Ground and Applied-Field-Driven Magnetic States of Antiferromagnets

• URL: http://arxiv.org/abs/2109.03485v1
• Date: Wed, 8 Sep 2021 08:14:14 GMT
• Title: Ground and Applied-Field-Driven Magnetic States of Antiferromagnets
• Authors: Hai-Feng Li and Zikang Tang
• Abstract summary: We use a mean-field mathematical method to calculate the ground states of antiferromagnets. Applying a magnetic field to antiferromagnets can switch it from one magnetic state to another. Our study provides insight into the origins of the various magnetic states.
• Score: 1.3950634140523583
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: As discussed in this chapter, we develop a mean-field mathematical method to calculate the ground states of antiferromagnets and better understand the applied magnetic-field induced exotic properties. Within antiferromagnetic materials competitive and cooperative interactions exist leading to substance extraordinary magnetic states. Our calculations predict that applying a magnetic field to antiferromagnets can switch it from one magnetic state to another. These include antiferromagnetic ground state, spin-flop transition, spin-flopped state, spin-flip transition and spin-flipped state. Our framework successfully demonstrates these phase changes. With this, a map of all equilibrium magnetic ground states, as well as the respective equilibrium phase conditions, are derived. Our study provides insight into the origins of the various magnetic states.

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