July 2017

• EDISON20 – The 20th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures – is to be held at the Hyatt Regency Hotel, Buffalo, NY from July 17 – 21, 2017. The meeting serves as the premier forum for researchers working on the study of nonequilibrium phenomena in semiconductors, from all parts of the globe. Jonathan Bird is serving as the General Chair of the conference.
• Jonathan Bird was appointed as Chair of the Department of Electrical Engineering at the University at Buffalo.
• Jan Gluschke of the University of New South Wales is visiting for a three-week stay in the group. He will also give a contributed talk at EDISON20. Welcome Jan!

June 2017

• Jonathan Bird was awarded a US Patent (US 9,692,413 B2) describing "Configurable Exclusive-OR/Exclusive-NOR gate using magneto-electric tunnel junctions". Co-inventor is Prof. Andrew Marshall of UT Dallas.

May 2017

• Ripudaman Dixit joined NoMaD as a PhD student, and is working on the development of a "phonon cascade terahertz emitter". Welcome Ripudaman and good luck in your research!
• Sarah Frey joined NoMaD as an undergraduate researcher, and is working on studying measurement techniques for determination of differential conductance. Welcome Sarah!

March 2017

• Jonathan Bird visted the Max-Planck Institute for the Physics of Complex Systems in Dresden for discussions with his longstanding collaborator, Ingrid Rotter. While in Dresden, he also participated in the annual meeting of the Editorial Board of Semiconductor Science and Technology.

November 2016

• Jonathan Bird has been appointed to the Editorial Board of Semiconductor Science and Technology. He will serve an initial two-year term commencing from January 2017.
• Jonathan Bird was awarded a US Patent (US 9,503,805 B1) describing an "Exclusive-OR gate using magneto-electric tunnel junctions". Prof. Andrew Marshall of UT Dallas is a co-inventor on the patent.
• NEW FUNDING: Jonathan Bird received three years of renewal funding ($480K) from the Department of Energy to investigate nonlinear transport in two-dimensional semiconductors.

October 2016

• Jonas Fransson of Uppsala University visited Buffalo for discussions on our joint research on spin transport in graphene. Thanks for coming!
• NEW PAPER: M. Matsunaga, A. Higuchi, G. He, T. Yamada, P. Krüger, Y. Ochiai, Y. Gong, R. Vajtai, P. M. Ajayan, J. P. Bird, and N. Aoki, "Nanoscale-barrier formation induced by low-dose electron-beam exposure in ultrathin MoS2 transistors", ACS NANO 10, DOI: 10.1021/acsnano.6b05952 (2016).

September 2016

• NEW PAPER: G. He, H. Ramamoorthy, C.-P. Kwan, Y.-H. Lee, J. Nathawat, R. Somphonsane, M. Matsunaga, A. Higuchi, T. Yamanaka, N. Aoki, Y. Gong, X. Zhang, R. Vajtai, P. M. Ajayan, and J. P. Bird, "Thermally-assisted nonvolatile memory in monolayer MoS2 transistors", Nano Lett. 16, 6445 – 6451 (2016).
• Yao-Hsuen Lee successfuly completed her PhD thesis defense. Congratulations and good luck in your new job!

July 2016

• Jonathan Bird gave an invited seminar on NoMaD research on pulsed investigations of nonequilibrium transport in mesoscopic devices in the School of Physics at the University of New South Wales.
• Jonathan Bird was awarded a US Patent (US 9,368,208 B1) describing a "Non-volatile latch using magneto-electric and ferro-electric tunnel junctions". Co-inventors are Prof. Andrew Marshall of UT Dallas, Prof. Uttam Singisetti of UB, and Dr. Dmitri Nikonov of Intel Corporation.
• Jonathan Bird travelled to the University of New South Wales, Sydney, Australia to take up a four-week position as a visiting scholar in the School of Physics.
• Jonathan Bird gave an invited seminar on NoMaD research on non-Hermitian phenomena in mesoscopic devices at the Department of Physics of the University of Gottingen, Gottingen, Germany.

June 2016

• Jonathan Bird gave an invited talk on NoMaD research on non-Hermitian phenomena in mesoscopic devices at the International Workshop on Disordered Systems (IWDS10) in Brescia, Italy.
• Guanchen He successfuly completed his PhD thesis defense. Great job Guanchen, you will be sadly missed!

