Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ

H. Murayama, Y. Sato, R. Kurihara, S. Kasahara, Y. Mizukami, Y. Kasahara, H. Uchiyama, A. Yamamoto, E. G. Moon, J. Cai, J. Freyermuth, M. Greven, T. Shibauchi, Y. Matsuda

Research output: Contribution to journalArticle

Abstract

The pseudogap phenomenon in the cuprates is arguably the most mysterious puzzle in the field of high-temperature superconductivity. The tetragonal cuprate HgBa2CuO4+δ, with only one CuO2 layer per primitive cell, is an ideal system to tackle this puzzle. Here, we measure the magnetic susceptibility anisotropy within the CuO2 plane with exceptionally high-precision magnetic torque experiments. Our key finding is that a distinct two-fold in-plane anisotropy sets in below the pseudogap temperature T*, which provides thermodynamic evidence for a nematic phase transition with broken four-fold symmetry. Surprisingly, the nematic director orients along the diagonal direction of the CuO2 square lattice, in sharp contrast to the bond nematicity along the Cu-O-Cu direction. Another remarkable feature is that the enhancement of the diagonal nematicity with decreasing temperature is suppressed around the temperature at which short-range charge-density-wave formation occurs. Our result suggests a competing relationship between diagonal nematic and charge-density-wave order in HgBa2CuO4+δ.

Original languageEnglish (US)
Article number3282
JournalNature communications
Volume10
Issue number1
DOIs
StatePublished - Dec 1 2019

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Charge density waves
cuprates
Temperature
Anisotropy
anisotropy
temperature
torque
Phase Transition
Torque
superconductivity
Superconductivity
Magnetic susceptibility
Thermodynamics
magnetic permeability
thermodynamics
augmentation
Phase transitions
symmetry
cells
Experiments

PubMed: MeSH publication types

  • Journal Article

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Murayama, H., Sato, Y., Kurihara, R., Kasahara, S., Mizukami, Y., Kasahara, Y., ... Matsuda, Y. (2019). Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ Nature communications, 10(1), [3282]. https://doi.org/10.1038/s41467-019-11200-1

Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ . / Murayama, H.; Sato, Y.; Kurihara, R.; Kasahara, S.; Mizukami, Y.; Kasahara, Y.; Uchiyama, H.; Yamamoto, A.; Moon, E. G.; Cai, J.; Freyermuth, J.; Greven, M.; Shibauchi, T.; Matsuda, Y.

In: Nature communications, Vol. 10, No. 1, 3282, 01.12.2019.

Research output: Contribution to journalArticle

Murayama, H, Sato, Y, Kurihara, R, Kasahara, S, Mizukami, Y, Kasahara, Y, Uchiyama, H, Yamamoto, A, Moon, EG, Cai, J, Freyermuth, J, Greven, M, Shibauchi, T & Matsuda, Y 2019, 'Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ ', Nature communications, vol. 10, no. 1, 3282. https://doi.org/10.1038/s41467-019-11200-1
Murayama H, Sato Y, Kurihara R, Kasahara S, Mizukami Y, Kasahara Y et al. Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ Nature communications. 2019 Dec 1;10(1). 3282. https://doi.org/10.1038/s41467-019-11200-1
Murayama, H. ; Sato, Y. ; Kurihara, R. ; Kasahara, S. ; Mizukami, Y. ; Kasahara, Y. ; Uchiyama, H. ; Yamamoto, A. ; Moon, E. G. ; Cai, J. ; Freyermuth, J. ; Greven, M. ; Shibauchi, T. ; Matsuda, Y. / Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ In: Nature communications. 2019 ; Vol. 10, No. 1.
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