Publications

2019

Ambient Effects on Photogating in MoS₂ Photodetectors,  P. Han, E. Adler, Y. Liu, L. St. Marie, A. El Fatimy^†, S. Melis, E. Van Keuren and P. Barbara, Nanotechnology 30, 284004 (2019). https://iopscience.iop.org/article/10.1088/1361-6528/ab149e

Effect of defect-induced cooling in graphene hot-electron bolometers, A. El Fatimy, P. Han, N. Quirk, L. St. Marie, M. T. Dejarld, R. L. Myers-Ward, K. Daniels, S. Pavunny, D.  K. Gaskill, Yigit Aytac, T. E. Murphy and P. Barbara, Carbon 154, 497-502 (2019). https://doi.org/10.1016/j.carbon.2019.08.019

2018

Highly Sensitive MoS2 Photodetectors with Graphene Contacts, P. Han, L. S.  Marie, Q. Wang, N. Quirk, A. El Fatimy, M. Ishigami, P. Barbara, Nanotechnology, https://doi.org/10.1088/1361-6528/aab4bb

Ultra-broadband photodetectors based on epitaxial graphene quantum dots, A. El Fatimy, A. Nath, B. D. Kong, A. K. Boyd, R. L. Myers-Ward, K. Daniels, M. M. Jadidi, T. E. Murphy, D. K. Gaskill, P. Barbara, Nanophotonics, https://doi.org/10.1515/nanoph-2017-0100

2016

Epitaxial graphene quantum dots for high-performance terahertz bolometers, A. El Fatimy, R. L. Myers-Ward, A. K. Boyd, K. M. Daniels, D. K. Gaskill and P. Barbara, Nature Nanotechnology DOI:10.1038/nnano.2015.303

2015

Electronic Transport and Possible Superconductivity at Van Hove Singularities in Carbon Nanotubes, Y. Yang, G. Fedorov, S. E. Shafranjuk, T. M. Klapwijk, B. K. Cooper, R. M. Lewis, C. J. Lobb, and P. Barbara, Nano Letters DOI:10.1021/acs.nanolett.5b02564

Understanding the Electrical Response and Sensing Mechanism of Carbon-Nanotube-Based Gas Sensors, I. Dube, D. Jimenez, G. Fedorov, A. Boyd, I. Gayduchenko, M. Paranjape, P. Barbara, Carbon 87, 330-337 (2015). https://doi.org/10.1016/j.carbon.2015.01.060

Low Carrier Density Epitaxial Graphene Devices On SiC, Y. Yang, L.I. Huang, Y. Fukuyama, F.H. Liu, M. A. Real, P. Barbara, C. T. Liang, D. B. Newell, and R. E. Elmquist, Small 11, 90-95 (2015). https://doi.org/10.1002/smll.201400989

Indium Tin Oxide Nanowire Networks as Effective UV/VIS Photodetection Platforms,  S. Zhao, D. Choi, T. Lee, A. K. Boyd, P. Barbara, E. Van Keuren, and Jong-In Hahm, The Journal of Physical Chemistry C 119, 14483-14489 (2015). https://doi.org/10.1021/jp506074c

2014

Gas sensing mechanism of carbon nanotubes: From single tubes to high-density networks,  Boyd, A. K., Dube I., Fedorov G., Paranjape M., and Barbara P., Carbon 69, 417-423 (2014) https://doi.org/10.1016/j.carbon.2013.12.044

2013

Coherent nonlocal transport in quantum wires with strongly coupled electrodes, Yang, Y., Fedorov G., Barbara P., Shafranjuk S. E., Cooper B. K., Lewis R. M., and Lobb C. J., Physical Review B, Volume 87, p.045403-045408, (2013) https://doi.org/10.1103/PhysRevB.87.045403

Effect of back-gate on contact resistance and on channel conductance in graphene-based field-effect transistors, Di Bartolomeo, A., Santandrea S., Giubileo F., Romeo F., Petrosino M., Citro R., Barbara P., Lupina G., Schroeder T., and Rubino A., Diamond and Related Materials, Volume 23, p.19-23, (2013) https://doi.org/10.1016/j.diamond.2013.06.002

Electron-hole transport and photovoltaic effect in gated MoS2 Schottky junctions., Fontana, Marcio, Deppe Tristan, Boyd A. K., Rinzan M., Liu A. Y., Paranjape M., and Barbara P., Scientific Reports, Volume 3, p.1634, (2013) https://doi.org/10.1038/srep0163
 

2012

Carbon Nanotube Quantum Dots As Highly Sensitive Terahertz-Cooled Spectrometers., Rinzan, M., Jankins G., Drew H. D., Shafranjuk S. E., and Barbara P., Nano Letters, Volume 12, Number 6, p.3097-3100, (2012) https://doi.org/10.1021/nl300975h

