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Journal Articles

Impact of carbon dioxide loading on the thermal conductivity of metal organic frameworks

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Sandip Thakur, Ashutosh Giri
Journal: The Journal of Chemical Physics
J. Chem. Phys. 162, 154501 (2025)
https://doi.org/10.1063/5.0252904
Published: April 2025
View articletitled, Impact of carbon dioxide loading on the thermal conductivity of metal organic frameworks
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Journal Articles

Relationship between cosmic ray intensity and Earth's magnetic field: Cross-wavelet analysis during intense and moderate geomagnetic storms

Open Access
Chali Idosa Uga, Sujan Prasad Gautam, Binod Adhikari, Ashok Silwal, Ashutosh Giri
Journal: Physics of Plasmas
Phys. Plasmas 31, 092901 (2024)
https://doi.org/10.1063/5.0201135
Published: September 2024
View articletitled, Relationship between cosmic ray intensity and Earth's magnetic field: Cross-wavelet analysis during intense and moderate geomagnetic storms
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Journal Articles

Quasi-harmonic theory for phonon thermal boundary conductance at high temperatures

Open Access
Patrick E. Hopkins, John A. Tomko, Ashutosh Giri
Journal: Journal of Applied Physics
J. Appl. Phys. 131, 015101 (2022)
https://doi.org/10.1063/5.0071429
Published: January 2022
View articletitled, Quasi-harmonic theory for phonon thermal boundary conductance at high temperatures
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Journal Articles

Uniquely anisotropic mechanical and thermal responses of hybrid organic–inorganic perovskites under uniaxial strain

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Muhammad Akif Rahman, Ashutosh Giri
Journal: The Journal of Chemical Physics
J. Chem. Phys. 155, 124703 (2021)
https://doi.org/10.1063/5.0065207
Published: September 2021
View articletitled, Uniquely anisotropic mechanical and thermal responses of hybrid organic–inorganic perovskites under uniaxial strain
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Journal Articles

Resonant phonon modes in fullerene functionalized graphene lead to large tunability of thermal conductivity without impacting the mechanical properties

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Ashutosh Giri, Patrick E. Hopkins
Journal: Journal of Applied Physics
J. Appl. Phys. 125, 205102 (2019)
https://doi.org/10.1063/1.5094061
Published: May 2019
View articletitled, Resonant phonon modes in fullerene functionalized graphene lead to large tunability of thermal conductivity without impacting the mechanical properties
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Journal Articles

Thermal resistance and heat capacity in hafnium zirconium oxide (Hf1–xZrxO2) dielectrics and ferroelectric thin films

Free
Ethan A. Scott, Sean W. Smith, M. David Henry, Christina M. Rost, Ashutosh Giri, John T. Gaskins, Shelby S. Fields, Samantha T. Jaszewski, Jon F. Ihlefeld, Patrick E. Hopkins
Journal: Applied Physics Letters
Appl. Phys. Lett. 113, 192901 (2018)
https://doi.org/10.1063/1.5052244
Published: November 2018
View articletitled, Thermal resistance and heat capacity in hafnium zirconium oxide (Hf1–xZrxO2) dielectrics and ferroelectric thin films
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Includes: Supplementary data
Journal Articles

Elastic mismatch induced reduction of the thermal conductivity of silicon with aluminum nano-inclusions

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Brian F. Donovan, Wade A. Jensen, Long Chen, Ashutosh Giri, S. Joseph Poon, Jerrold A. Floro, Patrick E. Hopkins
Journal: Applied Physics Letters
Appl. Phys. Lett. 112, 213103 (2018)
https://doi.org/10.1063/1.5019269
Published: May 2018
View articletitled, Elastic mismatch induced reduction of the thermal conductivity of silicon with aluminum nano-inclusions
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Includes: Supplementary data
Journal Articles

Reduced dependence of thermal conductivity on temperature and pressure of multi-atom component crystalline solid solutions

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Ashutosh Giri, Jeffrey L. Braun, Patrick E. Hopkins
Journal: Journal of Applied Physics
J. Appl. Phys. 123, 015106 (2018)
https://doi.org/10.1063/1.5010337
Published: January 2018
View articletitled, Reduced dependence of thermal conductivity on temperature and pressure of multi-atom component crystalline solid solutions
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Journal Articles

Hafnium nitride films for thermoreflectance transducers at high temperatures: Potential based on heating from laser absorption

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Christina M. Rost, Jeffrey Braun, Kevin Ferri, Lavina Backman, Ashutosh Giri, Elizabeth J. Opila, Jon-Paul Maria, Patrick E. Hopkins
Journal: Applied Physics Letters
Appl. Phys. Lett. 111, 151902 (2017)
https://doi.org/10.1063/1.5006648
Published: October 2017
View articletitled, Hafnium nitride films for thermoreflectance transducers at high temperatures: Potential based on heating from laser absorption
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Journal Articles

Reducing the thermal conductivity of chemically ordered binary alloys below the alloy limit via the alteration of phonon dispersion relations

