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Journal Articles

Quantum materials for energy-efficient neuromorphic computing: Opportunities and challenges

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Axel Hoffmann, Shriram Ramanathan, Julie Grollier, Andrew D. Kent, Marcelo J. Rozenberg, Ivan K. Schuller, Oleg G. Shpyrko, Robert C. Dynes, Yeshaiahu Fainman, Alex Frano, Eric E. Fullerton, Giulia Galli, Vitaliy Lomakin, Shyue Ping Ong, Amanda K. Petford-Long, Jonathan A. Schuller, Mark D. Stiles, Yayoi Takamura, Yimei Zhu
Journal: APL Materials
APL Mater. 10, 070904 (2022)
https://doi.org/10.1063/5.0094205
Published: July 2022
View article titled, Quantum materials for energy-efficient neuromorphic computing: Opportunities and challenges
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Journal Articles

Synthesis and electrical behavior of VO2 thin films grown on SrRuO3 electrode layers

Chengyang Zhang, Ravindra Singh Bisht, Amin Nozariasbmarz, Arnob Saha, Chan Su Han, Qi Wang, Yifan Yuan, Abhronil Sengupta, Shashank Priya, Shriram Ramanathan
Journal: Journal of Vacuum Science & Technology A
J. Vac. Sci. Technol. A 40, 043405 (2022)
https://doi.org/10.1116/6.0001798
Published: June 2022
View article titled, Synthesis and electrical behavior of VO<sub>2</sub> thin films grown on SrRuO<sub>3</sub> electrode layers
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Journal Articles

Nanoscale thermal imaging of VO2 via Poole–Frenkel conduction

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Alyson Spitzig, Adam Pivonka, Alex Frenzel, Jeehoon Kim, Changhyun Ko, You Zhou, Eric Hudson, Shriram Ramanathan, Jennifer E. Hoffman, Jason D. Hoffman
Journal: Applied Physics Letters
Appl. Phys. Lett. 120, 151602 (2022)
https://doi.org/10.1063/5.0086932
Published: April 2022
View article titled, Nanoscale thermal imaging of VO<sub>2</sub> via Poole–Frenkel conduction
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Includes: Supplementary data
Journal Articles

VO2 nanophotonics

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Sébastien Cueff, Jimmy John, Zhen Zhang, Jorge Parra, Jianing Sun, Régis Orobtchouk, Shriram Ramanathan, Pablo Sanchis
Journal: APL Photonics
APL Photonics 5, 110901 (2020)
https://doi.org/10.1063/5.0028093
Published: November 2020
View article titled, VO<sub>2</sub> nanophotonics
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Journal Articles

Organismic materials for beyond von Neumann machines

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Hai-Tian Zhang, Priyadarshini Panda, Jerome Lin, Yoav Kalcheim, Kai Wang, John W. Freeland, Dillon D. Fong, Shashank Priya, Ivan K. Schuller, Subramanian K. R. S. Sankaranarayanan, Kaushik Roy, Shriram Ramanathan
Journal: Applied Physics Reviews
Appl. Phys. Rev. 7, 011309 (2020)
https://doi.org/10.1063/1.5113574
Published: January 2020
View article titled, Organismic materials for beyond von Neumann machines
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Journal Articles

Thermally tunable VO2-SiO2 nanocomposite thin-film capacitors

Yifei Sun, K. V. L. V. Narayanachari, Chenghao Wan, Xing Sun, Haiyan Wang, Kayla A. Cooley, Suzanne E. Mohney, Doug White, Amy Duwel, Mikhail A. Kats, Shriram Ramanathan
Journal: Journal of Applied Physics
J. Appl. Phys. 123, 114103 (2018)
https://doi.org/10.1063/1.5011641
Published: March 2018
View article titled, Thermally tunable VO<sub>2</sub>-SiO<sub>2</sub> nanocomposite thin-film capacitors
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Journal Articles

Preface for Special Topic: Ionotronics

Dillon D. Fong, Shriram Ramanathan
Journal: APL Materials
APL Mater. 5, 042201 (2017)
https://doi.org/10.1063/1.4982238
Published: April 2017
View article titled, Preface for Special Topic: Ionotronics
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Journal Articles

Self-limited kinetics of electron doping in correlated oxides

Jikun Chen (陈吉堃), You Zhou, Srimanta Middey, Jun Jiang, Nuofu Chen, Lidong Chen, Xun Shi, Max Döbeli, Jian Shi, Jak Chakhalian, Shriram Ramanathan
Journal: Applied Physics Letters
Appl. Phys. Lett. 107, 031905 (2015)
https://doi.org/10.1063/1.4927322
Published: July 2015
View article titled, Self-limited kinetics of electron doping in correlated oxides
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Includes: Supplementary data
Journal Articles

Current-modulated optical properties of vanadium dioxide thin films in the phase transition region

Shuyan Zhang, Mikhail A. Kats, Yanjie Cui, You Zhou, Yu Yao, Shriram Ramanathan, Federico Capasso
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 211104 (2014)
https://doi.org/10.1063/1.4902924
Published: November 2014
View article titled, Current-modulated optical properties of vanadium dioxide thin films in the phase transition region
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Includes: Supplementary data
Journal Articles

