Journal Articles

R. Khan, A. H. Talukder, F. Dirisaglik, H. Silva, A. Gokirmak, Accelerating and Stopping Resistance Drift in Phase Change Memory Cells via High Electric Field Stress, arXiv preprint arXiv:2002.12487

J. Scoggin, H. Silva, A. Gokirmak, Field Dependent Conductivity and Threshold Switching in Amorphous Chalcogenides–Modeling and Simulations of Ovonic Threshold Switches and Phase Change Memory Devices, arXiv preprint arXiv:1906.09316, under revision

N. Noor, S. Muneer, R. Khan, A. Gorbenko, H. Silva, Amorphized Length and Variability in Phase Change Memory Line Cells, www.beilstein-archives.org/xiv/preprints/202058, under review. 

R. Khan, F. Dirisaglik, A. Gokirmak, H. Silva, Resistance drift in Ge2Sb2Te5 phase change memory line cells at low temperatures and its response to photoexcitation, Applied Physics Letters. 116 (25), 253501 (2020).

A. Cywar, Z. Woods, S. Kim, M. BrightSky, N. Sosa, Y. Zhu, H. S. Kim, H. K. Kim, C. Lam, A. Gokirmak, H. Silva, Modeling of void formation in phase change memory devices, Solid-State Electronics, 164, 107684 (2020).

S. Tripathi, P. Kotula, M. Singh, C. Ghosh, G. Bakan, H. Silva, C. B. Carter, C Barry, Role of oxygen on chemical segregation in uncapped Ge2Sb2Te5 thin films on silicon nitride, ECS Journal of Solid State Science and Technology, in press https://doi.org/10.1149/2162- 8777/ab9a19 (2020).

J. Scoggin, Z. Woods, H. Silva, A. Gokirmak, Modeling heterogeneous melting in phase change memory devices, Applied Physics Letters 114, 043502 (2019).

S. Muneer, J. Scoggin, F. Dirisaglik, L. Adnane, A. Cywar, G. Bakan, K. Cil, C. Lam, H. Silva, and A. Gokirmak. “Activation energy of metastable amorphous Ge2Sb2Te5 from room temperature to melt” AIP Advances 8, no. 6, 065314 (2018).

J. Scoggin, R. Khan, H. Silva, and A. Gokirmak. “Modeling and impacts of the latent heat of phase change and specific heat for phase change materials.” Applied Physics Letters 112, no. 19, 193502 (2018).

M. Akbulut , F. Dirisaglik, A. Cywar, A. Faraclas, D. Pence, J. Patel, S. Steen, R. Nunes, H. Silva, and A. Gokirmak, “Nanoscale Accumulated Body Si nMOSFETs,” IEEE Trans. Electron Devices 65, no. 4, 1283-1289 (2018).

L. Adnane, F. Dirisaglik, A. Cywar, K. Cil, Y. Zhu, C. Lam, A. F. M. Anwar, A. Gokirmak, and H. Silva, “High temperature electrical resistivity and Seebeck coefficient of Ge2Sb2Te5 thin films,” J. Appl. Phys. 122, 125104 (2017).

Z. Woods, J. Scoggin, A. Cywar, L. Adnane, and A. Gokirmak, “Modeling of Phase-Change Memory: Nucleation, Growth, and Amorphization Dynamics During Set and Reset: Part II–Discrete Grains,” IEEE Trans. Electron Devices 64, no. 11, 4472-4478 (2017).

Z. Woods and A. Gokirmak, “Modeling of Phase-Change Memory: Nucleation, Growth, and Amorphization Dynamics During Set and Reset: Part I–Effective Media Approximation,” IEEE Trans. Electron Devices 64, no. 11, 4466-4471  (2017).

A. Deschenes, S. Muneer, M. Akbulut, A. Gokirmak and H. Silva,  “Analysis of self-heating of thermally assisted spin-transfer torque magnetic random access memory,” Beilstein Journal of Nanotechnoly 7, 1676–1683 (2016).

G. Bakan, B. Gerislioglu,F. Dirisaglik, Z. Jurado,  L. Sullivian, A. Dana, C. Lam, A. Gokirmak, H. Silva, “Extracting the temperature distribution on a phase-change memory cell during crystallization,” J. Appl. Phys. 120, 164504 (2016).

L. Adnane, A. Gokirmak and H. Silva, “High temperature Hall measurement setup for thin film characterization,” Rev. Sci. Instrum. 87, 075117 (2016).