May 2016

• NEW PAPER: N. Sharma, J. P. Bird, P. A. Dowben, and A. Marshall, "Compact-device model development for the energy-delay analysis of magneto-electric magnetic tunnel junction structures", Semicond. Sci. Technol. 31, 065022 (2016).
• Jonathan Bird gave an invited talk on NoMaD research on mesoscopic devices driven far from equilibrium at a workshop on Interacting Quantum Systems Driven Out of Equilibrium, at Rice University, Houston, TX.

April 2016

• NEW PAPER: S. Xiao, Y. Yoon, Y.-H. Lee, J. P. Bird, Y. Ochiai, N. Aoki, J. L. Reno, and J. Fransson, "Detecting weak coupling in mesoscopic systems with a nonequilibrium Fano resonance", Phys. Rev. B 93, 165435 (2016).

March 2016

• Jonathan Bird was awarded a US Patent (US 9,276,040 B1) describing "Majority- and Minority-Gate Logic Schemes Based on Magneto-Electric Devices". Co-inventors are Prof. Andrew Marshall of UT Dallas and Prof. Peter Dowben of UNL.
• Jonathan Bird gave an invited talk on NoMaD research on velocity saturation in graphene at the APS March Meeting in Baltimore, MD.

February 2016

• Prof. Miao Zhao of the Chinese Academy of Sciences joined NOMAD for a year as a Visting Scholar Welcome Dr. Zhao!
• Jonathan Bird gave an invited talk at ICONN 2016 (The International Conference on Nanoscience and Nanotechnology) in Canberra, Australia.

January 2016

• Harihara Ramamoorthy joined Micron as a Process Engineer working on R&D in the area of advanced integration technologies. Congratulations Hari!

December 2015

• NEW PAPER: D. K. Ferry, R. Somphonsane, H. Ramamoorthy, and J. P. Bird, "Plasmon-mediated energy relaxation in graphene", Appl. Phys. Lett. 107, 262103 (2015).
• Harihara Ramamoorthy successfuly completed his PhD thesis defense. Great job Hari and perfect timing with your new paper in Nano Letters!
  
• NEW PAPER: H. Ramamoorthy, R. Somphonsane, J. Radice, G. He, C.-P. Kwan, and J. P. Bird, ““Freeing” graphene from its substrate: Observing intrinsic velocity saturation with rapid electrical pulsing”, Nano Lett. 16, 399 – 403 (2016).

November 2015

• Jonas Fransson of Uppsala University visited Buffalo for discussions on our joint research on transport in quantum point contacts and graphene. Thanks for coming!

October 2015

• Guanchen He successfuly completed his PhD proposal defense. Congratulations on a job well done!
  
• Yao-Hsuen "Mimi" Lee successfuly completed her PhD proposal defense. Great job Mimi!
  
• NEW PAPER: I. Rotter and J. P. Bird, “A review of progress in the physics of open quantum systems: theory and experiment”, Rep. Prog. Phys. 78, 114001 (2015).

September 2015

• Congratulations to Chun-Pui Kwan who won best-in-session prize for his talk at TECHCON 2015 (Austin, Tx) on studies of electrical resistivity in chromia crystals and thin films. Great job Chun!

July 2015

• NEW FUNDING: Jonathan Bird received three years of renewal funding ($195K) from the National Science Foundation to study spin-dependent transport in hybrid graphene/oxide devices. This collaborative proposal is coordinated with separate awards to Prof. P. Dowben (Univ. of Nebraska Lincoln) and Prof. J. Kelber (Univ. of North Texas).
• NEW PAPER: W. Gao, X. Wang, R. Chen, D. B. Eason, G. Strasser, J. P. Bird, and J. Kono, “Electroluminescence from GaAs/AlGaAs heterostructures in strong in-plane electric fields: Evidence for k- and real-space charge transfer”, ACS Photonics 2, 1155 – 1159 (2015).
• NEW PAPER: G. He, K. Ghosh, U. Singisetti, H. Ramamoorthy, R. Somphonsane, G. Bohra, M. Matsunaga, A. Higuchi, N. Aoki, S. Najmaei, Y. Gong, X. Zhang, R. Vajtai, P. M. Ajayan, and J. P. Bird, “Conduction mechanisms in CVD-grown monolayer MoS2 transistors: From variable-range hopping to velocity saturation”, Nano Lett. 15, 5052 – 5058 (2015).

June 2015

• There was large NoMaD representation at EDISON'19 (The 19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures) in Salamanca, Spain. Contributed talks were presented by Harihara Ramamoorthy (transient studies of drift-velocity saturation in graphene) and Jonathan Bird (protected-subband formation in quantum point contacts subjected to extreme nonequilibrium biasing). Ratchanok (Ann) Somphonsane received the best-poster award for her studies of differential-conductance mapping in monolayer and bilayer graphene. Great job Ann!
• At EDISON'19 it was announced that the next version of the workshop (EDISON'20) will take place in Buffalo, NY in summer 2017, with Jonathan Bird appointed as the chair of the organizing committee. See you in Buffalo in 2017.
• Jonathan Bird was appointed to the international advisory committee of the EDISON conference!

April 2015

• NEW PAPER: S Xiang, K Fuji, S Sato, S Xiao, J P Bird, N Aoki, and Y Ochiai, “Metal–insulator transition in the quasi-one-dimensional transport of fractional quantum Hall states”, J. Phys.: Cond. Matt. 27, 202201 (2015).
• Jonathan Bird gave a contributed talk on NoMaD research on gating Fano resonances in quantum point contacts at 20 Years of Quantum Dots at Los Alamos in Santa Fe, New Mexico.

March 2015

• NEW PAPER: C.-P. Kwan, R. Chen, U. Singisetti, and J. P. Bird, “Electric-field dependent conduction mechanisms in crystalline chromia”, Appl. Phys. Lett. 106, 112901 (2015).
• NEW PAPER: R. Chen, W. Gao, X. Wang, G. R. Aizin, J. Mikalopas, T. Arikawa, K. Tanaka, D. B. Eason, G. Strasser, J. Kono, and J. P. Bird, “High-voltage breakdown and the Gunn effect in GaAs/AlGaAs nanoconstrictions”, IEEE Trans. Nanotechnol. DOI: 10.1109/TNANO.2015.2414902 (2015).

February 2015

• Jonathan Bird gave a seminar on NOMAD research at the Air Force Research Laboratory in Troy, NY. The meeting focused on shared interests in developing technology for terahertz communications.

January 2015

• Jonathan Bird visited the University of Texas at Dallas for the kick-off meeting of the benchmarking group of the Center for Nano-Ferroic Devices. This group will focus on developing compact models for non-volatile devices developed within CNFD, and on exploring novel circuit implementations related to these devices.

December 2014

• Dr. Ratchanok "Ann" Somphonsane returned to NOMAD to work for two months on collaborative research. Great to see you back Ann!
  
• Rui Chen successfuly defended his PhD thesis. Great job Rui! Rui will be staying on in Buffalo for a short time to develop
  S-parameter measurements of III-V nanoconstrictions. We are looking forward to working with you Rui!
• Zhiying Chen successfuly defended her PhD thesis. Super job Zhiying and good luck in your new job with IBM at Fishkill, NY
• Weilu Gao of Rice University gave a contributed talk on NoMaD research on the Gunn effect in III-V nanoconstrictions at TERANANO V (the Fifth International Symposium onTerahertz Nanoscience) at Hôtel La Batelière, Martinique.

November 2014

• Jonathan Bird visted Dresden, Germany for one week, as a guest scientist at the Max Planck Institute for the Physics of Complex Systems. While in Dresden he worked with his colleague Prof. Dr. Ingrid Rotter on an invited review article on the "Physics of Open Quantum Systems", which is scheduled to be published in Reports on Progress in Physics in 2015.

October 2014

• Jonathan Bird gave an invited talk in Washington DC on the benchmarking of novel device concepts being developed within the Center for NanoFerroic Devices (CNFD). The presentation was delivered at the annual benchmarking workshop of the STARNET and NRI centers.
• Jonathan Bird is the co-author of two new invention disclosures related to novel non-volatile device concepts being developed within CNFD.

June 2014

• Jonathan Bird was in Dresden, Germany for two weeks, as a guest scientist at the Max Planck Institute for the Physics of Complex Systems. While in Dresden he worked with his colleague Prof. Dr. Ingrid Rotter on an invited review article on the "Physics of Open Quantum Systems", which is scheduled to be published in Reports on Progress in Physics in 2015. While in Dresden he also gave a seminar within the institute on the topic of "New Fano-resonance phenomenology in nanoelectronic devices".

May 2014

• NEW PAPER: H. Ramamoorthy, R. Somphonsane, G. He, N. Aoki, Y. Ochiai, D. K. Ferry, and J. P. Bird, "Reversing hot-carrier energy relaxation in graphene with a magnetic field", Appl. Phys. Lett. 104, 193115 (2014).
• Shiran Xiao successfuly defended his PhD thesis. Super job Shiran!!
• Jonas Fransson of Uppsala University visited Buffalo for discussions on our joint research on transport in quantum point contacts and graphene. Thanks for coming!
• Jonathan Bird was in Japan for two weeks, lecturing to students at Chiba University and to participants in the NSF-supported international REU, NanoJapan

March 2014

• NEW PAPER: S. Xiang, S. Xiao, K. Fuji, K. Shibuya, T. Endo, N. Yumoto, T. Morimoto, N. Aoki, J. P. Bird, and Y. Ochiai, "On the zero-bias anomaly and Kondo physics in quantum point contacts near pinch-off", J. Phys.: Cond. Matt. 26, 125304 (2014).
• Shaohua Xiang and Mr. Matsunaga of Chiba University visited Buffalo for discussions on our joint research on transport in quantum point contacts and on nanomagnetic Y-branch junctions. Thanks for coming!

January 2014

• NEW PAPER: J. Fransson, M.-G. Kang, Y. Yoon, S. Xiao, Y. Ochiai, J. L. Reno, N. Aoki, and J. P. Bird, "Tuning the Fano resonance with an intruder continuum", Nano Lett. 14, 788 (2014).
• NEW PAPER: J. Lee, J. E. Han, S. Xiao, J. Song, J. L. Reno, and J. P. Bird, "Formation of a protected sub-band for conduction in quantum point contacts under extreme biasing", Nature Nanotechnology 9, 101 (2014). This work was also highlighted in a "News & Views" article: M. Cahay, "Immune to local heating", Nature Nanotechnology 9, 97 (2014).
• Rui Chen successfuly completed his PhD proposal defense. Great job Rui!

December 2013

• Jonathan Bird was appointed as Associate Editor at Frontiers in Physics: Condensed Matter Physics.
• Jonathan Bird gave an invited talk on NoMaD research on energy-relaxation of hot carriers in graphene at ISANN 2013 (the International Symposium on Advanced Nanodevices and Nanotechnology) at Poipu Beach, Kauai. Also at the same workshop, Shiran Xiao gave a contributed talk, while Rathchanok Somphonsane and Harihara Ramamoorthy gave poster presentations.

October 2013

• Zhiying Chen successfuly completed her PhD proposal defense. Congratulations on a job well done!
• Jonathan Bird gave a talk on NoMaD research on hot-carrier transport in graphene at Chiba University in Japan.

September 2013

• Ratchanok "Ann" Somphonsane successfuly defended her PhD thesis. Fantastic job Ann!
• Jonathan Bird gave a talk on NoMaD research on hot-carrier transport in graphene at the Department of Energy Experimental Condensed-Matter Physics workshop in Washington DC.

August 2013

• NEW PAPER: R. Somphonsane, H. Ramamoorthy, G. Bohra, G. He, D. K. Ferry, Y. Ochiai, N. Aoki, and J. P. Bird. "Fast energy relaxation of hot carriers near the Dirac point of graphene", Nano Lett. 13, 4305 (2013).

June 2013

• NEW FUNDING: Jonathan Bird received three years of renewal funding ($480K) from the Department of Energy to investigate nonlinear transport in mesoscopic systems. This amount includes funds to enable the purchase of a cryogen-free cryostat system.

May 2013

• Ann Somphonsane and Shiran Xiao successfuly completed their PhD proposal defense. Congratulations to you both!
• Jonathan Bird gave two invited talks on NoMaD research, at the International Workshop on Recent Progress in Nonequilibrium Quantum Many-Body Theory, Buffalo, NY and at the International Workshop on Transport in Open Quantum Systems: Experiment and Theory, Porquerolles, France.

April 2013

• NoMaD welcomed Profs. Jonas Fransson (Uppsala University, Sweden) and Yuichi Ochiai (Chiba University, Japan) on short term research visits. Thank you both for coming!
• Jonathan Bird gave a seminar on NoMaD research in the Physics Department of the University of Vermont.

