Antiferromagnetic ground state in the MnGa$_4$ intermetallic compound

V. Yu. Verchenko; A. A. Tsirlin; D. Kasinathan; S. V. Zhurenko; A. A. Gippius; A. V. Shevelkov

doi:10.1103/PhysRevMaterials.2.044408

Antiferromagnetic ground state in the MnGa$_4$ intermetallic compound

Materials Science 2018-05-09 v2

Authors: V. Yu. Verchenko , A. A. Tsirlin , D. Kasinathan , S. V. Zhurenko , A. A. Gippius , A. V. Shevelkov

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Magnetism of the binary intermetallic compound MnGa $_4$ is re-investigated. Band-structure calculations predict antiferromagnetic behavior in contrast to Pauli paramagnetism reported previously. Magnetic susceptibility measurements on single crystals indeed reveal an antiferromagnetic transition at $T_N=393$ K. Neutron powder diffraction and $^{69,71}$ Ga nuclear quadrupole resonance spectroscopy show collinear antiferromagnetic order with magnetic moments alligned along the [111] direction of the cubic unit cell. The magnetic moment of 0.80(3) $\mu_B$ at 1.5 K extracted from the neutron data is in good agreement with the band-structure results.

Keywords

magnetic structure magnetocaloric effect magnetic phase transitions

Cite

@article{arxiv.1802.03256,
  title  = {Antiferromagnetic ground state in the MnGa$_4$ intermetallic compound},
  author = {V. Yu. Verchenko and A. A. Tsirlin and D. Kasinathan and S. V. Zhurenko and A. A. Gippius and A. V. Shevelkov},
  journal= {arXiv preprint arXiv:1802.03256},
  year   = {2018}
}

Antiferromagnetic ground state in the MnGa$_4$ intermetallic compound

Abstract

Keywords

Cite

Related papers