Publications

[72] Direct visualization of Rashba-split bands and spin/orbital-charge interconversion at KTaO3 interfaces. S. Varotto, A. Johansson, B. Göbel, L. M. Vicente-Arche, S. Mallik, J. Bréhin, R. Salazar, F. Bertran, P. Lefèvre, N. Bergeal, J. Rault, I. Mertig, and M. Bibes to appear in Nature Commun. (2022), also available at arXiv:2207.08698.

[71] Multiband effects in the superconducting phase diagram of oxide interfaces. A. Jouan, S. Hurand, G. Singh, E. Lesne, A. Barthélémy, M. Bibes, C. Ulysse, G. Saiz , C. Feuillet-Palma, J. Lesueur and N. Bergeal. Adv. Mat. Int. (2022) https://onlinelibrary.wiley.com/doi/10.1002/admi.202201392

[70] Superfluid stiffness of a KTaO3-based two-dimensional electron gas. S. Mallik, G. Ménard, G. Saïz, H. Witt, J. Lesueur, A. Gloter, L. Benfatto, M. Bibes, N. Bergeal. Nature Commun. 13, 4625 (2022).

[69] Two-gap s±-wave superconductivity at an oxide interface. G. Singh, G. Venditti, G. Saiz, G. Herranz, F. Sanchez , A. Jouan, C. Feuillet-Palma, J. Lesueur , M. Grilli, S. Caprara, N. Bergeal. Phys. Rev. B 105, 064512 (2022).

[68] From low-field Sondheimer oscillations to high-field very large and linear magnetoresistance in a SrTiO3-based two-dimensional electron gas. S. Mallik, G. C. Ménard, G. Saiz, A. Gloter, N. Bergeal, M. Gabay, M. Bibes, Nano Lett.  22, 1, 65–72 (2022).

[67] Extremely long range, high-temperature Josephson coupling across a half metallic ferromagnet. D. Sanchez-Manzano, S. Mesoraca , F. Cuellar, M. Cabero, V. Rouco, G. Orfila, X. Palermo, A. Balan, L. Marcano, A. Sander, M. Rocci 1, J. Garcia-Barriocanal, F. Gallego, J. Tornos, A. Rivera, F. Mompean, M. Garcia-Hernandez, J. M. Gonzalez-Calbet, C. Leon, S. Valencia, C. Feuillet-Palma, N. Bergeal, A. Buzdin, J. Lesueur, Javier E. Villegas, J. Santamaria, Nat. Mater. 21,188–194 (2021).

[66]Quasi two-dimensional electron gas at the oxide interfaces for topological quantum physics. A. Barthelemy, N. Bergeal, M. Bibes, A. Caviglia, R. Citro, M. Cuoco, B. Kalisky, A. Perroni, J. Santamaria, D. Stornaiuolo and M. Salluzzo, Europhys. Lett. 133, 17001 (2021).

[65] Spin-charge interconversion in KTaO3 two-dimensional electron gases. L. M. Vicente-Arche, J. Bréhin, S. Varotto, M. Cosset-Cheneau, S. Mallik, R. Salazar, P. Noël, D. C. Vaz, F. Trier, S. Bhattacharya, A. Sander, P. Le Fèvre, F. Bertran, G. Saiz, G. Ménard, N. Bergeal, A. Barthélémy, H. Li, C.-C. Lin, D. E. Nikonov, I. A. Young, J. Rault, L. Vila, J-P. Attané and M. Bibes, Adv. Mater. 33, 2102102 (2021).

[64] Dynamic properties of high-Tc superconducting nano-junctions made with a focused helium ion beam. F. Couëdo, P. Amari, C. Feuillet-Palma, C. Ulysse, Y. K. Srivastava, R. Singh, N. Bergeal and J. Lesueur Sci. Rep. 10, 10256 (2020).

[63] Present and future of high-temperature superconductor quantum-based voltage standards. A. M. Klushin, J. Lesueur, M. Kampik, F. Raso, A. Sosso, S. K. Khorshev, N. Bergeal, F. Couëdo, C. Feuillet-Palma, P. Durandetto, M. Grzenik, K. Kubiczek, K. Musiol, and A. Skorkowski. IEEE Instrumentation and Measurement Magazine 23(2), 4-12 (2020).

