A parity-breaking electronic nematic phase transition in the spin-orbit coupled metal Cd 2 Re 2 O 7

Author:

Harter J. W.12ORCID,Zhao Z. Y.34ORCID,Yan J.-Q.35,Mandrus D. G.35ORCID,Hsieh D.12ORCID

Affiliation:

1. Department of Physics, California Institute of Technology, Pasadena, CA 91125, USA.

2. Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, CA 91125, USA.

3. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.

4. Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA.

5. Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA.

Abstract

A nonlinear peek into electronic symmetry Strong interactions among electrons in some materials can cause them to assume configurations that are less symmetric than the underlying crystal lattice. These so-called electronic nematic states usually have inversion symmetry, but theorists have predicted that in metals with strong spin-orbit coupling, the inversion symmetry can be lost. Harter et al. teased out the symmetry of the electronic order in the compound Cd 2 Re 2 O 7 (see the Perspective by Dodge). They found that a known structural transition in this material is a consequence of another, previously hidden electronic order that breaks inversion symmetry. Science , this issue p. 295 ; see also p. 246

Funder

National Science Foundation

U.S. Department of Energy

Army Research Office

Alfred P. Sloan Foundation

Gordon and Betty Moore Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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