What question did this study set out to answer?

This study aims to investigate the structural and magnetic properties of MnFe₂O₄ over a broad temperature range up to its magnetic transition temperature.

May 16, 2026Journal of the Korean Magnetics Society0 citations

Structural and Magnetic Study of Liquid-Nitrogen-Quenched MnFe₂O₄

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SYSunghyun Yoon

Key Points

This study aims to investigate the structural and magnetic properties of MnFe₂O₄ over a broad temperature range up to its magnetic transition temperature.
Analyzed MnFe₂O₄ samples using XRD, SQUID, XPS, and 57Fe Mössbauer spectroscopy.
Synthesized high-quality bulk samples using a conventional ceramic method, followed by rapid quenching in liquid nitrogen.
Maintained consistency in measurements by using a single spectrometer across all temperatures.
Obtained satisfactory analysis of Mössbauer parameters demonstrating temperature-dependent behavior.
Showed low degree of inversion in the B-site Fe3+ ions with varying adjacent cation distribution.
Revealed unique magnetic properties retained across the investigated temperature spectrum.

Abstract

표준 M nFe₂O₄ 시료의 구조적 및 자기적 특성을 XRD, SQUID, XPS 및 57Fe Mössbauer 분광법을 사용하여 20 K에서 자기 전이 온도까지의 넓은 온도 범위에 걸쳐 연구했다. 고품질 덩어리 샘플은 기존의 세라믹 방법을 사용하여 합성한 후 액체 질소를 빠르게 급랭하여 불필요한 2차 상의 생성을 피했다. 또한, 조사된 모든 온도에 걸쳐 단일 분광기를 사용하여 Mössbauer 스펙트럼을 얻음으로써 측정의 일관성을 유지하고자 했다. B-자리 Fe3+ 이온이 다양한 인접 양이온(Mn 및 Fe) 분포를 가질 수 있고 샘플의 반전 정도가 낮다는 사실을 이용함으로써 만족스러운 데이터 분석과 Mössbauer 매개변수의 온도 거동 설명이 가능했다.

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Sunghyun Yoon (2026) studied this question.

synapsesocial.com/papers/6a08093ca487c87a6a40b3db https://doi.org/10.4283/jkms.2026.36.2.144

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May 16, 2026Journal of the Korean Magnetics Society0 citations

Structural and Magnetic Study of Liquid-Nitrogen-Quenched MnFe₂O₄

View Full Paper

SYSunghyun Yoon

Key Points

This study aims to investigate the structural and magnetic properties of MnFe₂O₄ over a broad temperature range up to its magnetic transition temperature.
Analyzed MnFe₂O₄ samples using XRD, SQUID, XPS, and 57Fe Mössbauer spectroscopy.
Synthesized high-quality bulk samples using a conventional ceramic method, followed by rapid quenching in liquid nitrogen.
Maintained consistency in measurements by using a single spectrometer across all temperatures.
Obtained satisfactory analysis of Mössbauer parameters demonstrating temperature-dependent behavior.
Showed low degree of inversion in the B-site Fe3+ ions with varying adjacent cation distribution.
Revealed unique magnetic properties retained across the investigated temperature spectrum.

Abstract

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Cite This Study

Sunghyun Yoon (2026) studied this question.

synapsesocial.com/papers/6a08093ca487c87a6a40b3db https://doi.org/10.4283/jkms.2026.36.2.144

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