Interplay between Intrinsic and Contact Phenomena in Carbon Nanotube Devices: From Exponential Magnetoresistance to Chemical Sensing, Fedorov, G., Eletskiy A. V., Barbara P., Paranjape M., Smirnov D., and Jimenez D., FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES, Volume 20, Number 4-7, p.405-410, (2012) https://doi.org/10.1080/1536383X.2012.655220

The search of superconductivity at van Hove singularities in carbon nanotubes, Yang, Y., Fedorov G., Zhang J., Tselev A., Shafranjuk S. E., and Barbara P., Superconductor Science, and Technology, Volume 25, p.124005-124014, (2012) DOI 10.1088/0953-2048/25/12/124005
 

2010

Electrical properties and memory effects of field-effect transistors from networks of single- and double-walled carbon nanotubes, Di Bartolomeo, A., Rinzan M., Boyd A. K., Yang Y. F., Guadagno L., Giubileo F., and Barbara P., Nanotechnology, Volume 21, p.115204, (2010) https://doi.org/10.1088/0957-4484/21/11/115204

Novel In-Situ Decoration of Single-Walled Carbon Nanotube Transistors with Metal Nanoparticles, Zhou, J., Barbara P., and Paranjape M., Journal of Nanoscience and Nanotechnology, Volume 10, p.3890-3894, (2010) https://doi.org/10.1166/jnn.2010.2005

Record Endurance for Single-Walled Carbon Nanotube–Based Memory Cell, Di Bartolomeo, A., Yang Y., Rinzan M., Boyd A. K., and Barbara P., Nanoscale Research Letters, (2010) https://doi.org/10.1007/s11671-010-9727-6

Tuning the bandgap of semiconducting carbon nanotubes by an axial magnetic field, Fedorov, G., Barbara P., Smirnov D., Jimenez D., and Roche S., Applied Physics Letters, Volume 96, p.132101-132103, (2010) Abstract https://doi.org/10.1063/1.3360214

2009

Carbon nanotubes as nanoscale probes of the superconducting proximity effect in Pd-Nb junctions, Tselev, A., Yang Y. F., Zhang J., Barbara P., andShafraniuk S., Physical Review B, Volume 80, Number 5, p.054504, (2009) https://doi.org/10.1103/PhysRevB.80.054504
 

2008

Origins of 1/f noise in individual semiconducting carbon nanotube field-effect transistors, Tobias, D., Ishigami M., Tselev A., Barbara P., Williams E. D., Lobb C. J., and Fuhrer M. S., Physical Review B, Jan, Volume 77, Issue 3, (2008) https://doi.org/10.1103/PhysRevB.77.033407
 

2007

High-crystalline single- and double-walled carbon nanotube mats grown by chemical vapor deposition, Lamura, G., Andreone A., Yang Y., Barbara P., Vigolo B., Herold C., Mareche J. F., Lagrange P., Cazayous M., Sacuto A., et al., Journal of Physical Chemistry C, Oct, Volume 111, Issue 42, p.15154-15159, (2007) https://doi.org/10.1021/jp073940f

Exploring the magnetically induced field effect in carbon nanotube-based devices, Fedorov, G., Tselev A., Jimenez D., Latil S., Kalugin N. G., Barbara P., Smirnov D., and Roche S., 17th International Conference on Electronic Properties of Two-Dimensional Systems, Jul 15-20, Genoa, ITALY, p.1010-1013, (2007) https://doi.org/10.1016/j.physe.2007.08.123

Unveiling the magnetically induced field-effect in carbon nanotubes devices, Fedorov, G., Tselev A., Jimenez D., Latil S., Kalugin N. G., Barbara P., Smirnov D., and Roche S., 13th International Conference on Narrow Gap Semiconductors, Jul 08-12, Guildford, ENGLAND, p.111-113, (2007) https://doi.org/10.1007/978-1-4020-8425-6_27

Magnetically induced field effect in carbon nanotube devices, Fedorov, G., Tselev A., Jimenez D., Latil S., Kalugin N. G., Barbara P., Smirnov D., and Roche S., Nano Letters, Apr, Volume 7, Issue 4, p.960-964, (2007) https://doi.org/10.1021/nl063029v
 

2006

Zero-bias anomaly and possible superconductivity in single-walled carbon nanotubes, Zhang, J., Tselev A., Yang Y. F., Hatton K., Barbara P., andShafraniuk S., Physical Review B, Oct, Volume 74, Issue 15, (2006) https://doi.org/10.1103/PhysRevB.74.155414

Mechanism of NO2 detection in carbon nanotube field effect transistor chemical sensors, Zhang, J., Boyd A., Tselev A., Paranjape M., and Barbara P., Applied Physics Letters, Mar, Volume 88, Issue 12, (2006) https://doi.org/10.1063/1.2187510

