Výsledky vyhledávání - "Felix Baumberger"

Akademický článek

A laser-ARPES study of LaNiO3 thin films grown by sputter deposition

Autor: Edoardo Cappelli, Willem O. Tromp, Siobhan McKeown Walker, Anna Tamai, Marta Gibert, Felix Baumberger, Flavio Y. Bruno

Publikováno v: APL Materials, Vol 8, Iss 5, Pp 051102-051102-6 (2020)

Thin films of the correlated transition-metal oxide LaNiO3 undergo a metal–insulator transition when their thickness is reduced to a few unit cells. Here, we use angle-resolved photoemission spectroscopy to study the evolution of the electronic str

Externí odkaz: https://doaj.org/article/a80ccb058737414f8fd08e7bb6f6378f

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Electronic structure of 2D van der Waals crystals and heterostructures investigated by spatially- and angle-resolved photoemission

Autor: Irène Cucchi, Simone Lisi, Florian Margot, Hugo Henck, Anna Tamai, Felix Baumberger

Publikováno v: Comptes rendus. Physique., Vol. 22, No S4 (2021)

Angle-resolved photoemission is a direct probe of the momentum-resolved electronic structure and proved influential in the study of bulk crystals with novel electronic properties. Thanks to recent technical advances, this technique can now be applied

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d4d65b51f6de9b64ed615bb3def9078
https://doi.org/10.5802/crphys.91

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A Laser‐ARPES view of the 2D electron systems at LaAlO_3 /SrTiO_3 and Al/SrTiO_3 interfaces

Autor: Siobhan McKeown Walker, Margherita Boselli, Emanuel A. Martínez, Stefano Gariglio, Flavio Y. Bruno, Felix Baumberger

Publikováno v: E-Prints Complutense. Archivo Institucional de la UCM
instname
Advanced electronic materials (2022) P. 2101376

We have measured the electronic structure of the two-dimensional electron system (2DES) found at the Al/SrTiO3 (Al/STO) and LaAlO3/SrTiO3 (LAO/STO) interfaces by means of laser angle resolved photoemission spectroscopy, taking advantage of the large

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f1aab7d58f2d83b4d6c5c1258428faf
https://eprints.ucm.es/id/eprint/72531/

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Magnetic order, disorder, and excitations under pressure in the Mott insulator Sr$_2$IrO$_4$

Autor: A. de la Torre, Yejun Feng, Thomas Rosenbaum, R. S. Perry, D. M. Silevitch, David Hsieh, Anjana Krishnadas, Felix Baumberger, S. E. Cooper, Xiang Li

Publikováno v: Physical review. B., Vol. 104, No 20 (2021) P. L201111

Protected by the interplay of on-site Coulomb interactions and spin-orbit coupling, Sr$_2$IrO$_4$ at high pressure is a rare example of a Mott insulator with a paramagnetic ground state. Here, using optical Raman scattering, we measure both the phono

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aecc13c2a9b933886f5818ef9a86400
http://arxiv.org/abs/2110.11588

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Mapping spin–charge conversion to the band structure in a topological oxide two-dimensional electron gas

Publikováno v: Nature Materials
Nature Materials, Nature Publishing Group, 2019, ⟨10.1038/s41563-019-0467-4⟩
Nature Materials, 2019, ⟨10.1038/s41563-019-0467-4⟩
Nature Materials (2019)

While spintronics has traditionally relied on ferromagnetic metals as spin generators and detectors, spin–orbitronics exploits the efficient spin–charge interconversion enabled by spin–orbit coupling in non-magnetic systems. Although the Rashba

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a3b528243546d367686ba03ecc9cf63
https://doi.org/10.1038/s41563-019-0467-4

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Metal to insulator transition at the surface of $V_2O_3$ thin films: an in-situ view

Autor: Marco Caputo, Sandeep Kumar Chaluvadi, Felix Baumberger, Ivana Vobornik, Andrea Goldoni, Milan Radovic, Piero Torelli, Jun Fujii, Giancarlo Panaccione, Giovanni Vinai, E. Bonini Guedes, Pasquale Orgiani, Muntaser Naamneh, Edoardo Cappelli, Jasmin Jandke