[62] Quantized conductance in a one-dimensional ballistic oxide nanodevice. A. Jouan, G. Singh, E. Lesne, D. C. Vaz, M. Bibes, A. Barthélémy, C. Ulysse, D. Stornaiuolo, M. Salluzzo, S. Hurand, J. Lesueur, C. Feuillet-Palma and N. Bergeal. Nature Elec. 3, 201–206 (2020).

[61] Quasiparticle Tunnel Electroresistance In Superconducting Junctions. V. Rouco, R. El Hage, A. Sander, J. Grandal, X. Palermo, J. Briatico, S. Collin, J. Trastoy, K. Bouzehouane, A.I. Buzdin, G. Singh, N. Bergeal, C. Feuillet-Palma, J. Lesueur, C. Leon, M. Varela, J. Santamaría and Javier E. Villegas. Nature Commun. 11, 658 (2020).

[60] Mapping spin-charge conversion to the band structure in a topological oxide two-dimensional electron gas. D. C. Vaz, P. Noël, A. Johansson, B. Göbel, F. Bruno, G. Singh, S. McKeown-Walker, F. Trier, L. M. Vicente-Arche, A. Sander, S. Valencia, P. Bruneel, M. Vivek, M. Gabay, N. Bergeal, F. Baumberger, H. Okuno, A. Barthélémy, A. Fert, L. Vila, I. Mertig, J-P. Attané and M. Bibes, Nature Mat. 18, 1187–1193 (2019).

[59] Non-linear IV characteristics in two-dimensional superconductors: Berezinskii-Kosterlitz-Thouless physics vs inhomogeneity. G. Venditti, J. Biscaras, S. Hurand, N. Bergeal, J. Lesueur, A. Dogra, R. C. Budhani, M, Mondal, J. Jesudasan, P. Raychaudhuri, S. Caprara, and L. Benfatto. Phys. Rev. B 100, 064506 (2019).

[58] High-Tc superconducting antenna for highly-sensitive microwave magnetometry

F. Couëdo, E. Recoba Pawlowski, J. Kermorvant, J. Trastoy, D. Crété, Y. Lemaître, B. Marcilhac, C. Ulysse, C. Feuillet-Palma, N. Bergeal, and J. Lesueur. Appl. Phys. Lett. 114, 192602 (2019).

[57] Gap suppression at a Lifshitz transition in a multi-condensate superconductor.  G. Singh, A. Jouan, G. Herranz, M. Scigaj, F. Sanchez, L. Benfatto, S.Caprara, M. Grilli, F. Couedo, C. Feuillet-Palma, J. Lesueur, N. Bergeal. Nature Mat. 18, 948–954 (2019).

[56] Spin-Orbit induced phase-shift in Bi2Se3 Josephson junctions. A. Assouline, C. Feuillet-Palma, N. Bergeal, T. Zhang,A. Mottaghizadeh, A. Zimmers, E. Lhuillier,M. Marangolo, M. Eddrief, P. Atkinson, M. Aprili, H. Aubin Nature Commun. 10, 126 (2019).

[55] Josephson-like dynamics of the superconducting LaAlO3/SrTiO3 interface. S. Hurand, A. Jouan, E. Lesne, G. Singh, C. Feuillet-Palma, M. Bibes, A. Barthélémy, J. Lesueur & N. Bergeal. Phys. Rev. B. 99, 104515 (2019).

[54] Microwave amplifiers keep the noise down. N. Bergeal, Nature Electronics 1, 210-211 (2018).

[53] Extremely Low threshold Optical Switching and Modulation of Ion-irradiated High-T-c Superconducting Metamaterial. Y. K. Srivastava, F. Couedo, P. Pitchappa, C. Feuillet-Palma, N. Bergeal, J. Lesueur R. Singh, 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2019).

 [52] Static and Radio-frequency magnetic response of high Tc Superconducting Quantum Interference Filters made by ion irradiation. E. Recoba Pawlowski, J. Kermorvant, D. Crété, Y. Lemaître, B. Marcilhac, C. Ulysse, F. Couëdo, C. Feuillet-Palma, N. Bergeal, J. Lesueur, Supercond. Sci. Technol. 31, 095005 (2018).

