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The advent of novel high-entropy oxides has sparked substantial research interest due to their exceptional functional properties, which often surpass the mere sum of their constituent elements' characteristics. This study introduces a…

Strongly Correlated Electrons · Physics 2024-07-31 Neha Sharma , Nikita Sharma , Jyoti Sharma , S. D. Kaushik , Sanjoy Kr. Mahatha , Tirthankar Chakraborty , Sourav Marik

The subtle interplay between spin-orbit coupling, exchange interactions, and cation ordering can lead to exotic magnetic states in transition-metal ions. We report a comprehensive study of the Re-based (5$d^1$) ordered double perovskite…

We present a comprehensive experimental study of magnetization and magnetocaloric effect (MCE) in double perovskite (DP) materials $R_2$NiMnO$_6$ with $R =$ Pr, Nd, Sm, Gd, Tb, and Dy. While a paramagnetic to ferromagnetic transition, with…

Strongly Correlated Electrons · Physics 2021-12-30 Anzar Ali , Kanika Pasrija , Gyaneshwar Sharma , Sanjeev Kumar , Yogesh Singh

We present a comprehensive study on the magnetic structure, dynamics, and phase evolution in the single-phase double perovskite $La_2CoMnO_6$. The mixed valence state due to oxygen deficiency is verified by X-ray photoelectron spectroscopy,…

Magnetic structures and the relationship between spin and charge-orbital orderings of an A-site ordered double-perovskite manganite SmBaMn2O6, an anticipated multiferroic material, were investigated by means of neutron diffraction. The spin…

Strongly Correlated Electrons · Physics 2021-07-14 Ryoji Kiyanagi , Shigeki Yamada , Hiroshi Aoki , Hajime Sagayama , Taketo Moyoshi , Akiko Nakao , Takahisa Arima

The monoclinic double-perovskite Sr2YRuO6 has recently gained a renewed interest in order to get a deeper insight into the exotic magnetic ground states associated with geometric frustration. Striking discrepancies between the spin order…

Materials Science · Physics 2016-04-19 P. L. Bernardo , L. Ghivelder , H. S. Amorim , J. J. Neumeier , S. Garcia

Double perovskites provide a unique opportunity to induce and control multiferroic behaviors in oxide systems. The appealing possibility to design materials with a strong coupling between the magnetization and the polarization fields may be…

Materials Science · Physics 2009-04-06 M. P. Singh , K. D. Truong , P. Fournier , P. Rauwel , E. Rauwel , L. P. Carignan , D. Menard

Commencing from the centrosymmetric MnRMnSbO$_6$ compound, we explore the realm of magnetic polar double-double perovskite oxides characterized by significant ferroelectric polarization. Employing symmetry operations, first-principles…

Materials Science · Physics 2024-03-11 Monirul Shaikh , Duo Wang , Saurabh Ghosh

We report the experimental observation of spin reorientation in the double perovskite Ho$_2$FeCoO$_6$. The magnetic phase transitions in this compound are characterized and studied through magnetization and specific heat, and the magnetic…

The magnetic correlations in double perovskites La2Mn2-xNixO6 (x = 0.5, 0.75, 1.0, 1.25 and 1.5) have been systematically investigated across macroscopic, mesoscopic, and microscopic length scales using temperature-dependent bulk DC…

Materials Science · Physics 2025-10-14 A. K. Bera , K. S. Chikara , B. Saha , S. M. Yusuf , Mohd. Nasir , S. Sen

The emergence of ferro- and ferrimagnetic behavior in insulating materials is uncommon, largely due to Hund's rules. Utilizing symmetry analysis, first-principles methods, and classical Monte Carlo simulations, \textcolor{black}{we report…

Detailed structural measurements were conducted on a new perovskite, ScMnO3, and on orthorhombic LuMnO3. Complementary density functional theory (DFT) calculations were carried out, and predict that ScMnO3 possesses E-phase magnetic order…

Strongly Correlated Electrons · Physics 2015-06-19 T. Yu , T. A. Tyson , H. Y. Chen , A. M. M. Abeykoon , Y. -S. Chen , K. H. Ahn

The field of oxide spintronics can strongly benefit from the establishment of robust ferromagnetic insulators with near room-temperature Curie temperature. Here we investigate the structural, electronic, and magnetic properties of…

Coupling between different interactions allows to control physical aspects in multifunctional materials by perturbing any of the degrees of freedom. Here, we aim to probe the correlation among structural, electronic and magnetic observables…

Materials Science · Physics 2025-07-28 S. Majumder , M. Tripathi , D. O. de Souza , A. Sagdeo , L. Olivi , M. N. Singh , S. Pal , R. J. Choudhary , D. M. Phase

Room-temperature ferrimagnetism was discovered for the anti-site-disordered perovskite Ca2MnOsO6 with Tc = 305 K. Ca2MnOsO6 crystallizes into an orthorhombic structure with a space group of Pnma, in which Mn and Os share the…

We perform a comparative magnetic study on two series of rare-earth (RE) based double perovskite iridates RE2BIrO6 (RE=Pr,Nd,Sm-Gd;B=Zn,Mg), which show Mott insulating state with tunable charge energy gap from ~330 meV to ~560 meV by…

Strongly Correlated Electrons · Physics 2020-06-19 Yuxia Gao , Zhaoming Tian , Longmeng Xu , Malik Ashtar , Zongtang Wan , Zhengcai Xia , Feng Yang , Songliu Yuan , Yuyan Han , Wei Tong

The double-perovskite A$_2$BB'O$_6$ with heavy transition metal ions on the ordered B' sites is an important family of compounds to study the interplay between electron correlation and spin-orbit coupling (SOC). Here we prepared…

Strongly Correlated Electrons · Physics 2020-07-01 Shang Gao , Daigorou Hirai , Hajime Sagayama , Hiroyuki Ohsumi , Zenji Hiroi , Taka-hisa Arima

The functional characteristics of double perovskites with unique ferromagnetic-insulator ground state have been controversial due to the unavoidable presence of anti-site disorders (ASDs). Here, we aim to investigate the origin of magnetic…

In the family of double perovskites, colossal magnetoresistance (CMR) has been so far observed only in half-metallic ferrimagnets such as the known case Sr$_2$FeMoO$_6$ where it has been assigned to the tunneling MR at grain boundaries due…

Strongly Correlated Electrons · Physics 2019-10-02 Lei Ding , Dmitry D. Khalyavin , Pascal Manuel , Joseph Blake , Fabio Orlandi , Wei Yi , Alexei A. Belik

Ferromagnetic insulating (FMI) double perovskite oxides (DPOs) $A_2BB'$O$_6$ with near-room-temperature Curie temperatures are promising candidates for ambient-temperature spintronics applications. To realize their potential, epitaxial…

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