Magnetocapacitance effect and magnetoelectric coupling in type-II multiferroic <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>HoFeWO</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:math>
نویسندگان
چکیده
We have investigated the multiferroicity and magnetoelectric (ME) coupling in $\mathrm{Ho}\mathrm{Fe}\mathrm{W}{\mathrm{O}}_{6}$. With a noncentrosymmetric polar structure (space group Pna${2}_{1}$) at room temperature, this compound shows an onset of electric polarization with antiferromagnetic ordering N\'eel temperature (${T}_{N}$) 17.8 K. The magnetic properties polycrystalline samples were studied by DC AC magnetization heat capacity measurements. metamagnetic behavior low temperatures was found to be directly related dielectric compound. In particular, field-dependent measurements capacitance show magnetocapacitance (MC) effect double-hysteresis loop direct correspondence magnetization. Our x-ray diffraction results Pna${2}_{1}$ down 8 K suggest absence structural phase transition across ${T}_{N}$. Soft absorption spectroscopy soft circular dichroism (XMCD) Fe $L{}_{2,3}$ Ho $M{}_{4,5}$ edges revealed oxidation state cations $3+$. XMCD further that ${\mathrm{Fe}}^{3+}$ are antiferromagnetically ordered noncollinear fashion spins arranged ${90}^{\ensuremath{\circ}}$ respect each other. findings $\mathrm{Ho}\mathrm{Fe}\mathrm{W}{\mathrm{O}}_{6}$ is type-II multiferroic exhibiting MC effect. observed change field, as well their magnetization, support strong ME
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.103.094110