Polarization dependent magneto-Raman study of phonons and magnons in CoTiO<sub>3</sub>

ORAL

Abstract

We performed a study of the symmetry of the Raman active phonons and magnons in exotic quantum magnet CoTiO3. Using polarization dependent Raman, we mapped out the symmetry of the various quasiparticles in an isotropic and anisotropic cut of the sample, the ab-plane and ac-plane respectively. The study was carried out in its magnetically ordered phase below 38 K. In addition, we measured the polarization dependent of the magnons as a function of applied magnetic field. The results are analyzed using the Raman tensors of the magnetic point group in the ordered phase.

*Work at OSU and CSU was supported by the Center for Emergent Materials at OSU, a Materials Research Science and Engineering Centerfunded by NSF under grant DMR-2011876.

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Presenters

  • Thuc T Mai

    • National Institute of Standards and Technology

Authors

  • Thuc T Mai

    • National Institute of Standards and Technology

  • Maria F Munoz

    • National Institute of Standards and Technologies

  • Tehseen Adel

    • National Institute of Standards and Technology

  • Yufei Li

    • Ohio State University

  • Kevin F Garrity

    • National Institute of Standards and Tech

  • Daniel Shaw

    • Colorado State University

  • Timothy N DeLazzer

    • Colorado State University

  • Jeffrey R Simpson

    • Towson University

  • Kate A Ross

    • Colorado State University

  • Rolando Valdes Aguilar

    • Ohio State University

  • Angela R Hight Walker

    • National Institute of Standards and Tech
    • National Institute of Standards and Technology