Probing nanotube-based ambipolar FET by a magnetic field, Fedorov, G., Smirnov D., Tselev A., Barbara P., Kalugin N., Jimenez D., Latil S., and Rochel S., 28th International Conference on the Physics of Semiconductors (ICPS-28), Jul 24-28, Vienna, AUSTRIA, p.1049-1050, (2006) https://doi.org/10.1063/1.2730257

2004

A photolithographic process for fabrication of devices with isolated single-walled carbon nanotubes, Tselev, A., Hatton K., Fuhrer M. S., Paranjape M., and Barbara P., Nanotechnology, Nov, Volume 15, Issue 11, p.1475-1478, (2004) doi.org/10.1088/0957-4484/15/11/017

2003

Observation and a model for resonances in one-dimensional unshunted Josephson-junction arrays with ground planes, Vasilić, B., Ott E., Antonsen T., Barbara P., and Lobb C. J., Physical Review B, Jul, Volume 68, Issue 2, (2003) https://doi.org/10.1103/PhysRevB.68.024521

Synchronization of underdamped Josephson-junction arrays, Filatrella, G., Pedersen N. F., Lobb C. J., and Barbara P., European Physical Journal B, Jul, Volume 34, Issue 1, p.3-8, (2003) https://doi.org/10.1140/epjb/e2003-00190-7

2002

Direct observation of a threshold for coherent radiation in unshunted Josephson-junction arrays with ground planes, Vasilić, B., Barbara P., Shitov S. V., and Lobb C. J., Physical Review B, May, Volume 65, Issue 18, (2002) https://doi.org/10.1103/PhysRevB.65.180503
 

2001

Mutual-inductance route to the paramagnetic Meissner effect in two-dimensional Josephson-junction arrays, De Leo, C., Rotoli G., Barbara P., Nielsen A. P., and Lobb C. J., Physical Review B, Oct, Volume 64, Issue 14, (2001) https://doi.org/10.1103/PhysRevB.64.144518

2001

Magnetic imaging of YBCO on RABiTS using a squid microscope, Nielsen, A. P., Kerchner H. R., Lobb C. J., and Barbara P., Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference, Jul 16-20, Madison, Wi, p.1134-1141, (2001) https://doi.org/10.1063/1.1472658

Josephson-junction arrays as high-efficiency sources of coherent millimeter-wave radiation, Vasilić, B., Shitov S. V., Lobb C. J., and Barbara P., Applied Physics Letters, Feb, Volume 78, Issue 8, p.1137-1139, (2001) https://doi.org/10.1063/1.1350431

Emission of radiation from square arrays of stacked Josephson junctions, Filatrella, G., Straughn B., and Barbara P., Journal of Applied Physics, Dec, Volume 90, Issue 11, p.5675-5679, (2001) https://doi.org/10.1063/1.1412576

2000

Constant-voltage resonant steps in underdamped Josephson-junction arrays and possibilities for optimal millimeter-wave power output, Vasilić, B., Barbara P., Shitov S. V., and Lobb C. J., 2000 Applied Superconductivity Conference, Sep 17-22, Virginia Beach, Virginia, p.1188-1190, (2000) Abstract https://doi.org/10.1109/77.919561

Paramagnetic Meissner effect in multiply-connected superconductors, Nielsen, A. P., Cawthorne A. B., Barbara P., Wellstood F. C., Lobb C. J., Newrock R. S., and Forrester M. G., Physical Review B, Dec, Volume 62, Issue 21, p.14380-14383, (2000) https://doi.org/10.1103/PhysRevB.62.14380

Magnetic properties of SIS and SNS Josephson junction arrays, Maluf, W., Cecato G. M., Barbara P., Lobb C. J., Newrock R. S., and Araujo-Moreira F. M., International Conference on Magnetism, Aug 06-11, Recife, Brazil, p.290-292, (2000) https://doi.org/10.1016/S0304-8853(00)01345-7

1999

Reentrant ac magnetic susceptibility in Josephson-junction arrays: An alternative explanation for the paramagnetic Meissner effect, Barbara, P., Araujo-Moreira F. M., Cawthorne A. B., and Lobb C. J., Physical Review B, Sep, Volume 60, Issue 10, p.7489-7495, (1999) Abstract https://doi.org/10.1103/PhysRevLett.78.4625

Synchronized oscillations in Josephson junction arrays: The role of distributed coupling, Cawthorne, A. B., Barbara P., Shitov S. V., Lobb C. J., Wiesenfeld K., and Zangwill A., Physical Review B, Sep, Volume 60, Issue 10, p.7575-7578, (1999) https://doi.org/10.1103/PhysRevB.60.7575

