Výsledky vyhledávání - "Robarts, Hannah"

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Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors

Autor: Choi, Jaewon, Li, Jiemin, Nag, Abhishek, Pelliciari, Jonathan, Robarts, Hannah, Tam, Charles C., Walters, Andrew, Agrestini, Stefano, García-Fernández, Mirian, Song, Dongjoon, Eisaki, Hiroshi, Johnston, Steven, Comin, Riccardo, Ding, Hong, Zhou, Ke-Jin

Publikováno v: Advanced Materials 36, 2307515 (2024)

The omnipresence of charge density waves (CDWs) across almost all cuprate families underpins a common organizing principle. However, a longstanding debate of whether its spatial symmetry is stripe or checkerboard remains unresolved. While CDWs in lan

Externí odkaz: http://arxiv.org/abs/2301.07637

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Direct measurement of a remnant Fermi surface in SmB6

Autor: Millichamp, Thomas E., Billington, David, Robarts, Hannah C., Laverock, Jude, ONeill, Daniel, Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Duffy, Jonathan A., Taylor, Jonathan W., Giblin, Sean R., Dugdale, Stephen B.

The quest to understand the nature of the electronic state in SmB6 has been challenging, perplexing and surprising researchers for over half a century. In the theoretically predicted topological Kondo insulator SmB6, the nature of the bulk electronic

Externí odkaz: http://arxiv.org/abs/2111.07727

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Multi-orbital charge density wave excitations and concomitant phonon anomalies in Bi$_2$Sr$_2$LaCuO$_{6+\delta}$

Autor: Li, Jiemin, Nag, Abhishek, Pelliciari, Jonathan, Robarts, Hannah, Walters, Andrew, Garcia-Fernandez, Mirian, Eisaki, Hiroshi, Song, Dongjoon, Ding, Hong, Johnston, Steven, Comin, Riccardo, Zhou, Ke-Jin

Publikováno v: PNAS July 14, 2020 117 (28) 16219-16225

Charge density waves (CDWs) are ubiquitous in under-doped cuprate superconductors. As a modulation of the valence electron density, CDWs in hole-doped cuprates possess both Cu-3d and O-2p orbital character owing to the strong hybridization of these o

Externí odkaz: http://arxiv.org/abs/2006.14912

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Extreme Fermi surface smearing in a maximally disordered concentrated solid solution

Autor: Robarts, Hannah C., Millichamp, Thomas E., Lagos, Daniel A., Laverock, Jude, Billington, David, Duffy, Jonathan A., O'Neill, Daniel, Giblin, Sean R., Taylor, Jonathan W., Kontrym-Sznajd, Grazyna, Samsel-Czekala, Malgorzata, Bei, Hongbin, Mu, Sai, Samolyuk, German D., Stocks, G. Malcolm, Dugdale, Stephen B.

Publikováno v: Physical Review Letters 124, 046402 (2020)

We show that the Fermi surface can survive the presence of extreme compositional disorder in the equiatomic alloy Ni$_{0.25}$Fe$_{0.25}$Co$_{0.25}$Cr$_{0.25}$. Our high-resolution Compton scattering experiments reveal a Fermi surface which is smeared

Externí odkaz: http://arxiv.org/abs/2001.11416

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