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pro vyhledávání: '"Heike, C."'
Experimental data show that under pressure, Gd goes through a series of structural transitions hcp to Sm-type (close-packed rhombohedral) to dhcp that is accompanied by a gradual decrease of the Curie temperature and magnetization till the collapse o
Externí odkaz:
http://arxiv.org/abs/2309.01285
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
Exploration of all-3d Heusler alloys for permanent magnets: an ab initio based high-throughput study
Autor:
Marathe, Madhura, Herper, Heike C.
Heusler alloys have attracted interest in various fields of functional materials since their properties can quite easily be tuned by composition. Here, we have investigated the relatively new class of all-3d Heusler alloys in view of its potential as
Externí odkaz:
http://arxiv.org/abs/2212.07845
Publikováno v:
Journal of Alloys and Compounds, Volume 888, 2021, 161521, ISSN 0925-8388
The Ce$_2$Fe$_{17}$ intermetallic compound has been studied intensely for several decades; its low-temperature state is reported experimentally either as ferromagnetic or antiferromagnetic by different authors, with a measured ordering temperature ra
Externí odkaz:
http://arxiv.org/abs/2201.11573
Autor:
Vishina, Alena, Hedlund, Daniel, Shtender, Vitalii, Delczeg-Czirjak, Erna K., Larsen, Simon R., Vekilova, Olga Yu., Huang, Shuo, Vitos, Levente, Svedlindh, Peter, Sahlberg, Martin, Eriksson, Olle, Herper, Heike C.
A new class of rare-earth-free permanent magnets is proposed. The parent compound of this class is Co$_3$Mn$_2$Ge, and its discovery is the result of first principles theory combined with experimental synthesis and characterisation. The theory is bas
Externí odkaz:
http://arxiv.org/abs/2101.10773
Publikováno v:
In Acta Materialia 1 December 2023 261
Akademický článek
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Autor:
Nadja Gernalzick, Heike C. Spickermann
Transnational American Studies have been developed by international and internationally minded scholars to address the need for border-crossing awareness, knowledge and consciousness of difference. In a decisive change from the comparativist pattern
Publikováno v:
Phys. Rev. B 101, 014426 (2020)
In this work we perform a systematic calculation of the Fe-Ta phase diagram to discover novel hard magnetic phases. By using structure prediction methods based on evolutionary algorithms, we identify two new energetically stable magnetic structures:
Externí odkaz:
http://arxiv.org/abs/1910.10531