Local magnetic properties of the antiferromagnetic metal NaV2O4 with frustrated double-chain structure investigated by NMR and magnetization measurements

Hikaru Takeda, Masayuki Itoh, and Hiroya Sakurai
Phys. Rev. B 86, 174405 – Published 5 November 2012

Abstract

We have made NMR and magnetization measurements on a single crystal to investigate local magnetic properties of an antiferromagnet metal NaV2O4 with a frustrated double-chain structure. In the paramagnetic phase, we find there is a double exchange ferromagnetic interaction, which competes with a superexchange antiferromagnetic interaction, yielding a magnetic frustration. In the magnetically ordered state, we propose an incommensurate helical structure with the bc helical plane, which appears due to the competition between the magnetic interactions, as a spin structure. Thus we conclude that the magnetic frustration closely related to a multi-band effect plays an essential role for the magnetic properties of NaV2O4.

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  • Received 24 July 2012

DOI:https://doi.org/10.1103/PhysRevB.86.174405

©2012 American Physical Society

Authors & Affiliations

Hikaru Takeda and Masayuki Itoh

  • Department of Physics, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan

Hiroya Sakurai

  • National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

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Issue

Vol. 86, Iss. 17 — 1 November 2012

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