SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Bauch Thilo 1972) "

Sökning: WFRF:(Bauch Thilo 1972)

  • Resultat 61-70 av 126
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
61.
  • He, Hans, 1989, et al. (författare)
  • Uniform doping of graphene close to the Dirac point by polymer-assisted assembly of molecular dopants
  • 2018
  • Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723 .- 2041-1723. ; 9:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Tuning the charge carrier density of two-dimensional (2D) materials by incorporating dopants into the crystal lattice is a challenging task. An attractive alternative is the surface transfer doping by adsorption of molecules on 2D crystals, which can lead to ordered molecular arrays. However, such systems, demonstrated in ultra-high vacuum conditions (UHV), are often unstable in ambient conditions. Here we show that air-stable doping of epitaxial graphene on SiC—achieved by spin-coating deposition of 2,3,5,6-tetrafluoro-tetracyano-quino-dimethane (F4TCNQ) incorporated in poly(methyl-methacrylate)—proceeds via the spontaneous accumulation of dopants at the graphene-polymer interface and by the formation of a charge-transfer complex that yields low-disorder, charge-neutral, large-area graphene with carrier mobilities ~70 000 cm2V−1s−1at cryogenic temperatures. The assembly of dopants on 2D materials assisted by a polymer matrix, demonstrated by spin-coating wafer-scale substrates in ambient conditions, opens up a scalable technological route toward expanding the functionality of 2D materials.
  •  
62.
  • Johansson, Jesper, 1979, et al. (författare)
  • Properties of inductance and magnetic penetration depth in (103)-oriented YBa2Cu3O7-delta thin films
  • 2009
  • Ingår i: Physical Review B - Condensed Matter and Materials Physics. - 2469-9950 .- 2469-9969. ; 79:21, s. 214513-
  • Tidskriftsartikel (refereegranskat)abstract
    • We present a study of the anisotropy of the inductance in (103) YBa2Cu3O7-delta (YBCO) films. YBCO superconducting quantum interference devices (SQUIDs) were fabricated by the biepitaxial technique. SQUIDs with (001)- and (103)-oriented YBCO electrodes characterized by different grain-boundary angles were realized on the same chip. Two extrainjection lines were attached to the (103) YBCO electrode. These devices, when operated in current injection mode, allow us to measure the inductance of the (103) YBCO electrode. We have found that the inductance L of the (103) YBCO can differ by a factor of 20 in the two extreme cases: L determined by current transport parallel to the ab planes and L dominated by the transport in the c-axis direction. The full in-plane angular dependence of the inductance has been obtained by considering geometrically identical SQUIDs oriented with different angles with respect to the [100] direction of the (103) film. From these measurements, we have determined the London penetration depths in the ab direction lambda(ab) and the c direction lambda(c) and their temperature dependence.
  •  
63.
  • Jouault, B., et al. (författare)
  • Josephson Coupling in Junctions Made of Monolayer Graphene Grown on SiC
  • 2016
  • Ingår i: Journal of Superconductivity and Novel Magnetism. - : Springer Science and Business Media LLC. - 1557-1947 .- 1557-1939. ; 29:5, s. 1145-1150
  • Tidskriftsartikel (refereegranskat)abstract
    • Chemical vapor deposition has proved to be successful in producing graphene samples on silicon carbide (SiC) homogeneous at the centimeter scale in terms of Hall conductance quantization. Here, we report on the realization of co-planar diffusive Al/ monolayer graphene/ Al junctions on the same graphene sheet, with separations between the electrodes down to 200 nm. Robust Josephson coupling has been measured for separations not larger than 300 nm. Transport properties are reproducible on different junctions and indicate that graphene on SiC substrates is a concrete candidate to provide scalability of hybrid Josephson graphene/superconductor devices.
  •  
64.