N. Kan’an, H. Silva and A. Gokirmak, “Phase-change pipe for non-volatile routing,” Journal of the Electron Devices Society 4, no. 2, 72-75 (2016).

F. Dirisaglik, G. Bakan, Z. Jurado, S. Muneer, M. Akbulut, J. Rarey, L. Sullivan, M. Wennberg, A. King, L. Zhang, R. Nowak, C. Lam, H. Silva and A. Gokirmak, “High speed, high temperature electrical characterization of phase change materials: metastable phases, crystallization dynamics, and resistance drift,” Nanoscale 7, 16625-16630 (2015).

N. Noor, L. Lucera, T. Capuano, V. Manthina, A. G. Agrios, H. Silva and A. Gokirmak, “Blue and white light emission from zinc oxide nanoforests,” Beilstein J. Nanotechnol 6, 2463–2469 (2015).

L. Adnane, N. Williams, H. Silva and A. Gokirmak, “High temperature setup for measurements of Seebeck coefficient and electrical resistivity of thin films using inductive heating,” Review of Scientific Instruments 86, 105119 (2015).

N. Noor, V. Manthina, K. Cil, L. Adnane, A. G. Agrios, A. Gokirmak, H. Silva, “Atmospheric pressure microplasmas in ZnO nanoforests under high voltage stress,” AIP Advances 5, 097212 (2015).

N. Williams, H. Silva, A. Gokirmak, “Finite Element Analysis of Scaling of Silicon Micro-thermoelectric generators to nanowire dimensions,” J. Renewable Sustainable Energy 4, 043110 (2012) http://dx.doi.org/10.1063/1.4738592

N. Williams, H. Silva, A. Gokirmak, “Nanoscale RingFETs,” IEEE Electron Device Letters 33, 10, 1339 – 1341 (2012) 10.1109/LED.2012.2208093

A. Cywar, H. Silva, A. Gokirmak, “Finite Element Modeling of a Nanowire-Based Oscillator Achieved Through Solid-Liquid Phase Switching for GHz Operation”, Solid State Electronics 78, 97-101 (2012) http://dx.doi.org/10.1016/j.sse.2012.05.067

A. Cywar, J. Li, C. Lam, H. Silva, “The impact of heater-recess and load matching in phase change memory mushroom cells,” Nanotechnology 23, 22, 225201(2012).

H. Silva, G. Bakan, A. Cywar, N. Williams, N. Henry, F. Dirisaglik, A. Gokirmak, “Crystallization of silicon microstructures through rapid self-heating for high-performance electronics on arbitrary substrates,” Nanoscience and Nanotechnology Letters 4, 10, 970-976 (2012) http://dx.doi.org/10.1166/nnl.2012.1438

M. Staruch, K. Cil, H. Silva, J. Xiong, Q.X. Jia, and M. Jain, “Effect of Mn Doping on the Properties of Sol-gel Derived Pb0.3Sr0.7TiO3 Thin Films,” Integrated Ferroelectrics (special issue, in press, 2012).

H.K. Peng, K. Cil, A. Gokirmak, G. Bakan, Y. Zhu, C.S. Lai, C.H. Lam, H. Silva, “Thickness dependence of the amorphous-cubic and cubic-hexagonal phase transition temperatures of GeSbTe thin films on silicon nitride,” Thin Solid Films, vol. 520, pp. 2976-2978, 2011.

A. Faraclas, N. Williams, A. Gokirmak, H. Silva, “Modeling of Set and Reset Operations of Phase-Change Memory Cells,” Electron Device Letters, IEEE, 32, 12, 1737 – 1739 (2011).

A. Cywar, F. Dirisaglik, M. Akbulut, G. Bakan, S. Steen, H. Silva, A. Gokirmak, “Scaling of Silicon Phase-Change Oscillators,” Electron Device Letters, IEEE, vol. 32, pp. 1486-1488, 2011.

G. Bakan, N. Khan, A. Cywar, K. Cil, M. Akbulut, A. Gokirmak, H. Silva, “Self-heating of silicon microwires: Crystallization and thermoelectric effects,” Journal of Material Research, vol. 26, Issue 9, pp. 1061-1071, 2011. Invited Feature Paper. Pdf copy (Copyright 2011 Cambridge University Press and Materials Research Society )

A. Cywar, G. Bakan, H. Silva and A. Gokirmak, “Nanosecond Pulse Generation in a Silicon Microwire,” Electron Device Letters, IEEE, vol. 31, pp. 1362-1364, 2010.

