Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Ghorai, Sagar"'
Autor:
Ghorai, Sagar, Clulow, Rebecca, Cedervall, Johan, Huang, Shuo, Ericsson, Tore, Häggström, Lennart, Skini, Ridha, Shtender, Vitalii, Vitos, Levente, Eriksson, Olle, Scheibel, Franziska, Gutfleisch, Oliver, Sahlberg, Martin, Svedlindh, Peter
The non-stoichiometric Fe$_2$P-type (FeMnP$_{0.5}$Si$_{0.5}$)$_{1-x}$(FeV)$_{x}$ alloys ( $x=0, 0.01$, $0.02$, and $0.03$) have been investigated as potential candidates for magnetic refrigeration near room temperature. The magnetic ordering temperat
Externí odkaz:
http://arxiv.org/abs/2410.01747
Autor:
Ghorai, Sagar, Vieira, Rafael Martinho, Shtender, Vitalii, Delczeg-Czirjak, Erna K., Herper, Heike C., Björkman, Torbjörn, Simak, Sergei I., Eriksson, Olle, Sahlberg, Martin, Svedlindh, Peter
The search for energy-efficient and environmentally friendly cooling technologies is a key driver for the development of magnetic refrigeration based on the magnetocaloric effect (MCE). This phenomenon arises from the interplay between magnetic and l
Externí odkaz:
http://arxiv.org/abs/2307.00128
Publikováno v:
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL. 72, 2023
In order to find a highly efficient, environment-friendly magnetic refrigerant, direct measurements of the adiabatic temperature change $\Delta T_{adb}$ is required. Here, in this work, a simple setup for the $\Delta T_{adb}$ measurement is presented
Externí odkaz:
http://arxiv.org/abs/2210.11509
Autor:
Ghorai, Sagar, Cedervall, Johan, Clulow, Rebecca, Huang, Shuo, Ericsson, Tore, Häggström, Lennart, Shtender, Vitalii, Delczeg-Czirjak, Erna K., Vitos, Levente, Eriksson, Olle, Sahlberg, Martin, Svedlindh, Peter
Publikováno v:
Phys. Rev. B 107, 104409 (2022)
Giant magnetocaloric (GMC) materials constitute a requirement for near room temperature magnetic refrigeration. (Fe,Mn)$_2$(P,Si) is a GMC compound with strong magnetoelastic coupling. The main hindrance towards application of this material is a comp
Externí odkaz:
http://arxiv.org/abs/2209.14962
Publikováno v:
J.AlloysCompd.895,162714(2022)
The structural, magnetic, magnetocaloric and Griffiths phase (GP) disorder of non-stoichiometric perovskite manganites La_(0.8-x) Sr_(0.2-y) Mn_(1+x+y) O_3 are reported here. Determination of valence states and structural phases evidenced that the sm
Externí odkaz:
http://arxiv.org/abs/2108.13251
Publikováno v:
J.Magn.Magn.Mater.529 (2021),167893
Disorder induced by chemical inhomogeneity and Jahn-Teller (JT) distortions is often observed in mixed valence perovskite manganites. The main reasons for the evolution of this disorder are connected with the cationic size differences and the ratio b
Externí odkaz:
http://arxiv.org/abs/2009.11157
Publikováno v:
Scientific Reports, volume 10, Article number: 19485 (2020)
La0.4Pr0.3Ca0.1Sr0.2MnO3 has been investigated as a potential candidate for room temperature magnetic refrigeration. Results from X-ray powder diffraction reveal an orthorhombic structure with Pnma space group. The electronic and chemical properties
Externí odkaz:
http://arxiv.org/abs/2006.10010
Publikováno v:
J. Phys.: Condens. Matter 33 145801, 2021
Polycrystalline La1-xPbxMnO3+-y (x = 0.3, 0.35, 0.4) solid solutions were prepared by solid state reaction method and their magnetic properties have been investigated. Rietveld refinement of X-ray powder diffraction patterns showed that all samples a
Externí odkaz:
http://arxiv.org/abs/2003.10207
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 June 2022 552
Publikováno v:
In Journal of Alloys and Compounds 25 February 2022 895 Part 2