  • Kaiser, C., et al. (författare)
  • Quantum phase dynamics in an LC shunted Josephson junction
  • 2011
  • Ingår i: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 109:9
  • Tidskriftsartikel (refereegranskat)abstract
    • We have studied both theoretically and experimentally how an LC series circuit connected in parallel to a Josephson junction influences the Josephson dynamics. The presence of the shell circuit introduces two energy scales, which in specific cases, can strongly differ from the plasma frequency of the isolated junction. Josephson junctions were manufactured using the Nb/Al-AlOx/Nb fabrication technology with various on-chip LC shunt circuits. Spectroscopic measurements in the quantum limit show excellent agreement with theory taking into account the shunt inductance and capacitance in the resistively and capacitively shunted junction model. The results clearly show that the dynamics of the system are two-dimensional, resulting in two resonant modes of the system. These findings have important implications for the design and operation of Josephson junction based quantum bits. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3581139]
  •  
65.
  • Kalaboukhov, Alexei, 1975, et al. (författare)
  • Homogeneous superconductivity at the LaAlO3/SrTiO3 interface probed by nanoscale transport
  • 2017
  • Ingår i: Physical Review B. - 2469-9969 .- 2469-9950. ; 96:18
  • Tidskriftsartikel (refereegranskat)abstract
    • An interface between LaAlO3 and SrTiO3 (LAO/STO) may host two-dimensional superconductivity, strong spin-orbit coupling, and magnetic ordering. There are indications that the interfacial superconducting layer is nonhomogeneous at the nanoscale. The presence of inhomogeneities may have strong implications on the superconducting transport properties and lead to formation of weak links between superconducting regions. In this paper, we report on the temperature and magnetic field dependence of superconducting transport in single nanowires and nanorings fabricated in a LAO/STO interface. The analysis of data proves that our nanostructures behave like uniform superconducting filaments carrying a critical current close to the theoretical Ginzburg-Landau depairing limit. Furthermore, we unexpectedly find an enhancement of the critical current of LAO/STO nanowires and nanorings at low temperature when a magnetic field is applied. Our results point towards the coexistence of a homogeneous interfacial superconductivity and spatially separated magnetism at the LAO/STO interface.
  •  
66.
  • Kawabata, Shiro, et al. (författare)
  • Theory of two-dimensional macroscopic quantum tunneling in a Josephson junction coupled with an LC circuit
  • 2009
  • Ingår i: Journal of Physics: Conference Series. - : IOP Publishing. - 1742-6588 .- 1742-6596. ; 150:5, s. 052105-
  • Konferensbidrag (refereegranskat)abstract
    • We investigate classical thermal activation (TA) and macroscopic quantum tunneling (MQT) for a Josephson junction coupled with an LC circuit theoretically. The TA and MQT escape rate are calculated analytically by taking into account the two-dimensional nature of the classical and quantum phase dynamics. We find that the MQT escape rate is largely suppressed by the coupling to the LC circuit. On the other hand, this coupling gives rise to slight reduction of the TA escape rate. These results are relevant for the interpretation of a recent experiment on the MQT and TA phenomena in grain boundary YBCO Josephson junctions.
  •  
67.
  • Kawabata, Shiro, et al. (författare)
  • Theory of two-dimensional macroscopic quantum tunneling in YBa2Cu3O7-delta Josephson junctions coupled to an LC circuit
  • 2009
  • Ingår i: Physical Review B - Condensed Matter and Materials Physics. - 2469-9950 .- 2469-9969. ; 80:17, s. 174513-
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigate classical thermal activation (TA) and macroscopic quantum tunneling (MQT) for a YBa2Cu3O7−δ (YBCO) Josephson junction coupled to an LC circuit theoretically. Due to the coupling between the junction and the LC circuit, the macroscopic phase dynamics can be described as the escape process of a fictitious particle with an anisotropic mass moving in a two-dimensional potential. We analytically calculate the escape rate including both the TA and MQT regime by taking into account the peculiar dynamical nature of the system. In addtion to large suppression of the MQT rate at zero temperature, we study details of the temperature dependence of the escape rate across a crossover region. These results are in an excellent agreement with recent experimental data for the MQT and TA rate in a YBCO biepitaxial Josephson junction. Therefore the coupling to the LC circuit is essential in understanding the macroscopic quantum dynamics and the qubit operation based on the YBCO biepitaxial Josephson junctions.
