Zobrazeno 1 - 10
of 155
pro vyhledávání: '"Mukhopadhyay, Sanghamitra"'
Adoption of renewable energy is essential to address the challenge of climate change, but that necessitates energy storage technologies. Lithium-ion batteries, the most ubiquitous solution, are insufficient for large-scale applications, so sodium-ion
Externí odkaz:
http://arxiv.org/abs/2304.08621
Autor:
Kumar, Sajan, Gupta, Mayanak K., Goel, Prabhatasree, Mittal, Ranjan, Mukhopadhyay, Sanghamitra, Le, Manh Duc, Shukla, Rakesh, Achary, Srungarpu N., Tyagi, Avesh K., Chaplot, Samrath L.
We present the investigations on atomic dynamics and Li+ diffusion in crystalline and amorphous Li2Si2O5 using quasielastic (QENS) and inelastic neutron scattering (INS) studies supplemented by ab-initio molecular dynamics simulations (AIMD). The QEN
Externí odkaz:
http://arxiv.org/abs/2210.09003
Autor:
Mittal, Ranjan, Kumar, Sajan, Gupta, Mayanak K., Mishra, Sanjay K., Mukhopadhyay, Sanghamitra, Le, Manh Duc, Shukla, Rakesh, Achary, Srungarpu N., Tyagi, Avesh K., Chaplot, Samrath L.
We have performed quasielastic and inelastic neutron scattering (QENS and INS) measurements from 300 K to 1173 K to investigate the Na-diffusion and underlying host dynamics in Na2Ti3O7. The QENS data show that the Na atoms undergo localized jumps up
Externí odkaz:
http://arxiv.org/abs/2107.09905
Autor:
Gupta, Mayanak K., Mishra, Sanjay K., Mittal, Ranjan, Singh, Baltej, Goel, Prabhatasree, Mukhopadhyay, Sanghamitra, Shukla, Rakesh, Achary, Srungarpu N., Tyagi, Avesh K., Chaplot, Samrath L.
Publikováno v:
Phys. Rev. Materials 4, 045802 (2020)
We have investigated the dynamics of Na ions in amorphous Na2Si2O5, a potential solid electrolyte material for Na-battery. We have employed quasielastic neutron scattering (QENS) technique in the amorphous Na2Si2O5 from 300 to 748 K to understand the
Externí odkaz:
http://arxiv.org/abs/1909.07124
Autor:
Moratalla, Manuel, Gebbia, Jonathan F., Ramos, Miguel Angel, Pardo, Luis Carlos, Mukhopadhyay, Sanghamitra, Rudić, Svemir, Fernandez-Alonso, Felix, Bermejo, Francisco Javier, Tamarit, Josep Lluis
Publikováno v:
Phys. Rev. B 99, 024301 (2019)
Both structural glasses and disordered crystals are known to exhibit anomalous thermal, vibrational, and acoustic properties at low temperatures or low energies, what is still a matter of lively debate. To shed light on this issue, we studied the hal
Externí odkaz:
http://arxiv.org/abs/1901.04429
Autor:
Ryder, Matthew R., Van de Voorde, Ben, Civalleri, Bartolomeo, Bennett, Thomas D., Mukhopadhyay, Sanghamitra, Cinque, Gianfelice, Fernandez-Alonso, Felix, De Vos, Dirk, Rudić, Svemir, Tan, Jin-Chong
Publikováno v:
Phys. Rev. Lett. 118, 255502 (2017)
We show clear experimental evidence of co-operative terahertz (THz) dynamics observed below 3 THz (~100 cm-1), for a low-symmetry Zr-based metal-organic framework (MOF) structure, termed MIL-140A [ZrO(O2C-C6H4-CO2)]. Utilizing a combination of high-r
Externí odkaz:
http://arxiv.org/abs/1703.06827
Autor:
Demmel Franz, Perrichon Adrien, McPhail David, Luna Dapica Paula, Webb Nick, Cook Andy, Schooneveld Erik, Boxall Johnny, Rhodes Nigel, Lockett Cyril, Dabinett Colin, Hodder Joel, Nye Daniel, Mukhopadhyay Sanghamitra, Silverwood Ian, Sarter Mona, Garcia Sakai Victoria, Fernandez-Alonso Felix
Publikováno v:
EPJ Web of Conferences, Vol 286, p 03005 (2023)
In December 1997 the Osiris beamline at the ISIS facility, UK, recorded its first neutron spectrum. The instrument enjoyed a first stint as a cold neutron diffractometer before the spectroscopic capabilities were fully commissioned. Osiris soon beca
Externí odkaz:
https://doaj.org/article/ac03b7a639a94d359336c0ebbcaed4e8
Autor:
Durniak Céline, González Miguel Angel, Markvardsen Anders, Mukhopadhyay Sanghamitra, Lang Franz, Rod Thomas Holm
Publikováno v:
EPJ Web of Conferences, Vol 286, p 06001 (2023)
This paper reports on the development of a collection of dynamical models of one-dimensional peak profile functions used to fit dynamic structure factors S (Q, ħω) of Quasi Elastic Neutron Scattering (QENS) data. The objective of this development i
Externí odkaz:
https://doaj.org/article/926b2a27aafd41e8a52ebfe12503acbe
Publikováno v:
In Physica B: Physics of Condensed Matter 15 June 2019 563:41-49
Publikováno v:
In Physica B: Physics of Condensed Matter 15 December 2018 551:443-448