Why typical magnetic metals and oxides have different Curie temperatures
Source abstract
Abstract
Why do typical magnetic metals and oxides have different Curie temperatures (TC)? For example, TC = 1404, 1043, and 631 K for Co, Fe, and Ni, respectively; and TC = 860 and 369 K for spinel ferrite Fe3O4 and perovskite manganite La0.7Sr0.3MnO3, respectively. Until now, no satisfactory explanation for this magnetic ordering puzzle has been found although Weiss proposed the molecular field assumption for magnetic ordering in 1907. In this letter, we propose an explanation for this puzzle using a Weiss electron pair model based on atomic physics theory.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Crystal Structures and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Hebei Advanced Thin Film Laboratory, Department of Physics, Hebei Normal University 1 , Shijiazhuang City 050024, People’s Republic of China
State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences 2 , Beijing 100190, People’s Republic of China
Funding
the Young schoalar sicence foundation of the education department of Hebei province
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