Publikováno v: Applied surface science 574 (2022): 151608. doi:10.1016/j.apsusc.2021.151608
info:cnr-pdr/source/autori:M. Caputo and J. Jandke and E. Cappelli and S.K. Chaluvadi and E. Bonini Guedes and M. Naamneh and G. Vinai and J. Fujii and P. Torelli and I. Vobornik and A. Goldoni and P. Orgiani and F. Baumberger and M. Radovic and G. Panaccione/titolo:Metal to insulator transition at the surface of V2O3 thin films: An in-situ view/doi:10.1016%2Fj.apsusc.2021.151608/rivista:Applied surface science/anno:2022/pagina_da:/pagina_a:151608/intervallo_pagine:151608/volume:574
Applied surface science, Vol. 574 (2022) P. 151608

$V_2O_3$ has long been studied as a prototypical strongly correlated material. The difficulty in obtaining clean, well ordered surfaces, however, hindered the use of surface sensitive techniques to study its electronic structure. Here we show by mean

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Direct comparison of ARPES, STM, and quantum oscillation data for band structure determination in Sr2RhO4

Autor: Felix Baumberger, Willem O. Tromp, Andrew P. Mackenzie, S. Riccò, Milan P. Allan, Irene Battisti, R. S. Perry, Anna Tamai

Publikováno v: npj Quantum Materials, Vol. 5, No 1 (2020) P. 91
npj Quantum Materials, Vol 5, Iss 1, Pp 1-8 (2020)
npj Quantum Materials

This work was supported by the UK-EPSRC under grant EP/G007357/1, by the Swiss National Science Foundation (SNSF) under grants 200020_165791 and 200020_184998, by the Max Planck Society, by the European Research Council (ERC StG SpinMelt), and by the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3afd78ede2c2960f84f65f4d64367cb9
https://doi.org/10.1038/s41535-020-00292-4

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Bulk and Surface Electronic Structure of the Dual-Topology Semimetal Pt2HgSe3

Autor: Irène Cucchi, Antimo Marrazzo, Timur K. Kim, Céline Besnard, Marco Gibertini, Anna Tamai, Edoardo Cappelli, Enrico Giannini, S. Riccò, Flavio Y. Bruno, Nicola Marzari, C. Cacho, Simone Lisi, Moritz Hoesch, Felix Baumberger

Publikováno v: Physical Review Letters. 124

We report high-resolution angle-resolved photoemission measurements on single crystals of Pt_{2}HgSe_{3} grown by high-pressure synthesis. Our data reveal a gapped Dirac nodal line whose (001) projection separates the surface Brillouin zone in topolo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98f60a8d76c4e3fb81224a116ff9f83a
https://doi.org/10.1103/physrevlett.124.106402

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Observation of flat bands in twisted bilayer graphene

Publikováno v: Nature physics, Vol. 17, No 2 (2020) pp. 189-193
Nature Physics
Nature Physics, 17, 189-193

Transport experiments in twisted bilayer graphene have revealed multiple superconducting domes separated by correlated insulating states1–5. These properties are generally associated with strongly correlated states in a flat mini-band of the hexago

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df13ab2314b0f0597c8cba0b8ea20009
https://archive-ouverte.unige.ch/unige:155114

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Autor: D. F. McMorrow, J. G. Vale, L. S. I. Veiga, M. Etter, Felix Baumberger, Henrik Jacobsen, Edoardo Cappelli, Robin Perry, D. Le, C. D. Dashwood

Publikováno v: Physical Review Materials
Physical review materials 4(9), 094202 (1-8) (2020). doi:10.1103/PhysRevMaterials.4.094202

We report the synthesis and characterisation of polycrystalline Na$_2$RuO$_3$, a layered material in which the Ru$^{4+}$ ($4d^4$ configuration) form a honeycomb lattice. The optimal synthesis condition was found to produce a nearly ordered Na$_2$RuO$

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