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Ashutosh Giri, Jeffrey L. Braun, John A. Tomko, Patrick E. Hopkins
Journal: Applied Physics Letters
Appl. Phys. Lett. 110, 233112 (2017)
https://doi.org/10.1063/1.4985204
Published: June 2017
View articletitled, Reducing the thermal conductivity of chemically ordered binary alloys below the alloy limit via the alteration of phonon dispersion relations
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Includes: Supplementary data
Journal Articles

Localized thin film damage sourced and monitored via pump-probe modulated thermoreflectance

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Brian F. Donovan, John A. Tomko, Ashutosh Giri, David H. Olson, Jeffrey L. Braun, John T. Gaskins, Patrick E. Hopkins
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 88, 054903 (2017)
https://doi.org/10.1063/1.4983205
Published: May 2017
View articletitled, Localized thin film damage sourced and monitored via pump-probe modulated thermoreflectance
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Journal Articles

Breaking network connectivity leads to ultralow thermal conductivities in fully dense amorphous solids

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Jeffrey L. Braun, Sean W. King, Ashutosh Giri, John T. Gaskins, Masanori Sato, Takemasa Fujiseki, Hiroyuki Fujiwara, Patrick E. Hopkins
Journal: Applied Physics Letters
Appl. Phys. Lett. 109, 191905 (2016)
https://doi.org/10.1063/1.4967309
Published: November 2016
View articletitled, Breaking network connectivity leads to ultralow thermal conductivities in fully dense amorphous solids
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Includes: Supplementary data
Journal Articles

Effect of crystalline/amorphous interfaces on thermal transport across confined thin films and superlattices

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Ashutosh Giri, Jeffrey L. Braun, Patrick E. Hopkins
Journal: Journal of Applied Physics
J. Appl. Phys. 119, 235305 (2016)
https://doi.org/10.1063/1.4953683
Published: June 2016
View articletitled, Effect of crystalline/amorphous interfaces on thermal transport across confined thin films and superlattices
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Journal Articles

Analytical model for thermal boundary conductance and equilibrium thermal accommodation coefficient at solid/gas interfaces

Free
Ashutosh Giri, Patrick E. Hopkins
Journal: The Journal of Chemical Physics
J. Chem. Phys. 144, 084705 (2016)
https://doi.org/10.1063/1.4942432
Published: February 2016
View articletitled, Analytical model for thermal boundary conductance and equilibrium thermal accommodation coefficient at solid/gas interfaces
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Journal Articles

Transient thermal and nonthermal electron and phonon relaxation after short-pulsed laser heating of metals

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Ashutosh Giri, Patrick E. Hopkins
Journal: Journal of Applied Physics
J. Appl. Phys. 118, 215101 (2015)
https://doi.org/10.1063/1.4936606
Published: December 2015
View articletitled, Transient thermal and nonthermal electron and phonon relaxation after short-pulsed laser heating of metals
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Journal Articles

Kapitza resistance and the thermal conductivity of amorphous superlattices

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Ashutosh Giri, Patrick E. Hopkins, James G. Wessel, John C. Duda
Journal: Journal of Applied Physics
J. Appl. Phys. 118, 165303 (2015)
https://doi.org/10.1063/1.4934511
Published: October 2015
View articletitled, Kapitza resistance and the thermal conductivity of amorphous superlattices
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Journal Articles

Mechanisms of nonequilibrium electron-phonon coupling and thermal conductance at interfaces

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Ashutosh Giri, John T. Gaskins, Brian F. Donovan, Chester Szwejkowski, Ronald J. Warzoha, Mark A. Rodriguez, Jon Ihlefeld, Patrick E. Hopkins
Journal: Journal of Applied Physics
J. Appl. Phys. 117, 105105 (2015)
https://doi.org/10.1063/1.4914867
Published: March 2015
View articletitled, Mechanisms of nonequilibrium electron-phonon coupling and thermal conductance at interfaces
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Journal Articles

Size effects in the thermal conductivity of gallium oxide (β-Ga2O3) films grown via open-atmosphere annealing of gallium nitride

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Chester J. Szwejkowski, Nicole C. Creange, Kai Sun, Ashutosh Giri, Brian F. Donovan, Costel Constantin, Patrick E. Hopkins
Journal: Journal of Applied Physics
J. Appl. Phys. 117, 084308 (2015)
https://doi.org/10.1063/1.4913601
Published: February 2015
View articletitled, Size effects in the thermal conductivity of gallium oxide (β-Ga2O3) films grown via open-atmosphere annealing of gallium nitride
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Journal Articles

Experimental evidence of excited electron number density and temperature effects on electron-phonon coupling in gold films

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Ashutosh Giri, John T. Gaskins, Brian M. Foley, Ramez Cheaito, Patrick E. Hopkins
Journal: Journal of Applied Physics
J. Appl. Phys. 117, 044305 (2015)
https://doi.org/10.1063/1.4906553
Published: January 2015
View articletitled, Experimental evidence of excited electron number density and temperature effects on electron-phonon coupling in gold films
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Journal Articles

Spectral analysis of thermal boundary conductance across solid/classical liquid interfaces: A molecular dynamics study

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Ashutosh Giri, Patrick E. Hopkins
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 033106 (2014)
https://doi.org/10.1063/1.4891332
Published: July 2014
View articletitled, Spectral analysis of thermal boundary conductance across solid/classical liquid interfaces: A molecular dynamics study
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