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Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin-fluctuations

Autor: Dhaka, R. S., Das, Tanmoy, Plumb, N. C., Ristic, Z., Kong, W., Matt, C. E., Xu, N., Dolui, K., Razzoli, E., Medarde, M., Patthey, L., Shi, M., Radovic, M., Mesot, Joel

Publikováno v: Phys. Rev. B 92, 035127 (2015)

We employed {\it in-situ} pulsed laser deposition (PLD) and angle-resolved photoemission spectroscopy (ARPES) to investigate the mechanism of the metal-insulator transition (MIT) in NdNiO$_3$ (NNO) thin films, grown on NdGaO$_3$(110) and LaAlO$_3$(10

Externí odkaz: http://arxiv.org/abs/1505.04510

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Magnetic nano-fluctuations in a frustrated magnet

Frustrated systems exhibit remarkable properties due to the high degeneracy of their ground states. Stabilised by competing interactions, a rich diversity of typically nanometre-sized phase structures appear in polymer and colloidal systems, while th

Externí odkaz: http://arxiv.org/abs/1404.7398

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Magnetic field-dependence of the basal-plane superconducting anisotropy in YBa2Cu4O8 from small-angle neutron scattering measurements of the vortex lattice

Autor: White, Jonathan S., Bowell, Charlotte J., Cameron, Alistair S., Heslop, Richard W., Mesot, Joël, Gavilano, Jorge L., Strässle, Simon, Mächler, Lars, Khasanov, Rustem, Dewhurst, Charles D., Karpinski, Janusz, Forgan, Edward M.

Publikováno v: Phys. Rev. B 89, 024501 (2014)

We report a study of the basal-plane anisotropy of the superfluid density in underdoped YBa$_{2}$Cu$_{4}$O$_{8}$ (Y124), showing the effects of both the CuO$_{2}$ planes and the fully occupied CuO chains. From small-angle neutron scattering measureme

Externí odkaz: http://arxiv.org/abs/1312.3725

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Localized vs. delocalized character of charge carriers in LaAlO3/ SrTiO3 superlattices

Autor: Zhou, Kejin, Radovic, Milan, Schlappa, Justine, Strocov, Vladimir, Frison, Ruggero, Mesot, Joel, Patthey, Luc, Schmitt, Thorsten

Publikováno v: Phys. Rev. B 83, 201402(R) (2011)

Understanding the nature of electrical conductivity, superconductivity and magnetism between layers of oxides is of immense importance for the design of electronic devices employing oxide heterostructures. We demonstrate that resonant inelastic X-ray

Externí odkaz: http://arxiv.org/abs/1011.4674

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