W. Jia, Y. Wang, J. Basu, T. Strout, C. B. Carter, A. Gokirmak and Y. Lei, “Nanoengineered Transparent, Free-Standing, Conductive Nanofibrous Membranes,” J. Phys. Chem. C, vol. 113, pp. 19525-19530, 2009.

A. Gokirmak, H. Inaltekin and S. Tiwari, “Attofarad resolution capacitance–voltage measurement of nanometer scale field effect transistors utilizing ambient noise,” Nanotechnology, vol. 20, pp. 335203, 2009.

G. Bakan, A. Cywar, H. Silva and A. Gokirmak, “Melting and crystallization of nanocrystalline silicon microwires through rapid self-heating,” Appl. Phys. Lett., vol. 94, pp. 251910, 2009. Pdf copy (Copyright 2009 American Institute of Physics)

A. Cywar, G. Bakan, C. Boztug, H. Silva and A. Gokirmak, “Phase-change oscillations in silicon microwires,” Appl. Phys. Lett., vol. 94, pp. 072111, 2009. Pdf copy (Copyright 2009 American Institute of Physics)

K. M. Fan, C. S. Lai, H. Silva, C. F. Ai and C. R. Chen, “Programming Speed Enhancement by NH Plasma Nitridation of Tunneling Oxide for Ge Nanocrystals Memory,” J. Electrochem. Soc., vol. 155, pp. H889 – H894, (2008).

K. J. Lee, R. LaComb, B. Britton, M. Shokooh-Saremi, H. Silva, E. Donkor, Y. Ding and R. Magnusson, “Silicon-Layer Guided-Mode Resonance Polarizer With 40-nm Bandwidth,” IEEE Photonics Technology Letters, vol. 20, 1857-1859 (2008).

A. Gokirmak and S. Tiwari, “Accumulated body ultranarrow channel silicon transistor with extreme threshold voltage tunability,” Appl. Phys. Lett., vol. 91, pp. 243504, 2007. Pdf copy (Copyright 2007 American Institute of Physics)

H. Silva and S. Tiwari, “Random telegraph signal in nanoscale back-side charge trapping memories,” Appl. Phys. Lett., vol. 88, pp. 102105, 2006. Pdf copy (Copyright 2006 American Institute of Physics)

A. Gokirmak and S. Tiwari, “Threshold voltage tuning and suppression of edge effects in narrow channel MOSFETs using surrounding buried side-gate,” Electron. Lett., vol. 41, pp. 157-158, 2005.

H. Silva and S. Tiwari, “A nanoscale memory and transistor using backside trapping,” Nanotechnology, IEEE Transactions on, vol. 3, pp. 264-269, 2004.

H. Silva, M. K. Kim, U. Avci, A. Kumar and S. Tiwari, “Nonvolatile Silicon Memory at the Nanoscale,” MRS Bull, pp. 845, 2004.

Book Chapter

H. Silva, A. Faraclas, A. Gokirmak, Phase-change memories and electrothermal modeling, in Nanoscale Semiconductor Memories: Technology and Applications, CRC Press, edited by Santosh K. Kurinec and Krzysztof Iniewski, 2013.

Conference Proceedings

M. B. Akbulut, F. Dirisaglik, A. Cywar, A. Faraclas, D. Pence, J. Patel, S. Steen, R. Nunes, H. Silva and A. Gokirmak, “Narrow-channel Accumulated-Body Bulk Si MOSFETs with Wide-Range Dynamic Threshold Voltage Tuning,” in Device Research Conference (DRC), pp. suppl. 1-2, 2013.

M. B. Akbulut, H. Silva, and A. Gokirmak, “Pentagate Approach to Reduce the Line Edge Roughness Effects in Bulk Si Tri-gate Transistors,” MRS Online Proceedings Library, vol. 1510, 2013. 10.1557/opl.2013.529 (pdf copy)

A. Faraclas, N. Williams, F. Dirisaglik, K. Cil, A. Gokirmak, H. Silva, “Operation dynamics in phase-change memory cells and the role of access devices,” 2012 IEEE Computer Society Annual Symposium on VLSI, Amherst MA, August 20, 2012, 10.1109/ISVLSI.2012.48.

A. Faraclas, N. Williams, A. Gokirmak, H. Silva, “Comparison of Instantaneous Crystallization and Metastable Models in Phase Change Memory Cells,” 2012 IEEE Device Research Conference (2012), 10.1109/DRC.2012.6257017.

