Quantum materials

Quantum materials

Quantum materials are materials whose often exotic properties are governed by quantum mechanics and quantum effects beyond the Pauli exclusion principle play a major role. This includes weakly interacting systems with a nontrivial electronic band topology and geometry such as topological insulators and semimetals. Our group has a strong interest in magnetic topological phases such as axion insulators that exhibit a large and quantized magnetoelectric response in the bulk.

Another class of quantum materials are correlated systems where the Coulomb interactions between electrons results in entangled wavefunctions and cooperative phenomena beyond the single-electron approximation. Our group works on frustrated magnets, emergent orders such as nematicity, unconventional superconductors, and quantum spin liquids. 

Research Activities

Selected Talks

Electron irradiation effects on superconductivity in PdTe2: An application of a generalized Anderson theorem
Talk given at Virtual APS March Meeting, 18 March 2021

Nodeless superconductivity in type-II Dirac semimetal PdTe2: London penetration depth and pairing-symmetry analysis
Talk given at Superstripes Conference, Ischia, 26 June 2019

Intertwined vestigial order in quantum materials: nematicity and beyond
Talk given at Los Alamos National Lab, Los Alamos, NM, 20 May 2019

Intertwined electronic states of matter: emergent order in frustrated antiferromagnets
Talk given at Grinnell College, Grinnell, IA, 24 Oct 2017

Selected Publications
  • Victor Drouin-Touchette, Peter P. Orth, Piers Coleman, Premala Chandra, Tom C. Lubensky
    Emergent Potts Order in a Coupled Hexatic-Nematic XY model
    Phys. Rev. X 12, 011043 (2022).
  • Thaís V. Trevisan, Pablo Villar Arribi, Olle Heinonen, Robert-Jan Slager, Peter P. Orth
    Bicircular light tuning of magnetic symmetry and topology in Dirac semimetal Cd3As2
    Phys. Rev. Lett. 128, 066602 (2022). 
  • N. Sirica, P. P. Orth, M. S. Scheurer, Y.M. Dai, M.-C. Lee, P. Padmanabhan, L.T. Mix, L.X. Zhao, G.F. Chen, B. Xu, R. Yang, B. Shen, C.-C. Lee, H. Lin, T.A. Cochran, S.A. Trugman, J.-X. Zhu, M.Z. Hasan, N. Ni, X.G. Qiu, A.J. Taylor, D.A. Yarotski, R.P. Prasankumar
    Photocurrent-driven transient symmetry breaking in the Weyl semimetal TaAs
    Nature Materials (2021). 
  • S. X. M. Riberolles, T. V. Trevisan, B. Kuthanazhi, T. W. Heitmann, F. Ye, D. C. Johnston, S. L. Bud'ko, D. H. Ryan, P. C. Canfield, A. Kreyssig, A. Vishwanath, R. J. McQueeney, L. L. Wang, P. P. Orth, B. G. Ueland
    Magnetic crystalline-symmetry-protected axion electrodynamics and field-tunable unpinned Dirac cones in EuIn2As
    Nat. Commun. 12, 999 (2021).
  • Noah F. Berthusen, Yuriy Sizyuk, Mathias S. Scheurer, Peter P. Orth
    Learning crystal field parameters using convolutional neural networks
    SciPost Phys. 11, 011 (2021).
  • E. I. Timmons, S. Teknowijoyo, M. Kończykowski, O. Cavani, M. A. Tanatar, Sunil Ghimire, Kyuil Cho, Yongbin Lee, Liqin Ke, Na Hyun Jo, S. L. Bud'ko, P. C. Canfield, Peter P. Orth, Mathias S. Scheurer, R. Prozorov
    Electron irradiation effects on superconductivity in PdTe2: an application of a generalized Anderson theorem
    Phys. Rev. Research 2, 023140 (2020).
  • Rafael M. Fernandes, Peter P. Orth, Jörg Schmalian
    Intertwined vestigial order in quantum materials: nematicity and beyond
    Annu. Rev. Cond. Mat. Phys. 10, 133 (2019).

All Publications