Zobrazeno 1 - 10
of 407
pro vyhledávání: '"Patrick E Hopkins"'
Autor:
Md. Rafiqul Islam, Pravin Karna, John A. Tomko, Eric R. Hoglund, Daniel M. Hirt, Md Shafkat Bin Hoque, Saman Zare, Kiumars Aryana, Thomas W. Pfeifer, Christopher Jezewski, Ashutosh Giri, Colin D. Landon, Sean W. King, Patrick E. Hopkins
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract As metallic nanostructures shrink towards the size of the electronic mean free path, thermal conductivity decreases due to increased electronic scattering rates. Matthiessen’s rule is commonly applied to assess changes in electron scatteri
Externí odkaz:
https://doaj.org/article/bd78f8ef7ed249f89adcfcca5701f951
Autor:
John A. Tomko, Michael J. Johnson, David R. Boris, Tzvetelina B. Petrova, Scott G. Walton, Patrick E. Hopkins
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
When a plasma interacts with a surface, different thermal effects may arise. Here, the authors explore plasma interactions with a surface that produce a surface cooling effect.
Externí odkaz:
https://doaj.org/article/992f403c9a474e8694d99978728504f9
Publikováno v:
npj Computational Materials, Vol 8, Iss 1, Pp 1-7 (2022)
Abstract We discuss the role of atomic coordination in dictating the vibrational characteristics and thermal conductivity in amorphous carbon. Our systematic atomistic simulations on amorphous carbon structures at varying mass densities show the sign
Externí odkaz:
https://doaj.org/article/be812890e1c34132a4ed0824cf9f81a8
Autor:
Kiumars Aryana, John A. Tomko, Ran Gao, Eric R. Hoglund, Takanori Mimura, Sara Makarem, Alejandro Salanova, Md Shafkat Bin Hoque, Thomas W. Pfeifer, David H. Olson, Jeffrey L. Braun, Joyeeta Nag, John C. Read, James M. Howe, Elizabeth J. Opila, Lane W. Martin, Jon F. Ihlefeld, Patrick E. Hopkins
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Materials with tunable thermal properties enable on-demand control of temperature and heat flow. Here, the authors demonstrate how thermal conductivity of an antiferroelectric solid can be bi-directionally switched to 10% lower and 25% higher values
Externí odkaz:
https://doaj.org/article/e3bc4a1f7288466294edf2e8876ae9ad
Autor:
Kiumars Aryana, Yifei Zhang, John A. Tomko, Md Shafkat Bin Hoque, Eric R. Hoglund, David H. Olson, Joyeeta Nag, John C. Read, Carlos Ríos, Juejun Hu, Patrick E. Hopkins
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Integrated nanophotonics is an emerging research direction that has attracted great interests. Here, the authors show upon substituting Te with Se, the thermal conductivity of ordered Ge2Sb2Te5 transitions from an electron to a phonon dominated regim
Externí odkaz:
https://doaj.org/article/4972d623a8c84f4da132e2b64178c7e0
Autor:
Christina M. Rost, Daniel L. Schmuckler, Clifton Bumgardner, Md Shafkat Bin Hoque, David R. Diercks, John T. Gaskins, Jon-Paul Maria, Geoffrey L. Brennecka, Xiadong Li, Patrick E. Hopkins
Publikováno v:
APL Materials, Vol 10, Iss 12, Pp 121108-121108-6 (2022)
As various property studies continue to emerge on high entropy and entropy-stabilized ceramics, we seek a further understanding of the property changes across the phase boundary between “high-entropy” and “entropy-stabilized” phases. The ther
Externí odkaz:
https://doaj.org/article/b5a98f7415b446a397f8bd06157bc79e
Autor:
Kiumars Aryana, Derek A. Stewart, John T. Gaskins, Joyeeta Nag, John C. Read, David H. Olson, Michael K. Grobis, Patrick E. Hopkins
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
The reduction in thermal conductivity is usually achieved by increasing the scattering rate or localization of heat carriers. Here, the authors propose a mechanism to suppress the thermal transport in amorphous systems such as SiTe binary alloys via
Externí odkaz:
https://doaj.org/article/4935055964874d63a1b5614d9d910b80
Autor:
Kiumars Aryana, John T. Gaskins, Joyeeta Nag, Derek A. Stewart, Zhaoqiang Bai, Saikat Mukhopadhyay, John C. Read, David H. Olson, Eric R. Hoglund, James M. Howe, Ashutosh Giri, Michael K. Grobis, Patrick E. Hopkins
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Designing efficient, fast and low power consumption phase change memories remains a challenge. Aryana et al. propose a strategy to reduce operating currents by manipulating the interfacial thermal resistance between the phase change unit and the elec
Externí odkaz:
https://doaj.org/article/5604de4866a44c3cbb46d9cb810c801e
Autor:
Md Shafkat Bin Hoque, Milena Milich, Md Sabbir Akhanda, Sashank Shivakumar, Eric R. Hoglund, Dragos Staicu, Mingde Qin, Kathleen F. Quiambao-Tomko, John A. Tomko, Jeffrey L. Braun, Joshua Gild, David H. Olson, Kiumars Aryana, Yee Rui Koh, Roisul Galib, Luka Vlahovic, Davide Robba, John T. Gaskins, Mona Zebarjadi, Jian Luo, Patrick E. Hopkins
Publikováno v:
Journal of the European Ceramic Society. 43:4581-4587
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9abe9d5460797230364da92228af56d3
https://doi.org/10.1016/j.jeurceramsoc.2023.03.065
https://doi.org/10.1016/j.jeurceramsoc.2023.03.065
Autor:
Hasan Babaei, Mallory E. DeCoster, Minyoung Jeong, Zeinab M. Hassan, Timur Islamoglu, Helmut Baumgart, Alan J. H. McGaughey, Engelbert Redel, Omar K. Farha, Patrick E. Hopkins, Jonathan A. Malen, Christopher E. Wilmer
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Metal-organic frameworks are attractive adsorbents for gas storage and separations, but appropriate heat dissipation is important for practical application. Here the authors use experiment and theory to show the impact of liquid adsorbates on thermal
Externí odkaz:
https://doaj.org/article/2199b276abee4be3bbe21f1833c8be43