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Thermal Hall and Nernst responses in ultrathin magnetic films of pyrochlore lattice
, Article Journal of Physics Condensed Matter ; Volume 33, Issue 26 , 2021 ; 09538984 (ISSN) ; Kargarian, M ; Langari, A ; Sharif University of Technology
IOP Publishing Ltd
2021
Abstract
The ultrathin films of pyrochlore lattice along [111] direction provide a fertile ground for exploring topological states in oxide materials, where the electron correlations are strong and magnetically ordered states are favored. As a result of strong interactions, most of states are magnetic insulators with strong Dzyaloshinskii–Moriya and anisotropic spin interactions. We considered three types of heterostructures, a bilayer of triangular-kagome (TK), and two trilayers of triangular-kagome-triangular (TKT) and kagome-triangular-kagome (KTK) thin films. The ground states are magnetically ordered with the low-energy excitations, the magnons, characterized by nontrivial topology. While for TK...
Retraction notice to “Numerical study on free convection in a U-shaped CuO/water nanofluid-filled cavity with different aspect ratios using double-MRT lattice Boltzmann” [Therm. Sci. Eng. Progr. 14(2019), 100373]
, Article Thermal Science and Engineering Progress ; Volume 21 , 2021 ; 24519049 (ISSN) ; Hooshmand, P ; Mohammaei, M ; Ross, D ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of the Editor-in-Chief. Concern has been raised about the identity of the author “David Ross” as the listed institution has denied the affiliation of a person with this name. Further inquiry revealed that the names of the co-authors were added to the revised version of the article without notifying the handling Editor, which is contrary to the journal policy on changes to authorship. Also, the co-authors were not able to provide a reasonable description of their contribution to the article....
Heat transfer in turbulent nanofluids: separation flow studies and development of novel correlations
, Article Advanced Powder Technology ; Volume 31, Issue 8 , August , 2020 , Pages 3120-3133 ; Shafii, M. B ; Salami, E ; Muhamad, M. R ; Yarmand, H ; Gharehkhani, S ; Chowdhury, Z. Z ; Kazi, S. N ; Badarudin, A ; Sharif University of Technology
Elsevier B.V
2020
Abstract
Convective heat transfer plays a significant role in numerous industrial cooling and heating applications. This method of heat transfer can be passively improved by reconfiguring flow passage, fluid thermophysical properties, or boundary conditions. The broader scope of nanotechnology introduced several studies of thermal engineering and heat transfer. Nano-fluids are one of such technology which can be thought of engineered colloidal fluids with nano-sized particles. In the present study, turbulent forced convection heat transfer to nanofluids in an axisymmetric abrupt expansion heat exchanger was investigated experimentally. During heat transfer investigation, the functionalized...