  •  
68.
  • Kawabata, Shiro, et al. (författare)
  • TWO-DIMENSIONAL MACROSCOPIC QUANTUM DYNAMICS IN YBCO JOSEPHSON JUNCTIONS
  • 2009
  • Ingår i: International Journal of Modern Physics B. - 0217-9792. ; 23:20-21, s. 4329-
  • Tidskriftsartikel (refereegranskat)abstract
    • We theoretically study classical thermal activation (TA) and macroscopic quantum tunneling (MQT) for a YBa2Cu3O7-δ(YBCO) Josephson junction coupled with an LC circuit. The TA and MQT escape rate are calculated by taking into account the two-dimensional nature of the classical and quantum phase dynamics. We find that the MQT escape rate is largely suppressed by the coupling to the LC circuit. On the other hand, this coupling leads to the slight reduction of the TA escape rate. These results are relevant for the interpretation of a recent experiment on the MQT and TA phenomena in YBCO bi-epitaxial Josephson junctions.
  •  
69.
  •  
70.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 61-70 av 126
Typ av publikation
tidskriftsartikel (100)
konferensbidrag (21)
bokkapitel (4)
forskningsöversikt (1)
Typ av innehåll
refereegranskat (119)
övrigt vetenskapligt/konstnärligt (7)
Författare/redaktör
Bauch, Thilo, 1972 (126)
Lombardi, Floriana, ... (104)
Arpaia, Riccardo, 19 ... (35)
Trabaldo, Edoardo, 1 ... (17)
Tafuri, F. (16)
Charpentier, Sophie, ... (15)
visa fler...
Rotoli, G. (14)
Cedergren, Karin, 19 ... (14)
Tafuri, Francesco (14)
Delsing, Per, 1959 (13)
Kalaboukhov, Alexei, ... (13)
Golubev, D. (12)
Kubatkin, Sergey, 19 ... (11)
Arzeo, Marco, 1986 (11)
Baghdadi, Reza, 1984 (11)
Winkler, Dag, 1957 (10)
Claeson, Tord, 1938 (10)
Andersson, Eric, 199 ... (10)
Stornaiuolo, D. (10)
Lindström, Tobias, 1 ... (9)
Kunakova, Gunta, 198 ... (9)
Érts, Donats (9)
Nawaz, Shahid, 1978 (9)
Golubev, Dmitry (8)
Born, D (8)
Johansson, Jesper, 1 ... (7)
Montemurro, Domenico ... (7)
Barone, A. (7)
Lara Avila, Samuel, ... (6)
Andzane, J. (6)
galletti, luca, 1986 (6)
Danilov, Andrey, 196 ... (5)
Wang, Shu Min, 1963 (5)
Yakimova, Rositsa (5)
Cristiano, R. (5)
Ejrnaes, M. (5)
Parlato, L. (5)
Pepe, G. P. (5)
Gustafsson, David, 1 ... (5)
Song, Yuxin, 1981 (5)
He, Hans, 1989 (5)
Fogelström, Mikael, ... (4)
Wilson, Christopher, ... (4)
Olsson, Eva, 1960 (4)
Schleeh, Joel, 1986 (4)
Grahn, Jan, 1962 (4)
Niepce, David, 1984 (4)
Moschetti, Giuseppe, ... (4)
Pourkabirian, Arsala ... (4)
Harrysson Rodrigues, ... (4)
visa färre...
Lärosäte
Chalmers tekniska högskola (126)
Lunds universitet (3)
RISE (3)
Göteborgs universitet (2)
Linköpings universitet (2)
Kungliga Tekniska Högskolan (1)
visa fler...
Uppsala universitet (1)
visa färre...
Språk
Engelska (126)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (115)
Teknik (41)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy