| UGA Abate

Research

Publications

Roadmap for Photonics with 2D Materials

F. Javier García de Abajo, D. N. Basov, Frank H. L. Koppens et al. Roadmap for Photonics with 2D Materials. https://doi.org/10.48550/arXiv.2504.04558

Visible-to-THz near-field nanoscopy

R. Hillenbrand, Y. Abate, M. Liu, X. Chen, D. N. Basov, Nature Reviews Materials (2025). https://doi.org/10.1038/s41578-024-00761-3

A modular platform to generate functional sympathetic neuron-innervated heart assembloids

H. F. Wu, K. Saito-Diaz, X. Sun, M. Song, T. Saini, C. Grant, C. James, K. Thomas, Y. Abate, E. W. Howerth, P. A. Kner, B. Xu, N. Zeltner, Nature Biotechnology (submitted) reference number: NBT-RA62235-T

EG-Spike Former: Eye-Gaze Guided Transformer on Spiking Neural Networks for Medical Image Analysis

Y. Pan, H. Jiang, J. Chen, Y. Li, H. Zhao, Y. Zhou, P. Shu, Z. Wu, Z. Liu, D. Zhu, X. Li, Y. Abate, T. Liu accepted by 2025 IEEE International Symposium on Biomedical Imaging (ISBI 2025). https://arxiv.org/abs/2410.09674

Substrate Induced van der Waals Force Effects on the Stability of Violet Phosphorus

S. Singh, M. Ghafariasl, H. Y. Ko, S. Gamage, R. A. DiStasio Jr., M. Snure, Y. Abate, Advanced Materials Interfaces, 11(29), 2024. https://doi.org/10.1002/admi.202400326

Nanoscale Characterization of Space Weathered Lunar Samples

A. M. Grice, P. C. Stancil, M. Ghafariasl, S. Singh, S. Gamage, M. J. Schiable, Y. Abate, and T. M. Orlando Scientific Reports, 15, 301 (2025). https://doi.org/10.1038/s41598-024-83392-6

A wealth of structures for the Ge2H2 + radical cation: comparison of theory and experiment

EJ Poncelet, HF Mull, Y Abate, GH Robinson, GE Douberly, JM Turney, HF Schaefe Phys. Chem. Chem. Phys., 2024, Advance Article DOI : 10.1039/D3CP06098E

Sulfur Vacancy Related Optical Transitions in Graded Alloys of MoxW1-xS2 Monolayers

Mahdi Ghafariasl, Tianyi Zhang, Zachary D. Ward, Da Zhou, David Sanchez, Venkataraman Swaminathan, Humberto Terrones, Mauricio Terrones, Yohannes Abate Advanced Optical Materials, Fab 2024, 2302326 DOI : 10.1002/adom.202302326

Photodegradation and Thermal Effects in Violet Phosphorus

Mahdi Ghafariasl, Sarabpreet Singh, Sampath Gamage, Timothy Prusnick, Micheal Snure, Yohannes Abate Advanced Materials Interfaces, Jan 2024, 2300794 DOI : 10.1002/admi.202300794

Infrared Nanoimaging of Hydrogenated Perovskite Nickelate Synaptic Devices

Sampath Gamage, Sukriti Manna, Marc Zajac, Steven Hancock, Qi Wang, Sarabpreet Singh, Mahdi Ghafariasl, Kun Yao, Tom Tiwald, Tae Joon Park, David P. Landau, Haidan Wen, Subramanian Sankaranarayanan, Pierre Darancet, Shriram Ramanathan, and Yohannes Abate ACS Nano, Jan 2024, 18, 3, 2105–2116 DOI : 10.1021/acsnano.3c09281

Nanoscale-reconfigurable metasurfaces on-demand with correlated oxides

Neda Alsadat Aghamiri, Yohannes Abate, Shriram Ramanathan US Patent, Jul 2023 Pub number :US20230204986A1

All-Electric Nonassociative Learning in Nickel Oxide

Sandip Mondal, Zhen Zhang, A. N. M. Nafiul Islam, Robert Andrawis,Sampath Gamage, Neda Alsadat Aghamiri, Qi Wang, Hua Zhou, Fanny Rodolakis,Richard Tran, Jasleen Kaur, Chi Chen, Shyue Ping Ong, Abhronil Sengupta,Yohannes Abate, Kaushik Roy, and Shriram Ramanathan Advanced Intelligent Systems, Sep 2022 DOI : 10.1002/aisy.202200069

Spin-orbit-locked hyperbolic polariton vortices carrying reconfigurable topological charges

M. Wang, G. Hu, S. Chand, M. Cotrufo, Y. Abate, K. Watanabe, T. Taniguchi, G. Grosso, CW. Qiu, A. Alù Nature eLight May, 2022 ELIT-D-22-00008R1 DOI : 0.1186/s43593-022-00018-y

Langevin dynamics/Monte Carlo simulations method for calculating nanoscale dielectric functions of materials

Steven B. Hancock, Neda Alsadat Aghamiri, David P. Landau, Yohannes Abate PHYSICAL REVIEW MATERIALS 6, 076001 (2022). DOI:10.1103/PhysRevMaterials.6.076001

Reconfigurable Hyperbolic Polaritonics with Correlated Oxide Metasurfaces

Neda Alsadat Aghamiri, Guangwei Hu, Alireza Fali, Zhen Zhang, Jiahan Li, Sivacarendran Balendhran , Sumeet Walia, Sharath Sriram, James Edgar, Shriram Ramanathan, Andrea Alu, Yohannes Abate Nature Communications 13, Article number: 4511 (2022) , DOI: 10.1038/s41467-022-32287-z

Reconfigurable perovskite nickelate electronics for artificial intelligence

Hai-Tian Zhang, Tae Joon Park, A. N. M. Nafiul Islam, Dat S. J. Tran, Sukriti Manna, Qi Wang, Sandip Mondal, Haoming Yu, Suvo Banik, Shaobo Cheng, Hua Zhou, Sampath Gamage, Sayantan Mahapatra, Yimei Zhu, Yohannes Abate, Nan Jiang, Subramanian K. R. S. Sankaranarayanan, Abhronil Sengupta, Christof Teuscher, Shriram Ramanathan SCIENCE, 3 Feb 2022, 375, 6580, pp. 533-539, DOI:10.1126/science.abj7943,

Neuromorphic learning with Mott insulator NiO

Zhen Zhang, Sandip Mondal, Subhasish Mandal, Jason M. Allred, Neda Alsadat Aghamiri, Alireza Fali, Zhan Zhang, Hua Zhou, Hui Cao, Fanny Rodolakis, Jessica L. McChesney, Qi Wang, Yifei Sun, Yohannes Abate, Kaushik Roy, Karin M. Rabe, and Shriram Ramanathan PNAS September 28, 2021 118 (39) e2017239118, DOI:10.1073/pnas.2017239118

Violet phosphorus surface chemical degradation in comparison to black phosphorus

A. Fali, M. Snure, and Y. Abate Appl. Phys. Lett. 118, 163105, Editor’s Pick (2021) DOI: 10.1063/5.0045090

Photodegradation Protection in 2D In-Plane Heterostructures Revealed by Hyperspectral Nanoimaging: The Role of Nanointerface 2D Alloys

A. Fali, T. Zhang, J. P. Terry, E. Kahn, K. Fujisawa, B. Kabius, S. Koirala, Y. Ghafouri, D. Zhou, W. Song, L. Yang, M. Terrones, and Y. Abate ACS Nano 2021, 15, 2, 2447–2457 DOI: 10.1021/acsnano.0c06148

Nanoscale Spectroscopy of Dielectric Properties of Mica

A. Fali, S. Gamage, M. Howard, T. G. Folland, N. A. Mahadik, T. Tiwald, K. Bolotin, J. D. Caldwell, and Y. Abate ACS Photonics 2021, 8, 1, 175–181 DOI: 10.1021/acsphotonics.0c00951

Self-Assembled Periodic Nanostructures Using Martensitic Phase Transformations

A. Prakash, T. Wang, A. Bucsek, T. K. Truttmann, A. Fali, M. Cotrufo, H. Yun, J. Kim, P. J. Ryan, K. A. Mkhoyan, A. Alu, Y. Abate, R. D. James, and B. Jalan Nano Lett. 2021, 21, 3, 1246–1252, featured on the journal cover DOI: 10.1021/acs.nanolett.0c03708

Carrier Localization in Perovskite Nickelates From Oxygen Vacancies

M. Kotiuga, Z. Zhang, J. Li, F. Rodolakis, H. Zhou, R. Sutarto, F. He, Q. Wang, Y. Sun, Y. Wang, N. A. Aghamiri, S. B. Hancock, L. P. Rokhinson, D. P. Landau, Y. Abate, J. W. Freeland, R. Comin, S. Ramanathan, and K. M. Rabe Proceedings of the National Academy of Sciences of the USA (PNAS) Oct 2019, 201910490 DOI: 10.1073/pnas.1910490116

Refractive Index-Based Control of Hyperbolic Phonon-Polariton Propagation

A. Fali, S. T. White, T. G. Folland, M. He, N. A. Aghamiri, S. Liu, J. H. Edgar, J. D. Caldwell ,R. F. Haglund, Y. Abate Nano Letters 2019 19 (11), 7725-7734 DOI: 10.1021/acs.nanolett.9b02651Proceedings of the National Academy of Sciences of the USA (PNAS) Oct 2019, 201910490 DOI: 10.1073/pnas.1910490116

Hyperspectral Time-Domain Terahertz Nanoimaging

N. A. Aghamiri, F. Huth, A. J.Huber, A. Fali, R. Hillenbrand, Y. Abate Optics Express 27, 24231-24242 (2019) DOI: 10.1364/OE.27.024231

Reconfigurable Infrared Hyperbolic Metasurfaces Using Phase Change Materials

T. G. Folland, A. Fali, S. T. White, J. R. Matson, S. Liu, N. A. Aghamiri, J. H. Edgar, R. F. Haglund Jr., Y. Abate & J. D. Caldwell Nature Communications volume 9, Article number: 4371 (2018) DOI: 10.1038/s41467-018-06858-y

Strongly Correlated Perovskite Lithium Ion Shuttles

Y. Sun, M. Kotiuga, D. Lim, B. Narayanan, M. Cherukara, Z. Zhang, Y. Dong, R. Kou, C. Sun, Q. Lu, I. Waluyo, A. Hunt, H. Tanaka, A. N. Hattori, S. Gamage, Y. Abate, V. G. Pol, H. Zhou, S. K. R. S. Sankaranarayanan, B. Yildiz, K. M. Rabe, S. Ramanathan Proceedings of the National Academy of Sciences of the USA (PNAS) Aug 2018, 201805029 DOI: 10.1073/pnas.1805029115

Probing Structural Changes In Single Enveloped Virus Particles Using Nano-Infrared Spectroscopic Imaging

S. Gamage, M. Howard, H. Makita, B. Cross, G. Hastings, M. Lou, Y. Abate PLOS ONE 13(6): e0199112 DOI: 10.1371/journal.pone.0199112

Near-field Surface Waves in Few-Layer MoS2

V. Babicheva, S. Gamage, Z. Li, S.Cronin, V. Yakovlev, Y. Abate ACS Photonics Article ASAP DOI: 10.1021/acsphotonics.7b01563

Recent Progress on Stability and Passivation of Black Phosphorus

Yohannes Abate, Deji Akinwande, Sampath Gamage, Han Wang, Michael Snure, Nirakar Poudel, and Stephen B. Cronin Advanced Materials, 2018, 1704749 DOI: 10.1002/adma.201704749

Near-field edge fringes at sharp material boundaries

V. E. Babicheva, S. Gamage, M. I. Stockman, and Y. Abate Optics Express 25, 23935, (2017) DOI: 10.1364/OE.25.023935

Reliable Passivation of Black Phosphorus by Thin Hybrid Coating

S. Gamage, A. Fali, N. Aghamiri, L. Yang, P.D. Ye and Y. Abate IOP Nanotechnology 28, 265201, 2017 DOI: 10.1088/1361-6528/aa7532

Towards Understanding and Control of Nanoscale Phase Segregation in InGaN Alloys

Y. Abate, V.E. Babicheva, V.S. Yakovlev and N. Dietz III-Nitride Materials, Devices and Nano-Structures: pp. 183-207 DOI: 10.1142/9781786343192_0006

Geometric constraints on phase coexistence in vanadium dioxide single crystals

C. McGahan, S. Gamage, J. Liang, B. Cross, R. E Marvel, Richard F Haglund and Y. Abate IOP Nanotechnology 28, 085701, (9pp), (2017) DOI: 10.1088/1361-6528/aa5652

Effect of AlN buffer layers on the structural and optoelectronic properties of InN/AlN/Sapphire heterostructures grown by MEPA-MOCVD

M. K. I. Senevirathna, D. Seidlitz, A. Fali, B. Cross, Y. Abate and N. Dietz Proc. SPIE 9954, Fifteenth International Conference on Solid State Lighting and LED-based Illumination Systems, 99540R (September 7, 2016) DOI: 10.1117/12.2237957

Nanoscopy of Phase Separation in InxGa1-xN Alloys

Y. Abate, D. Seidlitz, A. Fali, S. Gamage, V. Babicheva, V. S. Yakovlev, M. I. Stockman, R. Collazo, D. Alden and N. Dietz ACS Appl. Mater. Interfaces, 2016, 8 (35), pp 23160-23166 DOI: 10.1021/acsami.6b06766

Nanoscopy of Black Phosphorus Degradation

S. Gamage, Z. Li, V. S. Yakovlev, C. Lewis, H. Wang, S. B. Cronin and Y. Abate Advanced Materials Int., Volume: 3 Issue: 12, Article Number: 1600121 DOI: 10.1002/admi.201600121 (Cover Paper)

Nanoscopy Reveals Metallic Black Phosphorus

Y. Abate, S. Gamage, Z. Li, V. Babicheva, M. H. Javani, H. Wang, S.B. Cronin and M.I. Stockman Light: Science & Applications (2016), 5, e16162 DOI: 10.1038/lsa.2016.162

Optoelectronic and structural properties of InGaN grown by Migration-Enhanced, Plasma-Assisted MOCVD

D. Seidlitz, M. K. I. Senevirathna, Y. Abate, A. Hoffmann and N. Dietz Proc. SPIE 9571, Fourteenth International Conference on Solid State Lighting and LED-based Illumination Systems, 95710P (September 8, 2015) DOI: 10.1117/12.2188612

Control of plasmonic nanoantennas by reversible metal-insulator transition

Y. Abate, R. E. Marvel, J. I. Ziegler, S. Gamage, M. H. Javani, M. I. Stockman and R. F. Haglund Sci. Rep., 5, 13997. (2015) DOI: 10.1038/srep13997

Near-Field Spectroscopy and Imaging of Single Nanoparticles

Yohannes Abate The Dekker Encylopedia of Nanoscience and Nanotechnology, (Invited Book Chapter) DOI: 10.1081/E-ENN3-120050582

Temperature Gated Thermal Rectifier for Active Heat Flow Control

J. Zhu, K. Hippalgaonkar, S. Shen, Y. Abate, K. Wang, S. Lee, J. Wu, X. Yin, A. Majumdar and X. Zhang Nano Lett., 2014, 14 (8), pp 4867-4872 DOI: 10.1021/nl502261m

Heat-Induced Coarsening of Layer-by-Layer Assembled Mixed Au and Pd Nanoparticles

Y. Shon, D. J. Shon, V. Troung, D. J. Gavia, R.Torrico and Y. Abate Adv Nano Res., 2014 Feb 1; 2(1): 57-67 DOI: 10.12989/anr.2014.2.1.057

Near-field spatial mapping of strongly interacting multiple plasmonic infared antennas

S. E. Grefe, Daan Leiva, S. Mastel, S. D. Dhuey, S. Cabrini, P. J. Schuck and Y. Abate Phys. Chem. Chem. Phys., 2013,15, 18944-18950 DOI: 10.1039/C3CP53104J

Near-field Nanoscale Investigation of Optical Properties of Bi2Se3 Thin-films

S. E. Grefe, M. Tan, S. Derakhshan and Y. Abate MRS Online Proceedings Library, 1557, mrss13-1557-y03-08 DOI: 10.1557/opl.2013.1043

Real-Space Mapping of Nanoplasmonic Hotspots via Antenna Gap-Loading

S. Mastel, S. E. Grefe, B. Cross, A. Taber, S. Dhuey, S. Cabrini, J. Schuck and Y. Abate Appl. Phys. Lett., 101, 131102 (2012) DOI: 10.1063/1.4754534

Characterization of localized surface plasmon resonance transducers produced from Au25 nanoparticle multilayers

P. Vaccarello, L. Tran, J. Meinen, C. Kwon, Y. Abate and Y. Seok Shon Colloids and Surfaces A: Physicochem. Eng. Aspects 402 (2012), 146-151 DOI: 10.1016/j.colsurfa.2012.03.041

