TY - JOUR
T1 - Hidden magnetism, nonlinear magnetodielectric coupling, and large multicaloric effect in multiferroic L -type Fe2 (Mo O4)3
AU - Athira, P.
AU - Tiwari, Ajay
AU - Hsieh, M. J.
AU - Lin, J. Y.
AU - Puri, Nidhi
AU - Wang, C. W.
AU - Prashanth, C. H.
AU - Dhanasekhar, C.
AU - Huang, C. L.
AU - Yang, H. D.
AU - Jyothinagaram, Krishnamurthy
AU - Kakarla, D. Chandrasekhar
N1 - Publisher Copyright:
© 2024 American Physical Society.
PY - 2024/5
Y1 - 2024/5
N2 - Fe2(MoO4)3 is a well-established L-type ferrimagnetic (L-FIM) material with field-induced magnetic ordering (TN2) and multiferroic properties below TN1 (around 12 K). In this study, we investigate the magnetic properties of Fe2(MoO4)3 through temperature- and field-dependent ac and dc magnetic susceptibility χ(T) measurements. Isothermal magnetization data reveal an additional metamagnetic transition (HC2) beyond the existing boundary between L-FIM and multiferroic phases (HC1). Frequency-dependent ac magnetic susceptibility data demonstrate reentrant-spin-glass-like behavior below TN1, with a critical temperature (Tg0) of 6.2 K. Notably, a nonlinear magnetodielectric response and concurrent anomalies in M(H) at the two metamagnetic transitions (HC1 and HC2) allude to a profoundly intertwined magnetoelectric (ME) nature. A finite nonlinear ME effect (αME) of about 0.56 ps/m is comparable to that of ME materials such as NdCrTiO5 and MnGa2O4. The temperature-dependent adiabatic temperature change (ΔTm) due to the contribution of magnetic spin entropy exhibits a small value (approximately 0.8 K) with an oscillatory-like magnetocaloric effect. Remarkably, the adiabatic temperature change (ΔTME) owing to magnetoelectric coupling is quite large (5.2 K under a 7 T magnetic field) near TN2. The tunability of TN2 with temperature and magnetic field strength represents a unique multicaloric medium whose temperature and field parameters can be easily adjusted for potential cryogenic applications near liquid-helium temperatures.
AB - Fe2(MoO4)3 is a well-established L-type ferrimagnetic (L-FIM) material with field-induced magnetic ordering (TN2) and multiferroic properties below TN1 (around 12 K). In this study, we investigate the magnetic properties of Fe2(MoO4)3 through temperature- and field-dependent ac and dc magnetic susceptibility χ(T) measurements. Isothermal magnetization data reveal an additional metamagnetic transition (HC2) beyond the existing boundary between L-FIM and multiferroic phases (HC1). Frequency-dependent ac magnetic susceptibility data demonstrate reentrant-spin-glass-like behavior below TN1, with a critical temperature (Tg0) of 6.2 K. Notably, a nonlinear magnetodielectric response and concurrent anomalies in M(H) at the two metamagnetic transitions (HC1 and HC2) allude to a profoundly intertwined magnetoelectric (ME) nature. A finite nonlinear ME effect (αME) of about 0.56 ps/m is comparable to that of ME materials such as NdCrTiO5 and MnGa2O4. The temperature-dependent adiabatic temperature change (ΔTm) due to the contribution of magnetic spin entropy exhibits a small value (approximately 0.8 K) with an oscillatory-like magnetocaloric effect. Remarkably, the adiabatic temperature change (ΔTME) owing to magnetoelectric coupling is quite large (5.2 K under a 7 T magnetic field) near TN2. The tunability of TN2 with temperature and magnetic field strength represents a unique multicaloric medium whose temperature and field parameters can be easily adjusted for potential cryogenic applications near liquid-helium temperatures.
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U2 - 10.1103/PhysRevApplied.21.054025
DO - 10.1103/PhysRevApplied.21.054025
M3 - Article
AN - SCOPUS:85193204370
SN - 2331-7019
VL - 21
JO - Physical Review Applied
JF - Physical Review Applied
IS - 5
M1 - 054025
ER -