Work

Why typical magnetic metals and oxides have different Curie temperatures

Year: 2018

Type: article

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.

Source: AIP Advances

DOI: 10.1063/1.5035142

Authors: W. H. Qi, Z. Z. Li, L. Ma, G. D. Tang, G. H. Wu

Institutions: Hebei Normal University, Chinese Academy of Sciences, Institute of Physics, State Key Laboratory of Magnetism

Language: English

Topic: Magnetic and transport properties of perovskites and related materials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,350

OpenAlex ID: W2806132379

FWCI: 0.462

Cites: 36

Cited by: 9

Related to: 10