February 2013

• NEW PAPER: T. Kim, R. V. Chamberlin, and J. P. Bird, "Large magnetoresistance of nickel silicide nanowires: Non-equilibrium heating of magnetically-coupled dangling bonds", Nano Lett. 13, 1106 (2013).
• NEW FUNDING: Jonathan Bird and Uttam Singisetti of the Department of Electrical Engineering received a 5-year award for $810K from the Nano Electronics Research Corporation (NERC) in collaboration with the National Institute of Standards and Technology (NIST). The work will be undertaken in collaboration with researchers from the University of Nebraska, Lincoln under the multi-university "Center for Nanoferroic Devices".

January 2013

• NEW PAPER: R. Chen et al., "Terahertz detection with nanoscale semiconductor rectifiers", IEEE Sensors Journal 13, 24 (2013).

December 2012

• Jonathan Bird visited Taiwan to talk on NoMaD research on mesoscopic phenomena in graphene, giving seminars in the Physics Departments at National Taiwan University and at National Chiao-Tung University.
• Jebum Lee successfully defended his PhD thesis on "Transient Transport in One-Dimensional Nanostructures". Congratulations Jebum!
• Ann Somphonsane gave a presentation on NoMaD research on energy relaxation in mesoscopic graphene, at the 3rd International Symposium on Terahertz Nanoscience (TeraNano III), Honolulu, Hawaii.

November 2012

• NEW PAPER: L. Mourokh et al., "Multi-continuum Fano resonance in coupled quantum point contacts: a manifestation of the “integral” Fano formula", Journal of Applied Physics 112, 103704 (2012).
• A SPECIAL ISSUE on the topic of "Quantum Physics with Non-Hermitian Operators: Theory and Experiment" was published in Fortschritte der Physik - Progress of Physics (February 2013, Vol. 61, issue 2-3). The special issue contains original contributions written by experts in different fields of physics. In addition to Jonathan Bird, the special issue was co-edited by Robin Kaiser (Nice, France), Ingrid Rotter (Dresden, Germany), and Gunter Wunner (Stuttgart, Germany).

October 2012

• NEW PAPER: G. Bohra et al., “Nonergodicity and microscopic symmetry breaking of the conductance fluctuations in disordered mesoscopic graphene”, Phys. Rev. B 86, 161405(R) (2012).
• Yuichi Ochiai and Shaohua Xiang visited Buffalo for discussions of our joint research on fractional edge state transport in quantum point contacts. Thanks for coming!

September 2012

• NEW PAPER: Z. Chen et al., "The magnetic Y-branch nanojunction: Domain-wall structure and magneto-resistance”, Appl. Phys. Lett. 101, 102403 (2012).
• NEW PAPER: G. Bohra et al., “Robust mesoscopic fluctuations in disordered graphene”, Appl. Phys. Lett. 101, 093110 (2012).
• Jonathan Bird gave three invited lectures on “General aspects of mesoscopic transport”, at the NORDITA Workshop on Spin-Related Phenomena in Mesoscopic Transport, Stockholm, Sweden.
• Jonathan Bird received the SUNY Chancellor's Award for Excellence in Scholarship & Creative Activities. The award was presented at the annual Celebration of Faculty Excellence, held at the Center for the Arts on the UB North Campus.

July 2012

• Yuichi Ochiai gave a contributed talk on NoMaD research on quantum interference in mesoscopic graphene, at the International Conference on Superlattices, Nanostructures, and Nanodevices, Dresden, Germany.

June 2012

• Jonathan Bird gave an invited talk on NoMaD research on multi-state Fano resonances at the Annual Workshop of the NordForsk Network, Kalmar, Sweden.

May 2012

• NEW PAPER: Y. Yoon et al., “Coupling quantum states through a continuum: a mesoscopic multistate Fano resonance”, Phys. Rev. X 2, 021003 (2012).
• Girish Bohra successfully defended his PhD thesis on "Mesoscopic Conductance Fluctuations in Disordered Graphene". Congratulations on a great job!

April 2012

• Yi-Ting "Alex" Wang from the group of Prof. Chi-Te Liang (Physics Department, National Taiwan University) joined the group for an eight month stay. He will focus on the fabrication of graphene magnetic-barrier devices. Welcome Alex!
• Shaohua Xiang from the group of Prof. Yuichi Ochiai (Department of Nanoscience, Chiba University) returned to Chiba after a one-month stay. Great job "Kou-kun"!