Zobrazeno 1 - 10
of 5 513
pro vyhledávání: '"A. Widom"'
Autor:
Widom, Michael
The AlCrTiV high entropy alloy undergoes an order-disorder transition from body centered cubic (Strukturbericht A2) at high temperatures to the CsCl structure (B2) at intermediate temperatures. We model this transition using first principles Monte Ca
Externí odkaz:
http://arxiv.org/abs/2407.00865
Vibrational properties of solids are key to determining stability, response and functionality. However, they are challenging to computationally predict at Ab-Initio accuracy, even for elemental systems. Ab-Initio methods for modeling atomic interacti
Externí odkaz:
http://arxiv.org/abs/2406.15491
Atomic structures of Al-Co-Cu decagonal quasicrystals (QCs) are investigated using empirical oscillating pair potentials (EOPP) in molecular dynamic (MD) simulations that we enhance by Monte Carlo (MC) swapping of chemical species and replica exchang
Externí odkaz:
http://arxiv.org/abs/2404.14086
Autor:
Widom, Michael
The In-Sn binary alloy system exhibits several unusual features that challenge crystallographic and thermodynamic expectations. We combine first principles total energy calculation with simple thermodynamic modeling to address two key points. First,
Externí odkaz:
http://arxiv.org/abs/2402.03506
Autor:
B. Acharya, J. Alexandre, S. Baines, P. Benes, B. Bergmann, J. Bernabéu, A. Bevan, H. Branzas, M. Campbell, L. Caramete, S. Cecchini, M. de Montigny, A. De Roeck, J.R. Ellis, M. Fairbairn, D. Felea, M. Frank, D. Frekers, C. Garcia, J. Hays, A.M. Hirt, J. Janecek, D.-W. Kim, K. Kinoshita, A. Korzenev, D.H. Lacarrère, S.C. Lee, C. Leroy, G. Levi, A. Lionti, J. Mamuzic, A. Margiotta, N. Mauri, N.E. Mavromatos, P. Mermod, V.A. Mitsou, R. Orava, I. Ostrovskiy, B. Parker, L. Patrizii, G.E. Păvălaş, J.L. Pinfold, V. Popa, M. Pozzato, S. Pospisil, A. Rajantie, R. Ruiz de Austri, Z. Sahnoun, M. Sakellariadou, A. Santra, S. Sarkar, G. Semenoff, A. Shaa, G. Sirri, K. Sliwa, R. Soluk, M. Spurio, Y.N. Srivastava, M. Suk, J. Swain, M. Tenti, V. Togo, J.A. Tuszyński, V. Vento, O. Vives, Z. Vykydal, A. Widom, G. Willems, J.H. Yoon, I.S. Zgura
Publikováno v:
Physics Letters B, Vol 782, Iss , Pp 510-516 (2018)
We update our previous search for trapped magnetic monopoles in LHC Run 2 using nearly six times more integrated luminosity and including additional models for the interpretation of the data. The MoEDAL forward trapping detector, comprising 222 kg of
Externí odkaz:
https://doaj.org/article/59900f35be124f578b14ccedee993bba
Autor:
Huang, Yang, Widom, Michael
Liquid state entropy formulas based on configurational probability distributions are examined for Lennard-Jones fluids across a range temperatures and densities. These formulas are based on expansions of the entropy in series of $n$-body distribution
Externí odkaz:
http://arxiv.org/abs/2312.10474
Refractory high-entropy alloys, RHEAs, are promising high-temperature structural materials. Their large compositional space poses great design challenges for phase control and high strength-ductility synergy. The present research pioneers using integ
Externí odkaz:
http://arxiv.org/abs/2312.04708
Refractory metals exhibit high strength at high temperature, but often lack ductility. Multiprinciple element alloys such as high entropy alloys offer the potential to improve ductility while maintaining strength, but we don't know $a-priori$ what co
Externí odkaz:
http://arxiv.org/abs/2311.17713
The locally self-consistent multiple scattering (LSMS) method can perform efficient first-principles calculations of systems with large number of atoms. In this work, we combine the Kubo-Greenwood equation with LSMS, enabling us to calculate first-pr
Externí odkaz:
http://arxiv.org/abs/2311.12134
Autor:
Widom, Michael, Mihalkovic, Marek
Predicting quasicrystal structures is a multifaceted problem that can involve predicting a previously unknown phase, predicting the structure of an experimentally observed phase, or predicting the thermodynamic stability of a given structure. We surv
Externí odkaz:
http://arxiv.org/abs/2308.09192