Magnetic behavior of the                    <math>                      <mrow>                        <mn>5</mn>                        <msup>                          <mi>d</mi>                          <mn>1</mn>                        </msup>                      </mrow>                    </math>                    Re-based double perovskite                    <math>                      <mrow>                        <msub>                          <mi>Sr</mi>                          <mn>2</mn>                        </msub>                        <msub>                          <mi>ZnReO</mi>                          <mn>6</mn>                        </msub>                      </mrow>                    </math>

Muhammad Maikudi Isah; Biswajit Dalal; Xun Kang; Dario Fiore Mosca; Ifeanyi John Onuorah; Valerio Scagnoli; Pietro Bonfà; Roberto De Renzi; Alexei A. Belik; Cesare Franchini; Kazunari Yamaura; Samuele Sanna

doi:10.1103/2ngs-7x82

Journal article Magnetic behavior of the $5 d^{1}$ Re-based double perovskite ${Sr}_{2} {ZnReO}_{6}$

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Muhammad Maikudi Isah, Biswajit Dalal, Xun Kang, Dario Fiore Mosca, Ifeanyi John Onuorah, Valerio Scagnoli, Pietro Bonfà, Roberto De Renzi, Alexei A. Belik, Cesare Franchini, Kazunari Yamaura, Samuele Sanna. Magnetic behavior of the

5 d^{1}

Re-based double perovskite

{Sr}_{2} {ZnReO}_{6}

. Physical Review B. 2026, 113 (10), 104431. https://doi.org/10.1103/2ngs-7x82

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We investigate the 5d1 ordered double perovskite Sr2ZnReO6 using synchrotron x-ray diffraction, magnetic susceptibility, muon spin relaxation, and first-principles calculations. Sr2ZnReO6 adopts a low-temperature monoclinic P21/n structure and exhibits a magnetic transition near 12 to 13 K with ferromagnetic-like hysteresis and a very large coercive field (23 kOe at 2 K). Zero-field muSR reveals static, spatially disordered internal fields below the transition, while DFT and force-theorem Hubbard-I calculations identify a canted antiferromagnetic ground state. The strongly reduced effective moment (~0.76 microB) and tiny ordered moment (less than or about 0.2 microB) highlight the dominant role of spin-orbit coupling. Our results establish canted antiferromagnetism in Sr2ZnReO6 and show that an exceptionally large coercivity can coexist with an ultralow ordered moment in a 5d1 double perovskite.

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