[51] Competition between electron pairing and phase coherence in superconducting interfaces. G. Singh, A. Jouan, L. Benfatto, F. Couedo, P. Kumar, A. Dogra, R. Budhani, S. Caprara, M. Grilli, E. Lesne, A. Barthelemy, M. Bibes, C. Feuillet-Palma, J. Lesueur, N. Bergeal. Nat. Commun. 9, 407 (2018).

[50] Ion-irradiated YBa2Cu3O7 Josephson arrays for high-frequency mixing. A. Sharafiev, M. Malnou, C. Feuillet-Palma, C. Ulysse, P. Febvre, J. Lesueur and  N. Bergeal.  Supercond. Sci. Technol. 31, 035003 (2018).

[49] Ion irradiated YBa2Cu3O7 nano-meanders for superconducting single photon detectors. P. Amari, C. Feuillet-Palma, A. Jouan, F. Couedo, N. Bourlet, E. Géron, M. Malnou, A. Sharafiev, J. Lesueur & N. Bergeal Supercond. Sci. Technol. 31, 015019 (2018).

[48] Effect of disorder on superconductivity and Rashba spin-orbit coupling in LaAlO3/SrTiO3 interfaces. G. Singh, A. Jouan, S. Hurand, C. Feuillet-Palma, P. Kumar, A. Dogra, R. Budhani, J. Lesueur & N. Bergeal, Phys. Rev. B  96, 024509 (2017)

[47] High-Tc superconducting quantum interference filters (SQIFs) made by ion irradiation. S. Ouanani, J.  Kermorvant, C. Ulysse, M. Malnou, Y. Lemaître, B. Marcilhac, C. Feuillet-Palma, N. Bergeal, D. Crété, J. Lesueur,  Supercond. Sci. Technol. 29, 094002 (2016).

[46] Josephson oscillation linewidth of ion-irradiated YBa2Cu3O7 junctions. A Sharafiev, M Malnou, C. Feuillet-Palma, C. Ulysse, P. Febvre, J. Lesueur and N. Bergeal. Supercond. Sci. Technol. 29 074001 (2016).

[45] Top-gated field-effect LaAlO3/SrTiO3 devices made by ion-irradiation. S. Hurand, A. Jouan, C.  Feuillet-Palma, G. Singh, E. Lesne, N. Reyren, A. Barthelemy, M. Bibes, J. E. Villegas, C. Ulysse, M. Pannetier-Lecoeur, M. Malnou, J. Lesueur, N.  Bergeal Appl. Phys. Lett. 108, 052602 (2016)

[44] Phase Separation from Electron Confinement at Oxide Interfaces. N. Scopigno, D. Bucheli, S. Caprara, J. Biscaras, N.  Bergeal, J. Lesueur, M. Grilli, Phys. Rev. Lett. 116, 026804 (2016)

[43] Tunable Flux-Matching Effects in High-T-c Superconductors with Nonuniform Pinning Array.  J. Trastoy, C. Ulysse, R. Bernard, M. Malnou, N. Bergeal, J.  Lesueur, J. Briatico, J. E. Villegas, Phys.  Rev. Appl.  4, 054003 (2015).

[42] Interplay between density and superconducting quantum critical fluctuations. S Caprara, N. Bergeal, J. Lesueur and M. Grilli, J. Phys. : Condens. Matter  27, 425701 (2015).

[41] Field-effect control of superconductivity and Rashba spin-orbit coupling in top-gated LaAlO3/SrTiO3 devices. S. Hurand, A. Jouan, C. Feuillet-Palma, G. Singh, J. Biscaras, E. Lesne, N. Reyren, A. Barthélémy, M. Bibes, J. E. Villegas, C. Ulysse, X. Lafosse, M. Pannetier-Lecoeur, S. Caprara, M. Grilli, J. Lesueur & N. Bergeal, Sci. Rep. 5, 12751 (2015).

