Unknown

Dataset Information

0

Unusual Electrical Transport Driven by the Competition between Antiferromagnetism and Ferromagnetism in Antiperovskite Mn₃Zn1-xCoxN.


ABSTRACT: The magnetic, electrical transport and thermal expansion properties of Mn₃Zn1-xCoxN (x = 0.2, 0.4, 0.5, 0.7, 0.9) have been systematically investigated. Co-doping in Mn₃ZnN complicates the magnetic interactions, leading to a competition between antiferromagnetism and ferromagnetism. Abrupt resistivity jump phenomenon and negative thermal expansion behavior, both associated with the complex magnetic transition, are revealed in all studied cases. Furthermore, semiconductor-like transport behavior is found in sample x = 0.7, distinct from the metallic behavior in other samples. Below 50 K, resistivity minimum is observed in samples x = 0.4, 0.7, and 0.9, mainly caused by e-e scattering mechanism. We finally discussed the strong correlation among unusual electrical transport, negative thermal expansion and magnetic transition in Mn₃Zn1-xCoxN, which allows us to conclude that the observed unusual electrical transport properties are attributed to the shift of the Fermi energy surface entailed by the abrupt lattice contraction.

SUBMITTER: Chu L 

PROVIDER: S-EPMC5848983 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

altmetric image

Publications

Unusual Electrical Transport Driven by the Competition between Antiferromagnetism and Ferromagnetism in Antiperovskite Mn₃Zn<sub>1-x</sub>Co<sub>x</sub>N.

Chu Lihua L   Ding Lei L   Wang Cong C   Li Meicheng M   Guo Yanjiao Y   Liu Zhuohai Z  

Materials (Basel, Switzerland) 20180212 2


The magnetic, electrical transport and thermal expansion properties of Mn₃Zn<sub>1-x</sub>Co<sub>x</sub>N (x = 0.2, 0.4, 0.5, 0.7, 0.9) have been systematically investigated. Co-doping in Mn₃ZnN complicates the magnetic interactions, leading to a competition between antiferromagnetism and ferromagnetism. Abrupt resistivity jump phenomenon and negative thermal expansion behavior, both associated with the complex magnetic transition, are revealed in all studied cases. Furthermore, semiconductor-li  ...[more]

Similar Datasets

| S-EPMC3796744 | biostudies-literature
| S-EPMC10745959 | biostudies-literature
| S-EPMC3767944 | biostudies-literature
| S-EPMC9899283 | biostudies-literature
| S-EPMC4408983 | biostudies-literature
| S-EPMC4931584 | biostudies-literature
| S-EPMC9533317 | biostudies-literature
| S-EPMC5459075 | biostudies-other
| S-EPMC11539102 | biostudies-literature
| S-EPMC5082717 | biostudies-literature