Zobrazeno 1 - 10 of 60 pro vyhledávání: '"M. Rumo"'
1
Akademický článek
Probing the interplay between lattice dynamics and short-range magnetic correlations in CuGeO3 with femtosecond RIXS
Autor: E. Paris, C. W. Nicholson, S. Johnston, Y. Tseng, M. Rumo, G. Coslovich, S. Zohar, M. F. Lin, V. N. Strocov, R. Saint-Martin, A. Revcolevschi, A. Kemper, W. Schlotter, G. L. Dakovski, C. Monney, T. Schmitt
Publikováno v: npj Quantum Materials, Vol 6, Iss 1, Pp 1-8 (2021)
Abstract Investigations of magnetically ordered phases on the femtosecond timescale have provided significant insights into the influence of charge and lattice degrees of freedom on the magnetic sub-system. However, short-range magnetic correlations
Externí odkaz: https://doaj.org/article/cf551c72453542e28b17c31a9626fbd3
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2
Akademický článek
Unveiling the complete dispersion of the giant Rashba split surface states of ferroelectric α-GeTe(111) by alkali doping
Autor: G. Kremer, T. Jaouen, B. Salzmann, L. Nicolaï, M. Rumo, C. W. Nicholson, B. Hildebrand, J. H. Dil, J. Minár, G. Springholz, J. Krempaský, C. Monney
Publikováno v: Physical Review Research, Vol 2, Iss 3, p 033115 (2020)
α-GeTe(111) is a noncentrosymmetric ferroelectric material for which a strong spin-orbit interaction gives rise to giant Rashba split states in the bulk and at the surface. The detailed dispersions of the surface states inside the bulk band gap rema
Externí odkaz: https://doaj.org/article/f4a45fdfed1e4585bcef9b7c7581e008
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4
Break of symmetry at the surface of IrTe2 upon phase transition measured by x-ray photoelectron diffraction
Autor: Aki Pulkkinen, Claude Monney, Matthias Muntwiler, M. Rumo, KeYuan Ma, Fabian O. von Rohr
IrTe$_2$ undergoes a series of charge-ordered phase transitions below room temperature that are characterized by the formation of stripes of Ir dimers of different periodicities. Full hemispherical X-ray photoelectron diffraction (XPD) experiments ha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b6002592aa54f5159fdb9c2e5e7eba6
https://doi.org/10.5167/uzh-215259
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5
Ultrafast dynamics of the surface photovoltage in potassium-doped black phosphorus
Autor: C. W. Nicholson, M. Rumo, Aki Pulkkinen, Thomas Jaouen, Geoffroy Kremer, F. von Rohr, Claude Monney, Changming Yue, Philipp Werner
Publikováno v: Physical Review B
Physical Review B, American Physical Society, 2021, 104 (3), ⟨10.1103/PhysRevB.104.035125⟩
Physical Review B, 2021, 104 (3), pp.035125. ⟨10.1103/PhysRevB.104.035125⟩
Black phosphorus is a quasi-two-dimensional layered semiconductor with a narrow direct band gap of 0.3 eV. A giant surface Stark effect can be produced by the potassium doping of black phosphorus, leading to a semiconductor to semimetal phase transit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1fc32801e090741299503ccbd92f894
https://hal.archives-ouvertes.fr/hal-03285155
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6
Insensitivity of the striped charge-orders in IrTe$_2$ to alkali surface doping implies their structural origin
Autor: C. W. Nicholson, M. Rumo, B. Salzmann, Aki Pulkkinen, F. von Rohr, T. Jaouen, Geoffroy Kremer, KeYuan Ma, B. Hildebrand, Claude Monney
Publikováno v: Physical Review Materials
Physical Review Materials, 2021, 5 (7), pp.074002. ⟨10.1103/PhysRevMaterials.5.074002⟩
Physical Review Materials, American Physical Society, 2021, 5 (7), pp.074002. ⟨10.1103/PhysRevMaterials.5.074002⟩
We present a combined angle-resolved photoemission spectroscopy and low-energy electron diffraction (LEED) study of the prominent transition metal dichalcogenide ${\mathrm{IrTe}}_{2}$ upon potassium (K) deposition on its surface. Pristine ${\mathrm{I
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::387c5cc608a22b261fa331a8e1c3dbfe
http://arxiv.org/abs/2106.08642
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7
Unveiling the complete dispersion of the giant Rashba split surface states of ferroelectric α−GeTe(111) by alkali doping
Autor: C. W. Nicholson, Laurent Nicolaï, Jan Minár, G. Springholz, B. Salzmann, Jan Hugo Dil, M. Rumo, J. Krempaský, Thomas Jaouen, B. Hildebrand, Geoffroy Kremer, Claude Monney
Publikováno v: Physical Review Research. 2
This paper shows how the detailed dispersion of the giant Rashba split surface states in the ferroelectric \ensuremath{\alpha}--GeTe(111) can be resolved by static ARPES and surface potassium doping. The authors further confirm the Rashba mechanism f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee710393bf2da7462e51fbe47df264ab
https://doi.org/10.1103/physrevresearch.2.033115
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8
Akademický článek
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9
Semimetal-to-semiconductor transition and charge-density-wave suppression in 1T−TiSe2−xSx single crystals
Autor: David R. Bowler, F. Vanini, Hans Peter Beck, Elia Razzoli, Claude Monney, Céline Barreteau, Enrico Giannini, B. Hildebrand, M. Rumo, Thomas Jaouen, M.-L. Mottas, Philipp Aebi
Publikováno v: Physical Review B. 99
The transition-metal dichalcogenide $1T\ensuremath{-}{\mathrm{TiSe}}_{2}$ is a quasi-two-dimensional layered material with a phase transition towards a commensurate charge-density wave (CDW) at a critical temperature ${T}_{c}\ensuremath{\approx}200\p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::20660c4e6f7646b1b9c64199174470c2
https://doi.org/10.1103/physrevb.99.155103
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10
Phase Separation in the Vicinity of Fermi Surface Hot Spots
Autor: Claude Monney, Elia Razzoli, Céline Barreteau, M. Di Giovannantonio, M. Rumo, Thomas Jaouen, Alberto Ubaldini, M.-L. Mottas, Enrico Giannini, F. Vanini, Philipp Aebi, Pascal Ruffieux, B. Hildebrand, Hans Peter Beck, C. W. Nicholson
Publikováno v: Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2019, 100 (7), ⟨10.1103/PhysRevB.100.075152⟩
Spatially inhomogeneous electronic states are expected to be key ingredients for the emergence of superconducting phases in quantum materials hosting charge-density-waves (CDWs). Prototypical materials are transition-metal dichalcogenides (TMDCs) and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9bf496bb3b990de85de3d7e62d1b17b
http://arxiv.org/abs/1812.00906
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