[40] Engineering 2D-superconductivity and Rashba spin-orbit coupling by selective orbital occupancy. G. Herranz, G. Singh, N. Bergeal, A. Jouan, J. Lesueur, J. Gazquez, M. Varela, M. Scigaj, N. Dix, F. Sanchez and J. Fontcuberta, Nature Commun. 6, 6028 (2015).

[39] Inhomogeneous multi-carrier superconductivity at LaXO3/SrTiO3 (X = Al or Ti) oxide interfaces. S Caprara, D Bucheli, N. Scopigno, N. Bergeal, J. Biscaras, S. Hurand,J. Lesueur and M. Grilli Supercond. Sci. Technol. 28, 014002 (2015).

[38] Limit of the electrostatic doping in two-dimensional electron gases of LaAlO3/SrTiO3. J. Biscaras, S. Hurand, C. Feuillet-Palma, A. Rastogi, R. C. Budhani, N. Reyren, E. Lesne, J. Lesueur & N. Bergeal, Sci. Rep. 4, 6788 (2014).

[37] Freezing and thawing of artificial ice by thermal switching of geometric frustration in magnetic flux lattices. J. Trastoy, M. Malnou, C. Ulysse, R.  Bernard, N. Bergeal, G.  Faini, J. Lesueur, J. Briatico, J. Villegas,  Nature Nanotech. 9 710-715 (2014)

[36]High-Tc superconducting Josephson mixers for terahertz heterodyne detection. M. Malnou, C. Feuillet-Palma, C. Ulysse, G. Faini, P. Febvre, M. Sirena, L. Olanier, J. Lesueur & N. Bergeal, J. Appl. Phys. 116, 074505 (2014).

[35] HTS ion damage Josephson junction technology for SQUID arrays. S. Ouanani, J. Kermorvant, D. Crete, Y. Lemaitre, Mage, J-C. Mage B. Marcilhac, N. Bergeal, M. Malnou, J. Lesueur, D. Mailly, C. Ulysse, Journal of Physics Conference Series, ‏ 507 , 042008  (2014)

[34]Multi-band superconductivity and nanoscale inhomogeneity at oxide interfaces; S. Caprara, J. Biscaras, N. Bergeal, D. Bucheli, S. Hurand, C. Feuillet-Palma, A. Rastogi, R. C. Budhani, J. Lesueur, M. Grilli, Phys. Rev. B Rapid Comm. 88, 020504(R) (2013)

[33]Multiple quantum criticality in a two-dimensional superconductor.  J. Biscaras, N. Bergeal, S.  Hurand, C. Feuillet-Palma, A. Rastogi, R. C. Budhani, M. Grilli, S. Caprara, J. Lesueur, Nature Mat. 12, 542 (2013)

[32]Full coherent frequency conversion between two propagating microwave modes.  B. Abdo,  K. Sliwa, F. Schackert, N. Bergeal, M. Hatridge, L. Frunzio, D. A. Stone, M. Devoret Phys. Rev. Lett. 110, 173902 (2013).

[31]YBCO Josephson Junctions and Striplines for RSFQ Circuits Made by Ion Irradiation

T. Wolf, N. Bergeal, Lesueur, J. Lesueur, C. J.  Fourie, G. Faini, C. Ulysse, P. Febvre. IEEE Trans. Appl. Supercond. 23, 1101205 (2013).

[30] Effect of Barrier Geometry for HTS Ion Damage Josephson Junctions. S. Ouanani,D. Crete, J. Kermorvant, Y. Lemaitre, B. Marcilhac, J-C. Mage, J. Lesueur, N. Bergeal, C. Feuillet-Palma, C. Ulysse, D. Mailly, IEEE 14th International Superconductive Electronics Conference (ISEC) (2013).