Stimulated emission and amplification in Josephson junction arrays, Barbara, P., Cawthorne A. B., Shitov S. V., and Lobb C. J., Physical Review Letters, Mar, Volume 82, Issue 9, p.1963-1966, (1999) https://doi.org/10.1103/PhysRevLett.82.196

1997

Flux-flow drag in coupled Josephson junctions, Parmentier, R. D., Barbara P., Costabile G., Danna A., Malomed B. A., and Soriano C., Physical Review B, Jun, Volume 55, Issue 22, p.15165-15173, (1997) https://link.aps.org/doi/10.1103/PhysRevB.55.15165

Reentrant ac magnetic susceptibility in Josephson-junction arrays, Araujo Moreira, F. M., Barbara P., Cawthorne A. B., and Lobb C. J., Physical Review Letters, Jun, Volume 78, Issue 24, p.4625-4628, (1997) https://doi.org/10.1103/PhysRevLett.78.4625

1996

Model for the fine structure of zero field steps in long Josephson tunnel junctions and its comparison with experiment, Barbara, P., Monaco R., and Ustinov A. V., Journal of Applied Physics, Jan, Volume 79, Issue 1, p.327-333, (1996) https://doi.org/10.1063/1.360834

High-frequency properties of two-dimensional Josephson junction arrays, Cawthorne, A. B., Barbara P., and Lobb C. J., 1996 Applied Superconductivity Conference, Aug 25-30, Pittsburgh, Pa, p.3403-3406, (1996) https://doi.org/10.1109/77.622109

1994

FABRICATION AND PROPERTIES OF VERTICALLY STACKED NB AL-ALOX NB JOSEPHSON TUNNEL-JUNCTIONS, Capogna, L., Costabile G.,Barbara P., Martucciello N., and Monaco R. , 15th International Cryogenic Engineering Conference (ICEC 15), Jun 07-10, Genova, Italy, p.895-898, (1994) http://dx.doi.org/10.1016/S0011-2275(05)80211-5

EXPERIMENTAL-STUDY OF THE INTERACTION BETWEEN FLUXON ARRAYS IN STACKED JOSEPHSON-JUNCTIONS, Barbara, P., Ustinov A., andCostabile G. , Physics Letters A, Aug, Volume 191, Issue 5-6, p.443-448, (1994) https://doi.org/10.1016/0375-9601(94)90801-X

1993

FINE-STRUCTURES ON ZERO-FIELD STEPS IN LOW-LOSS JOSEPHSON TUNNEL-JUNCTIONS, Monaco, R., Barbara P., and Mygind J., Physical Review B, May, Volume 47, Issue 18, p.12292-12295, (1993) https://doi.org/10.1103/PhysRevB.47.12292

FABRICATION OF HIGH-QUALITY NB/AL/ALOX/NB STACKED JOSEPHSON-JUNCTIONS, Barbara, P., and Costabile G., 20th International Conference on Low Temperature Physics, Aug 04-11, Eugene, Or, p.69-70, (1993) https://doi.org/10.1016/0921-4526(94)90364-6

NB/AL/ALOX/NB STACKED LONG JOSEPHSON-JUNCTIONS, Barbara, P., Costabile G., Mygind J., and Pedersen N. F., 20th International Conference on Low Temperature Physics, Aug 04-11, Eugene, Or, p.71-72, (1993) https://doi.org/10.1016/0921-4526(94)90365-4

STABILITY OF THE ZERO-VOLTAGE STATE IN LONG JOSEPHSON-JUNCTIONS COUPLED TO A MICROWAVE RESONATOR, Barbara, P., Costabile G., Cappetta L., and Carapella G., 20th International Conference on Low Temperature Physics, Aug 04-11, Eugene, Or, p.67-68, (1993) https://doi.org/10.1016/0921-4526(94)90363-8

1992

COUPLING OF A JOSEPHSON SOLITON OSCILLATOR TO COPLANAR AND MICROSTRIP CAVITIES, Barbara, P., Davidson A., Filatrella G., Holm J., Mygind J., and Pedersen N. F., Physics Letters A, May, Volume 165, Issue 3, p.241-244, (1992) https://doi.org/10.1016/0375-9601(92)90043-L

SUBHARMONIC SELF-LOCKING OF A JOSEPHSON SOLITON OSCILLATOR COUPLED TO A RESONATOR, Holm, J., Barbara P., Davidson A., Filatrella G., Mygind J., and Pedersen N. F., NATO Advanced Study Institute on Future Directions of Nonlinear Dynamics in Physical and Biological Systems, in honor of Alwyn Scotts 60th Birthday, Jul 23-Aug 01, Lyngby, Denmark, p.35-37, (1992)  https://doi.org/10.1016/0167-2789(93)90024-U