Gamma5 quasiparticles and avoided quantum criticality in U(Ru,Rh)2Si2

N. Harrison; A. V. Silhanek; C. D. Batista; M. Jaime; A. Lacerda; H. Amitsuka; J. A. Mydosh

Gamma5 quasiparticles and avoided quantum criticality in U(Ru,Rh)2Si2

Strongly Correlated Electrons 2007-05-23 v1 Materials Science

Authors: N. Harrison , A. V. Silhanek , C. D. Batista , M. Jaime , A. Lacerda , H. Amitsuka , J. A. Mydosh

Abstract

We discuss recent specific heat data in high magnetic fields on URu2Si2 and 4% Rh-doped URu2Si2 as well as previously published de Haas-van Alphen data at lower magnetic fields in pure URu2Si2; both of which are consistent with quasiparticle bands formed from a hybridization between 5f-electron Gamma5 doublets and regular conduction electrons. The system exhibits itinerant electron metamagnetism that gives rise to a putative quantum critical point at \~ 34 -37 T (depending on the % of Rh) that is subsequently unstable to field-induced phases

Keywords

Gamma5 quasiparticles quantum criticality U(Ru,Rh)$_2$Si$_2$ hybridization metamagnetism

Cite

@article{arxiv.cond-mat/0506384,
  title  = {Gamma5 quasiparticles and avoided quantum criticality in U(Ru,Rh)2Si2},
  author = {N. Harrison and A. V. Silhanek and C. D. Batista and M. Jaime and A. Lacerda and H. Amitsuka and J. A. Mydosh},
  journal= {arXiv preprint arXiv:cond-mat/0506384},
  year   = {2007}
}

Comments

3 pages: paper submitted to SCES'05 in Vienna

Gamma5 quasiparticles and avoided quantum criticality in U(Ru,Rh)2Si2

Abstract

Keywords

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