Magnetoelectric Effects and Charge-Imbalanced Solenoids: Antiferro Quadrupole Orders in a Diamond Structure

Abstract

We study magnetoelectric (magneto-current) effects in a diamond structure under antiferro quadrupole (AFQ) orders. The AFQ orders break the spacial inversion symmetry and cause the current-induced magnetization. The current-induced magnetization strongly depends on the types of the order parameters and the direction of the current. This gives a way to the experimental identification of AFQ order parameters. We also discuss the current-induced magnetization under the AFQ orders in the diamond structure can be intuitively understood in terms of charge-imbalanced solenoids.

5 pages, 4 figures

References in corpus (3)

• Toroidal order in metals without local inversion symmetry
• Current-induced Orbital and Spin Magnetizations in Crystals with Helical Structure
• NMR Observation of Ferro-quadrupole Order in PrTi2Al20

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