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<p>This study investigates the ferromagnetic phase transition of Nanoperm-type Fe<sub>88</sub>Zr<sub>7</sub>B<sub>4</sub>Cu<sub>1</sub> Metallic Glasses using a metanalytical approach that combines magnetocaloric and critical behavior investigations. Melt-spinning is employed to create Fe<sub>88</sub>Zr<sub>7</sub>B<sub>4</sub>Cu<sub>1</sub> Metallic Glasses and subsequently assessed their magnetocaloric performance, magnetic phase transition characteristics, and glass-forming ability. The ribbons are synthesized, exhibiting a characteristic amorphous structure in X-ray diffraction and Differential Scanning Calorimetry analyses. A notable magnetic entropy change (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:{\varDelta\:S}_{M}\)</EquationSource> </InlineEquation>) of 1.62(5) J/kgK and a relative cooling power (<InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\:RCP\)</EquationSource> </InlineEquation>) of 29.6(4) J/kg is attained across an extensive temperature range (<InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(\:{{\updelta\:}}_{FWHM})\)</EquationSource> </InlineEquation> of 19&#xa0;K, under a magnetic field of 2.5 T. The analysis of temperature and field-dependent magnetization near the ferromagnetic-paramagnetic transition indicates a second-order transition with critical parameters <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(\:{T}_{C}\)</EquationSource> </InlineEquation> = 286.2(3) K, <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(\:\beta\:\)</EquationSource> </InlineEquation> = 0.435(3), <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(\:\gamma\:\)</EquationSource> </InlineEquation> = 1.24(2), from modified Arrott plot and <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(\:\delta\:\)</EquationSource> </InlineEquation> = 2.96(4) from CIA analysis, reflecting 3D-Heisenberg characteristics and suggesting ferromagnetic short-range correlations.</p>

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Exploring critical exponent and glass-forming ability of nanoperm type-Fe88Zr7B4Cu1 metallic glasses: an integrated experimental and theoretical approach

  • 期刊论文

  • 发表日期：

    2025年7月2日

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  • Anjana Vinod,
  • Arvindha Babu Diraviam,
  • Manivel Raja Muthuvel,
  • Madhuri Wuppulluri

摘要

This study investigates the ferromagnetic phase transition of Nanoperm-type Fe88Zr7B4Cu1 Metallic Glasses using a metanalytical approach that combines magnetocaloric and critical behavior investigations. Melt-spinning is employed to create Fe88Zr7B4Cu1 Metallic Glasses and subsequently assessed their magnetocaloric performance, magnetic phase transition characteristics, and glass-forming ability. The ribbons are synthesized, exhibiting a characteristic amorphous structure in X-ray diffraction and Differential Scanning Calorimetry analyses. A notable magnetic entropy change ( \(\:{\varDelta\:S}_{M}\) ) of 1.62(5) J/kgK and a relative cooling power ( \(\:RCP\) ) of 29.6(4) J/kg is attained across an extensive temperature range ( \(\:{{\updelta\:}}_{FWHM})\) of 19 K, under a magnetic field of 2.5 T. The analysis of temperature and field-dependent magnetization near the ferromagnetic-paramagnetic transition indicates a second-order transition with critical parameters \(\:{T}_{C}\) = 286.2(3) K, \(\:\beta\:\) = 0.435(3), \(\:\gamma\:\) = 1.24(2), from modified Arrott plot and \(\:\delta\:\) = 2.96(4) from CIA analysis, reflecting 3D-Heisenberg characteristics and suggesting ferromagnetic short-range correlations.