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

@article{Sanchez2020TheTC,
  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},
  year={2020},
  volume={20},
  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… 

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References

SHOWING 1-10 OF 53 REFERENCES

Relationship between Transport Anisotropy and Nematicity in FeSe

Jack Bartlett, 2, ∗ Alexander Steppke, † Suguru Hosoi, 4 Hilary Noad, Joonbum Park, Carsten Timm, 6 Takasada Shibauchi, Andrew P. Mackenzie, 2 and Clifford W. Hicks 7, ‡ Max Planck Institute for

Elastocaloric signature of nematic fluctuations

An unanticipated doping dependence of the nemato-elastic coupling is uncovered and of the magnitude of the scattering of low-energy quasi-particles by nematic fluctuations is uncovered—while the former weakens, the latter increases dramatically with increasing doping.

Nematicity and superconductivity: Competition versus cooperation

Electronic nematic behavior has been identified and studied in iron-based superconductors for some time, particularly in the well-known BaFe$_2$As$_2$ system, where it is well-known to compete with

Nematicity and competing orders in superconducting magic-angle graphene

The identification of intertwined phases with broken rotational symmetry inmagic-angle twisted bilayer graphene (TBG) is reported, indicating that nematic fluctuations might play an important role in the low-temperature phases of magic-angle TBG.

Suppression of superconductivity by anisotropic strain near a nematic quantum critical point

In most unconventional and high-temperature superconductors, superconductivity emerges as a nearby symmetry-breaking phase is suppressed by chemical doping or pressure 1 – 7 . This has led to the

Evolution of the Nematic Susceptibility in LaFe_{1-x}Co_{x}AsO.

A systematic elastoresistivity study on LaFe_{1-x}Co_{x}AsO single crystals, which have well separated structural and magnetic transition lines, shows a Curie-Weiss-like nematic susceptibility in the tetragonal phase.

Competition versus Cooperation

There are many factors that determine the structure of competition in the environment of growing globalisation. Of these, the factors which predominate the nature of competition include not only

Anisotropic Grüneisen Parameter and Diverse Order Parameter Fluctuations in Iron-Based Superconductor Ba(Fe1−xCox)2As2

In this study, the temperature dependence of the elastic constants C11, C33, CE = (C11 − C12)/2, C66, and C44 of the iron-based superconductor Ba(Fe1−xCox)2As2 (\(0 \leqq x \leqq 0.245\)) have been...

Structural Quantum Criticality and Superconductivity in Iron-Based Superconductor Ba(Fe1-xCox)2As2

We investigated the elastic properties of the iron-based superconductor Ba(Fe 1- x Co x ) 2 As 2 with eight Co concentrations. The elastic constant C 66 shows a large elastic softening associated

Nematicity in the superconducting mixed state of strain detwinned underdoped Ba( Fe1−xCox)2As2

Evidence of nematic effects in the mixed superconducting phase of slightly underdoped $\text{Ba}(\text{Fe}_{1-x}\text{Co}_x)_2\text{As}_2$ is reported. We have found strong in-plane resistivity
...