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Implications of second harmonic generation for hidden order in Sr₂CuO₂Cl₂

de la Torre, A. and Di Matteo, S. and Hsieh, D. and Norman, M. R. (2021) Implications of second harmonic generation for hidden order in Sr₂CuO₂Cl₂. Physical Review B, 104 (3). Art. No. 035138. ISSN 2469-9950. doi:10.1103/PhysRevB.104.035138.

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Sr₂CuO₂Cl₂ (SCOC) is a model undoped cuprate with I4/mmm crystallographic symmetry, and a simple magnetic space group C_Amca with associated magnetic point group mmm1′. However, recent second harmonic spectroscopy in the antiferromagnetic phase has challenged this picture, suggesting instead a magnetic point group 4/mm′m′ that coexists with the antiferromagnetism and breaks the two orthogonal mirror planes containing the tetragonal c axis. Here, we analyze the symmetry of SCOC in light of the second harmonic results, and discuss possible ground states that are consistent with the data.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
de la Torre, A.0000-0002-6751-8205
Di Matteo, S.0000-0001-5746-0057
Hsieh, D.0000-0002-0812-955X
Norman, M. R.0000-0002-9459-078X
Alternate Title:Implications of second harmonic generation for hidden order in Sr2CuO2Cl2
Additional Information:© 2021 American Physical Society. Received 12 March 2021; revised 4 June 2021; accepted 6 July 2021; published 19 July 2021. Work at Caltech was supported by an Army Research Office (ARO) PECASE award W911NF-17-1-0204. Work at Argonne was supported by the Materials Sciences and Engineering Division, Basic Energy Sciences, Office of Science, US Department of Energy.
Funding AgencyGrant Number
Army Research Office (ARO)W911NF-17-1-0204
Department of Energy (DOE)UNSPECIFIED
Issue or Number:3
Record Number:CaltechAUTHORS:20210406-142159297
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108636
Deposited By: Tony Diaz
Deposited On:07 Apr 2021 23:31
Last Modified:02 Aug 2021 17:18

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