[29] Magnetic field induced transition in superconducting LaTiO3/SrTiO3 interfaces. J. Biscaras , N. Bergeal , S. Hurand, C. Feuillet-Palma, A. Rastogi, R. C. Budhani, M. Grilli, S. Caprara , J. Lesueur, Journal of Physics Conference Series, ‏ 449 , UNSP 012035   (2013)

[28]Toward terahertz heterodyne detection with superconducting Josephson nano-junctions M. Malnou, A. Luo, T. Wolf, Y. Wang, C. Feuillet-Palma, C. Ulysse, G. Faini, P. Febvre, J. Lesueur, N. Bergeal. Appl. Phys. Lett. 101, 233505 (2012)

[27]Structural and electrical characterization of ultra-thin SrTiO3 tunnel barriers grown over YBa2Cu3O7 electrodes for the development of high Tc Josephson junctions. L. Aviles Felix, M. Sirena, L. A. Aguero Guzman, J Gonzalez Sutter, S. Pons Vargas, L. B. Steren, R. Bernard, J. Trastoy, J. E. Villegas, J. Briatico, N. Bergeal, J. Lesueur, G. Faini,

Nanotechnology  23, 495715 (2012)

[26]Imaging current paths in complex conductors by scanning fluorescence microscopy. L. Aigouy, J. Lesueur,  N. Bergeal, M. Mortier Appl. Phys. Lett. 101, 123113   (2012)

[25]Two-dimensional superconducting phase in LaTiO3/SrTiO3 heterostructures induced by high-mobility carrier doping. J. Biscaras, N. Bergeal, S. Hurand, C. Grossetête, A. Rastogi, R. C. Budhani, D. LeBoeuf, C. Proust, J. Lesueur. Phys. Rev. Lett. 108, 247004 (2012)

[24]Strong field-matching effects in superconducting YBa2Cu3O7−δ films with vortex energy landscapes engineered via masked ion irradiation. I. Swiecicki, C. Ulysse, T. Wolf, R. Bernard, N. Bergeal, J. Briatico, G. Faini, J. Lesueur, and Javier E. Villegas. Phys. Rev. B 85, 224502 (2012)

[23]Two-Mode Correlation of Microwave Quantum Noise Generated by Parametric Down-Conversion. N. Bergeal, F. Schackert, L. Frunzio, M.H. Devoret. Phys. Rev. Lett. 108, 123902 (2012)

[22]Structural and transport characterization of ultra thin Ba0.05Sr0.95TiO3 layers grown over Nb electrodes for the development of Josephson junctions. M.  Sirena, L.A. Felix, G.A.C. Vera, H.L.N. Fernandez, L.B. Steren, R. Bernard, J. Briatico, N. Bergeal, J. Lesueur, G. Faini. Appl. Phys. Lett. 100, 1, 012602 (2012)

[21]Mesoscopic resistor as a self-calibrating quantum noise source. N. Bergeal, F. Schackert, L. Frunzio and M. H. Devoret. Appl. Phys. Lett. 100, 203507 (2012).

[20]Imprinting nanoporous alumina patterns into the magneto-transport of oxide superconductors.Villegas, J. E. , Swiecicki, I. , Bernard, R. , Crassous, A. , Briatico, J. , Wolf, T.,  Bergeal, N. , Lesueur, J., Ulysse, C., Faini, G., Hallet, X., Piraux, L.  Nanotechnology, 22, 075302 (2011)

[19]Two-dimensional superconductivity at a Mott insulator/band insulator interface LaTiO3/SrTiO3. J. Biscaras, N. Bergeal, A. Kushwaha, T. Wolf, A. Rastogi, R.C. Budhani, J. Lesueur, Nature Commun. 1, 89 (2010).

[18]Phase preserving amplification near the quantum limit with a Josephson Ring Modulator. N. Bergeal, F. Schackert, M. Metcalfe, R. Vijay, V. E. Manucharyan, L. Frunzio, D. E. Prober, R. J. Schoelkopf, S. M. Girvin, M. H. Devoret. Nature, 465, 64 (2010).

[17]Analog information processing at the quantum limit with a Josephson ring modulator. N. Bergeal, R. Vijay, V. E. Manucharyan, I. Siddiqi, R. J. Schoelkopf, S. M. Girvin, M. H. Devoret. Nature Phys. 6, 296-302 (2010).

[16]Annealing of ion irradiated high TC Josephson junctions studied by numerical simulations.  M. Sirena, S. Matzen, N. Bergeal, J. Lesueur, G. Faini, R. Bernard, J. Briatico, and D. G. Crété  J. Appl. Phys. 105, 023910 (2009).

