Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Susmit Kumar"'
Autor:
Bruno Guilherme Fischer Eggert, Erna K. Delczeg, Fernando Maccari, Susmit Kumar, Oliver Gutfleisch, Helmer Fjellvåg, Bjørn C. Hauback, Christoph Frommen
Publikováno v:
Journal of Alloys and Compounds
A series of V1-x-Fe-Co-Ni-Al1+ x and V1-x-Fe-Co-Ni-Cu1+ x high entropy alloys with varying compositions (0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4093c9daf7b9c8bdab679788744f9e1c
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-486113
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-486113
Autor:
Fabian L. M. Bernal, Ole Martin Løvvik, David S. Wragg, Helmer Fjellvåg, Per-Anders Hansen, Fredrik Lundvall, Susmit Kumar
Publikováno v:
Physical Review Materials. 5
Chromium (II) fluoroperovskites $A{\mathrm{CrF}}_{3}\phantom{\rule{4pt}{0ex}}(A={\mathrm{Na}}^{+},{\mathrm{K}}^{+})$ are strongly correlated Jahn-Teller active materials at low temperatures. In this paper, we examine the role that the $A$-site ion pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73b5726afa4bf8c5751ffb5c734d6bc8
https://doi.org/10.1103/physrevmaterials.5.064420
https://doi.org/10.1103/physrevmaterials.5.064420
Autor:
Ponniah Ravindran, Magnus H. Sørby, Øystein Fjellvåg, Anja Olafsen Sjåstad, Manimuthu Periyasamy, Helmer Fjellvåg, Lokanath Patra, Susmit Kumar
Publikováno v:
ACS Applied Electronic Materials
The physical properties of La4Ni3O10 with a two-dimensional (2D)-like Ruddlesden–Popper-type crystal structure are extraordinarily dependent on temperature and chemical substitution. By introducing Al3+ atoms randomly at Ni sites, the average oxida
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72259784e228c298974b8cf11624231b
https://hdl.handle.net/11250/2767829
https://hdl.handle.net/11250/2767829
The interplay between fluctuations of the local structure and magnetic interactions is of great importance for phenomena like superconductivity, colossal magnetoresistance, and frustrated magnetism. Such local distortions are often subtle and difficu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecec25a99d72a2b319fe819966fa3f8e
http://hdl.handle.net/10852/89778
http://hdl.handle.net/10852/89778
Publikováno v:
Journal of Solid State Chemistry
We report on the structural, magnetic and electronic properties of Rh substituted LaNiO3, LaNi1–xRhxO3 (0 ≤ x ≤ 1). Increased Rh contents are associated with increased structural distortion, and we observe a phase transformation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08bf18bbe9b2c52a86e0ce6ce7cfeaa9
https://hdl.handle.net/11250/3026650
https://hdl.handle.net/11250/3026650
Publikováno v:
Materials & Design, Vol 195, Iss, Pp 109036-(2020)
Materials & design
Materials & design
High performance magnetocaloric materials are crucial to realize the energy efficient and environment friendly magnetic cooling/refrigeration technology. We have designed Mn1-xCuxCoGe compounds possessing a giant magnetocaloric effect near room tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38c487c6973b61b68fed191410037c01
http://www.sciencedirect.com/science/article/pii/S0264127520305712
http://www.sciencedirect.com/science/article/pii/S0264127520305712
The current study extends the insight into solid-state diffusion in alloys of the Platinum Group Metals (PGMs). Thereby, we pave the way for tailor making surface compositions of binary platinum (Pt) – rhodium (Rh) model catalysts, with deposited r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::384781126315064eac72e834eaa1be18
http://hdl.handle.net/10852/73124
http://hdl.handle.net/10852/73124
Autor:
Niels H. Andersen, Ola Nilsen, Magnus H. Sørby, Susmit Kumar, Pushpaka B. Samarasingha, Helmer Fjellvåg
Publikováno v:
Solid State Ionics. 284:28-36
LiMn1.5Ni0.5O4 cathode materials for lithium ion batteries (LIBs) were synthesized by the low cost wet-chemical Pechini technique. Phase analysis by X-ray diffraction shows that extended heat treatment at 900 °C causes precipitation of LixNi1 − xO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b90f8c325ac5314aabe808b379aa0aa
https://doi.org/10.1016/j.ssi.2015.11.018
https://doi.org/10.1016/j.ssi.2015.11.018
Publikováno v:
Journal of Magnetism and Magnetic Materials. 496:165915
Nickelates, just like their isoelectronic cousins (the cuprate superconductors), are candidates for high temperature superconductivity. As charge density waves (CDW) and superconductivity might share a similar microscopic origin and that CDW behaviou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c41f690f8f43eae8e7cf0cdf5c2e755
https://doi.org/10.1016/j.jmmm.2019.165915
https://doi.org/10.1016/j.jmmm.2019.165915
Autor:
Bjørn C. Hauback, Christoph Frommen, Helmer Fjellvåg, K Nielsch, Geir Helgesen, Susmit Kumar, T.G. Woodcock, S.K. Pal
Publikováno v:
Journal of Alloys and Compounds
Structural and magnetic phase transformations and magnetocaloric effect of Mn and Co substitutions by Cu in MnCoGe have been investigated using X-ray diffraction, differential scanning calorimetry, and magnetization measurements. Increase in Cu conce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecebc5d41da0195ff78a1645bbc6cf42
https://hdl.handle.net/11250/2588013
https://hdl.handle.net/11250/2588013