The transport–structural correspondence across the nematic phase transition probed by elasto X-ray diffraction

  title={The transport–structural correspondence across the nematic phase transition probed by elasto X-ray diffraction},
  author={Joshua J. Sanchez and Paul Malinowski and Joshua Mutch and Jian Liu and J.-W. Kim and Philip J. Ryan and Jiun Haw Chu},
  journal={Nature Materials},
  pages={1519 - 1524}
Electronic nematicity in iron pnictide materials is coupled to both the lattice and the conducting electrons, which allows both structural and transport observables to probe nematic fluctuations and the order parameter. Here we combine simultaneous transport and X-ray diffraction measurements with in-situ tunable strain (elasto X-ray diffraction) to measure the temperature dependence of the shear modulus and elastoresistivity above the nematic transition and the spontaneous orthorhombicity and… 

Quantitative relationship between structural orthorhombicity, shear modulus, and heat capacity anomaly of the nematic transition in iron-based superconductors

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