Journal of Physics: Condensed Matter

Journal Information
ISSN / EISSN : 09538984 / 1361648X
Current Publisher: IOP Publishing (10.1088)
Total articles ≅ 36,131
Google Scholar h5-index: 60
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Martina Požar, Ivo Jukić, Bernarda Lovrinčević
Journal of Physics: Condensed Matter, Volume 32; doi:10.1088/1361-648x/ab935d

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Charles Haines, S E Dutton, Michael W R Volk, Michael A Carpenter
Journal of Physics: Condensed Matter, Volume 32; doi:10.1088/1361-648x/ab8fd3

Abstract:
Pyrrhotite, Fe7S8, is a commonly occurring carrier of magnetic remanence and has a low temperature transition, the Besnus transition, involving a change in spin state. Variations of the thermodynamic, magnetic and elastic properties through this transition at ~33 K in a natural sample of 4C pyrrhotite have been tested against a group theoretical model for coupling between order parameters relating to Fe/vacancy ordering (irrep U1(1/2,0,1/4)) and magnetic ordering (irreps mΓ4+and mΓ5+). Magnetoelastic coupling is weak but the pre-existing microstructure of ferroelastic and magnetic domains, that develop as a consequence of Fe/vacancy and ferrimagnetic ordering during slow cooling in nature (P63/mmc → C2'/c'), causes subtle changes in the low temperature transition (C2'/c' → P1 ̅). The Besnus transition involves a rotation of magnetic moments out of the a-c plane of the monoclinic structure, but it appears that the transition temperature might vary locally according to whether it is taking place within the pre-existing domain walls or in the domains that they separate. Evidence of metamagnetic transitions suggests that the magnetic field - temperature phase diagram will display some interesting diversity. Low temperature magnetic transitions in minerals of importance to the palaeomagnetism community have been used to identify the presence of magnetite and haematite in rocks and the Besnus transition is diagnostic of the existence of pyrrhotite, Fe7S8.
Ellaine Rose A Beronio, Anne Nicole P Hipolito, Joey D Ocon, Hiroshi Nakanishi, Hideaki Kasai, Allan Abraham Bustria Padama
Journal of Physics: Condensed Matter, Volume 32; doi:10.1088/1361-648x/ab945d

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Enamullah Enamullah, Sunil Kumar Sharma, Sameh S Ahmed
Journal of Physics: Condensed Matter, Volume 32; doi:10.1088/1361-648x/ab96f0

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Kamal Choudhary, Kevin Garrity, Francesca Tavazza
Journal of Physics: Condensed Matter; doi:10.1088/1361-648x/aba06b

Anand Nivedan, Kamal Das, Sandeep Kumar, Arvind Singh, Sougata Mardanya, Amit Agarwal, Sunil Kumar
Journal of Physics: Condensed Matter; doi:10.1088/1361-648x/aba06e

Kejing Zhu, Yunhe Bai, Xiyu Hong, Zuhan Geng, Yuying Jiang, Ruixuan Liu, Yuanzhao Li, Ming Shi, Lili Wang, Wei Li, et al.
Journal of Physics: Condensed Matter; doi:10.1088/1361-648x/aba06d

Ozce Durak, Harun Kulak, Safiyye Kavak, H. Mert Polat, Seda Keskin, Alper Uzun
Journal of Physics: Condensed Matter; doi:10.1088/1361-648x/aba06c

Adebayo Abayomi Adeleke, Adebayo Oluseun Adeniyi, Hu Tang, Huiyang Gou, Yansun Yao
Journal of Physics: Condensed Matter, Volume 32; doi:10.1088/1361-648x/ab96f1

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Mark Kamper Svendsen, Christian Wolff, Antti-Pekka Jauho, N. Asger Mortensen, Christos Tserkezis
Journal of Physics: Condensed Matter, Volume 32; doi:10.1088/1361-648x/ab977d

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