A. Faraclas, N. Williams, A. Gokirmak, H. Silva, “Simulation comparison of reset operation for mushroom phase change memory cells with different access device,” IEEE 2011 Intl. Semiconductor Device Research Symposium (ISDRS) (2011).

S. Fischer, C. Osorio, N. Williams, H. Silva, A. Gokirmak, “Finite element modeling of current-induced filaments in nanocrystalline silicon”, IEEE 2011 Intl. Semiconductor Device Research Symposium (ISDRS) (2011).

N. Williams, A. Gokirmak, “Hydrodynamic Simulations of a nanoscale ringFET”, IEEE 2011 Intl. Semiconductor Device Research Symposium (ISDRS) (2011).

A. Cywar, G. Bakan, A. Gokirmak, H. Silva, “Silicon nanowire-based oscillator achieved through solid-liquid phase switching,” IEEE 2011 Intl. Semiconductor Device Research Symposium (ISDRS) (2011).

F. Dirisaglik, G. Bakan, A. Gokirmak, H. Silva, “Modeling of thermoelectric effects in phase change memory cells,” IEEE 2011 Intl. Semiconductor Device Research Symposium (ISDRS) (2011).

N. Williams, A. Gokirmak, H. Silva, “Finite Element Simulations on Scaling Effects of 3D SiGe Thermoelectric Generators,” Mater. Res. Soc. Symp. Proc. Vol. 1388 (2012). Pdf copy (Copyright 2012 Cambridge University Press and Materials Research Society)

G. Bakan, N. Khan, H. Silva, A. Gokirmak, “Thermoelectric Effects in Current Induced Crystallization of Silicon Microwires,” MEMS and Nanotechnology Vol 4: Conference Proceedings of the Society for Experimenal Mechanics Series, pp. 9-16, 2011. Pdf copy (Copyright 2011 The Society for Experimental Mechanics)

G. Bakan, K. Cil, A. Cywar, H. Silva and A. Gokirmak, “Measurements of Liquid Silicon Resistivity on Silicon Microwires,” Mater. Res. Soc. Symp. Proc., vol. 1178, pp. AA6.6, 2009. Pdf copy (Copyright 2009 Cambridge University Press and Materials Research Society)

G. Bakan, A. Cywar, K. Cil, F. Dirisaglik, H. Silva and A. Gokirmak. “Phase-change oscillations in silicon wires,” IEEE – Device Research Conference Digest, pp. 79, 2009.

G. Bakan, A. Cywar, C. Boztug, M. Akbulut, H. Silva and A. Gokirmak, “Annealing of nanocrystalline silicon micro-bridges with electrical stress,” Mater. Res. Soc. Symp. Proc., vol. 1144, pp. LL03-25, 2009. Pdf copy (Copyright 2008 Cambridge University Press and Materials Research Society)

C. Boztug, G. Bakan, M. Akbulut, N. Henry, A. Gokirmak and H. Silva, “Numerical modeling of electrothermal effects in silicon nanowires,” Mater. Res. Soc. Symp. Proc., vol. 1083, pp. R04-11, 2008. Pdf copy (Copyright 2008 Cambridge University Press and Materials Research Society)

A. Gokirmak and H. Silva,”Composite shallow trench isolation using silicon nitride and doped polysilicon for ultra-low-power CMOS,” 212th Electrochem. Soc. Meeting, 2007, pp. 1299.

A. Gokirmak,”Accumulated body MOSFET,” IEEE – Device Research Conference Digest, 2006, pp. 77-78.

A. Gokirmak and S. Tiwari, “Ultra-narrow width air-gap si FET integrated with micro-fluidic delivery for charge based sensing (invited paper),” 600818, 6008-44, Proceedings of SPIE Optics East Conference 2005.

A. Gokirmak and S. Tiwari, “Micrometer scale silicon dioxide tunnels for on-chip fluidic sample delivery to nanometer-scale chemical sensors,” 131-136, 872, Mater. Res. Soc. Symp. Proc. Spring 2005. Pdf copy (Copyright 2005 Cambridge University Press and Materials Research Society)

A. Gokirmak and S. Tiwari, “A silicon nitride based shallow trench isolation with side-gate for CMOS integration with MEMS components for system-on-chip applications,” 235-240, 833, Mater. Res. Soc. Symp. Proc. Spring 2004. Pdf copy (Copyright 2004 Cambridge University Press and Materials Research Society)