Variations of ionization potential and electron affinity as a function of surface orientation: The case of orthorhombic SnS

Vladan Stevanović, Katy Hartman, R. Jaramillo, Shriram Ramanathan, Tonio Buonassisi, Peter Graf
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 211603 (2014)
https://doi.org/10.1063/1.4879558
Published: May 2014
View article titled, Variations of ionization potential and electron affinity as a function of surface orientation: The case of orthorhombic SnS
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Includes: Supplementary data
Journal Articles

Nonisostructural complex oxide heteroepitaxy

Franklin J. Wong, Shriram Ramanathan
Journal: Journal of Vacuum Science & Technology A
J. Vac. Sci. Technol. A 32, 040801 (2014)
https://doi.org/10.1116/1.4879695
Published: May 2014
View article titled, Nonisostructural complex oxide heteroepitaxy
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Journal Articles

Tunable hyperbolic metamaterials utilizing phase change heterostructures

Harish N. S. Krishnamoorthy, You Zhou, Shriram Ramanathan, Evgenii Narimanov, Vinod M. Menon
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 121101 (2014)
https://doi.org/10.1063/1.4869297
Published: March 2014
View article titled, Tunable hyperbolic metamaterials utilizing phase change heterostructures
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Journal Articles

GaN/VO2 heteroepitaxial p-n junctions: Band offset and minority carrier dynamics

You Zhou, Shriram Ramanathan
Journal: Journal of Applied Physics
J. Appl. Phys. 113, 213703 (2013)
https://doi.org/10.1063/1.4807922
Published: June 2013
View article titled, GaN/VO<sub>2</sub> heteroepitaxial p-n junctions: Band offset and minority carrier dynamics
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Journal Articles

Electrical switching dynamics and broadband microwave characteristics of VO2 radio frequency devices

Sieu D. Ha, You Zhou, Christopher J. Fisher, Shriram Ramanathan, Jacob P. Treadway
Journal: Journal of Applied Physics
J. Appl. Phys. 113, 184501 (2013)
https://doi.org/10.1063/1.4803688
Published: May 2013
View article titled, Electrical switching dynamics and broadband microwave characteristics of VO<sub>2</sub> radio frequency devices
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Journal Articles

Electrostatic gating of metallic and insulating phases in SmNiO3 ultrathin films

Sieu D. Ha, Ulrich Vetter, Jian Shi, Shriram Ramanathan
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 183102 (2013)
https://doi.org/10.1063/1.4804142
Published: May 2013
View article titled, Electrostatic gating of metallic and insulating phases in SmNiO<sub>3</sub> ultrathin films
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Includes: Supplementary data
Journal Articles

Space charge polarization induced memory in SmNiO3/Si transistors

Sang Hyeon Lee, Moonkyung Kim, Sieu D. Ha, Jo-Won Lee, Shriram Ramanathan, Sandip Tiwari
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 072102 (2013)
https://doi.org/10.1063/1.4790394
Published: February 2013
View article titled, Space charge polarization induced memory in SmNiO<sub>3</sub>/Si transistors
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Journal Articles

Ultra-thin perfect absorber employing a tunable phase change material

Mikhail A. Kats, Deepika Sharma, Jiao Lin, Patrice Genevet, Romain Blanchard, Zheng Yang, M. Mumtaz Qazilbash, D. N. Basov, Shriram Ramanathan, Federico Capasso
Journal: Applied Physics Letters
Appl. Phys. Lett. 101, 221101 (2012)
https://doi.org/10.1063/1.4767646
Published: November 2012
View article titled, Ultra-thin perfect absorber employing a tunable phase change material
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Includes: Supplementary data
Journal Articles

Evolution of local work function in epitaxial VO2 thin films spanning the metal-insulator transition

Ahrum Sohn, Haeri Kim, Dong-Wook Kim, Changhyun Ko, Shriram Ramanathan, Jonghyurk Park, Giwan Seo, Bong-Jun Kim, Jun-Hwan Shin, Hyun-Tak Kim
Journal: Applied Physics Letters
Appl. Phys. Lett. 101, 191605 (2012)
https://doi.org/10.1063/1.4766292
Published: November 2012
View article titled, Evolution of local work function in epitaxial VO<sub>2</sub> thin films spanning the metal-insulator transition
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Journal Articles

Heteroepitaxial VO2 thin films on GaN: Structure and metal-insulator transition characteristics

You Zhou, Shriram Ramanathan
Journal: Journal of Applied Physics
J. Appl. Phys. 112, 074114 (2012)
https://doi.org/10.1063/1.4758185
Published: October 2012
View article titled, Heteroepitaxial VO<sub>2</sub> thin films on GaN: Structure and metal-insulator transition characteristics
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Journal Articles

Electrothermal actuation of metal-insulator transition in SmNiO3 thin film devices above room temperature

Sieu D. Ha, B. Viswanath, Shriram Ramanathan
Journal: Journal of Applied Physics
J. Appl. Phys. 111, 124501 (2012)
https://doi.org/10.1063/1.4729490
Published: June 2012
View article titled, Electrothermal actuation of metal-insulator transition in SmNiO<sub>3</sub> thin film devices above room temperature
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