A
  • Tjeng, LH
  • Severing, A
  • et al.

We have been able to induce a linear dichroic signal in the Yb M5x-ray absorption white line of cubic YbInNi4by the application of a magnetic field. The nonzero integrated intensity of the magnetic field induced dichroic spectrum indicates a net noncubic 4f orbital polarization. A quantitative analysis of the temperature and field strength dependence establishes that the crystal-field ground state is a Γ8quartet. The results demonstrate the potential of magnetic field induced linear dichroism as a new powerful approach for the investigation of the degeneracy and orbital degrees of freedom of cubic heavy-fermion and Kondo systems. © 2011 American Physical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View