Nanoscale near-field infrared spectroscopic imaging of silica-shell/gold-core and pure silica nanoparticles

Z. NuÒo, B. Hessler, B. Heiberg, R. Damato, T. Dunlap, Y. Shon and Y. Abate J. Nanopart Res., 14:766 (2012) DOI: 10.1007/s11051-012-0766-z

Near-field infrared nanoscopy of phonon resonant silica and silica-coated Au nanoparticles

Z. NuÒo, B. Hessler, J. Ochoa, Y. Shon, C. Bonney and Y. Abate NSTI-NanoTech 2011, ISBN 978-1-4398-7142-3, Vol. 1, 2011

Nanoscale subsurface- and material-specific identification of single nanoparticles

Z. NuÒo, B. Hessler, J. Ochoa, Y. Shon, C. Bonney and Y. Abate Optics Express 19, 20865 (2011) DOI: 10.1364/OE.19.020865

Nanoscale Infrared Absorption Spectroscopy of Individual Nanoparticles Enabled by Scattering-Type Near-Field Microscopy

J. M. Stieglerß, Y. Abateß, A. Cvitkovic, Y. Romanyuk, A. J. Huber, S. Leone and R. Hillenbrand (ß Equal contribution) ACS Nano 5, 6494 (2011) DOI: 10.1021/nn2017638

Nanometer-scale dielectric constant of Ge quantum dots using apertureless near-field scanning optical microscopy

Y. Ogawa, F. Minami, Y. Abate and S. Leone App. Phys. Lett., 96, 063107 (2010) DOI: 10.1063/1.3309692

Nanometer-scale size dependent imaging of cetyl trimethyl ammonium bromide (CTAB) capped and uncapped gold nanoparticles by apertureless near-field optical microscopy

Y. Abate, A. Schwartzberg, D. Strasser and S. Leone Chem. Phys. Lett., 474,146 (2009) DOI: 10.1016/j.cplett.2009.04.026

Photodissociation Spectroscopy and Dynamics of Mg+ -Acetic Acid Complex

Y. Abate and P. Kleiber J. Chem. Phys., 125, 184310 (2006) DOI: 10.1063/1.2386156

Photodissociation Spectroscopy of Zn+(H2O) and Zn+(D2O)

Y. Abate and P. Kleiber J. Chem. Phys., 122, 084305 (2005) DOI: 10.1063/1.1847610

Photodissociation Spectroscopy of Zn+-Formaldehyde

W. Lu, Y. Abate, T.H. Wong and P. Kleiber J. Phys. Chem., A.108, 10661 (2004) DOI: 10.1021/jp040514a

Optimization and enhancement of H- ions in a magnetized sheet plasma

Y. Abate and H. Ramos Rev. Sci. Instrum., 71, 3689 (2000) DOI: 10.1063/1.1289510

OTHER PUBLICATIONS

Nanometer-scale Mapping of Dielectric Constant of Ge/Si Quantum Dots by Using Apertureless Near-field Scanning Optical Microscopy

Ogawa, Y.; Nakajima, D.; Minami, F.; Abate, Yohannes; Leone, Stephen R. AIP Conference Proceedings Vol. 1399 Issue 1, p557. (PHYSICS OF SEMICONDUCTORS: 30th International Conference on the Physics of Semiconductors)

Density measurements of negative hydrogen ions using mass spectrometer

Y. Abate, M. Arciaga and H. Ramos Science Diliman 13 (2) (2001) 33.

Optimization and enhancement of H- ion production in magnetized sheet plasma source

Y. Abate and H. Ramos Abstracts of the Regional Meeting on Plasma Research in the 21st Century, Bangkok, May 7-12, 2000, p.12.

Density measurements of negative hydrogen ion using a mass spectrometer

Y. Abate, M. Arciaga and H.J. Ramos Proc. 18th SPP Congress, Puerto Princesa, Palawan, Oct. 27-29, 2000.

Enhanced negative hydrogen ion production in volume ion source

Y. Abate, P. Concepcion, R. Awayan, M. Arciaga, M. Macandog, L. Mejia, V. Noguera, M.G. Cardinal and H. Ramos Proc. 17th SPP Congress, Tacloban City, Leyte, Oct. 22-24, 1999, p.149.

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