[15]  Amplifying quantum signals with Josephson tunnel junction circuits M. H. Devoret, B . Huard, N. Bergeal, R. J. Schoelkopf and S. M. Girvin, proc. int. school of physics enrico fermi, p. 151 (ios press, amsterdam, 2009).

[14]Mapping the superconducting condensate surrounding a vortex in superconducting V3Si using a superconducting MgB2 tip in a scanning tunneling microscope. N. Bergeal, Y. Noat, T. Cren, Th. Proslier,  V. Dubost, F. Debontridder, A. Zimmers, D. Roditchev, W. Sacks, J. Marcus Phys. Rev B 78, 140507R   (2008).

[13] Annealing effect on the reproducibility of Josephson Junctions made by ion irradiation. M. Sirena, S. Matzen, N. Bergeal,  J. Lesueur, G. Faini, R. Bernard, J.  Briatico, D. Crete, Journal of Physics Conference Series , 97 UNSP 012073   (2008).

[12]Probing pairing fluctuations in the pseudogap state of cuprates by Josephson effect. N. Bergeal, J. Lesueur,  M. Aprili, G. Faini, B. Leridon and J-P. Contour , Nature Phys.

4, 608 – 611  (2008).

[11]Improving the IcRn product and the reproducibility of high Tc Josephson junctions made by ion irradiation. M. Sirena, X. Fabrèges, N. Bergeal, J. Lesueur, G. Faini, R. Bernard and J. Briatico Appl. Phys. Lett.  91, 262508 (2007).

[10]Annealing effect on the reproducibility of Josephson Junctions made by ion irradiation. M. Sirena, S. Matzen, N. Bergeal, J. Lesueur, G. Faini, R. Bernard, and J. Briatico, Journal of Physics  97, 012073 (2008).

[9]Improving HTc Josephson Junctions (HTc JJ) by annealing: the role of vacancy-interstitial annihilation. M. Sirena, S. Matzen, N. Bergeal, J. Lesueur, G. Faini, R. Bernard, and J. Briatico, Appl. Phys. Lett. 91, 142506 (2007)

[8]Using ion irradiation de make High-Tc Josephson junctions. N. Bergeal,  J. Lesueur, M. Sirena, M. Aprili, J-P. Contour and B. Leridon , J. Appl. Phys. 102, 083903 (2007).

[7]Study and optimization of ion-irradiated High Tc Josephson nanoJunctions by Monte Carlo simulations. M. Sirena, N. Bergeal, J. Lesueur. G. Faini, R. Bernard, J. Briatico, D. Crete and J-P. Contour, J. Appl. Phys. 101, 123925 (2007).

[6]High-Tc Josephson nanoJunctions made by ion irradiation : characteristics and reproducibility. J. Lesueur, N. Bergeal, M. Sirena, X. Grison, G. Faini, M Aprili and J-P. Contour, IEEE Trans. Appl. Supercond., 17, 963 (2007).

[5]Response to « Comment on `High Tc superconducting quantum interference devices made by ion irradiation’’. N. Bergeal, M. Sirena, J. Lesueur, G. Faini, M. Aprili, J-P. Contour, Appl. Phys. Lett. 90, 136102 (2007).

[4]Scanning tunneling spectroscopy on the newly discovered superconductor CaC6N. Bergeal, V. Dubost,   Y. Noat, W. Sacks, D. Roditchev N. Emery, C. Hérold, J-F. Marêché, P. Lagrange, and G. Loupias. Phys. Rev. Lett. 97, 077003 (2006).

[3]High-Tc Superconducting Quantum Interferences Devices made by ion irradiation. N. Bergeal, J. Lesueur, G. Faini, M. Aprili, J-P. Contour, Appl. Phys. Lett. 89, 112515 (2006).

[2]High Quality Planar High-Tc Josephson Junctions. N. Bergeal, X. Grison, J. Lesueur, G. Faini, M. Aprili, J. P. Contour, Appl. Phys. Lett. 87, 102502 (2005).

[1]Observation of sonoluminescing bubble motion at the rebounding phase. M. Kaji, N. Bergeal, T. Asase and Y. Watanabe. Jpn. J. Appl. Phys 41, 3250-3251 (2002).