Evidence of Weak Ferromagnetism, Space Charge Polarization, and Metal to Insulator Transition in Dy-Doped CaMnO3

Bharamagoudar, Ravi; Angadi, V. Jagadeesha; Shivaraja, I.; Angadi, Basavaraj; Mondal, Rajib; Patil, Anil S.; Patil, S. F.; Pattar, Vinayak; Matteppanavar, Shidaling

doi:10.1007/s10948-020-05770-1

Cited by 7 publications

(2 citation statements)

References 41 publications

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“…It is worth noting that CaMnO3 is recognized as an antiferromagnetic insulator (AFMI) material, characterized by the presence of both fourand tri-valent manganese ions [39]. This manganite exhibits a complex magnetic behavior at low temperatures, transitioning from antiferromagnetic (G-type AFM) to paramagnetic ordering with a Neel temperature around 125 K and eventually revealing a weak ferromagnetic component below 10 K [40][41][42]. The strong G-type antiferromagnetic (AFM) order observed at 120-125 K in CaMnO3 is attributed to superexchange interactions between Mn 3+ and Mn 4+ ions.…”

Section: Magnetic Investigationsmentioning

confidence: 99%

Magnetic, Antiferroelectric-like Behavior and Resistance Switching Properties in BiFeO3-CaMnO3 Polycrystalline Thin Films

Lahmar,

Zidani,

Belhadi

et al. 2023

Materials

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The effect of ferromagnetic CaMnO3 (CMO) addition to structural, magnetic, dielectric, and ferroelectric properties of BiFeO3 is presented. X-ray diffraction and Raman investigation allowed the identification of a single pseudocubic perovskite structure. The magnetic measurement showed that the prepared films exhibit a ferromagnetic behavior at a low temperature with both coercive field and remnant magnetization increased with increasing CMO content. However, a deterioration of magnetization was observed at room temperature. Ferroelectric study revealed an antiferroelectric-like behavior with a pinched P–E hysteresis loop for 5% CMO doping BFO, resulting in low remnant polarization and double hysteresis loops. Whereas, high remnant polarization and coercive field with a likely square hysteresis loop are obtained for 10% CMO addition. Furthermore, a bipolar resistive switching behavior with a threshold voltage of about 1.8 V is observed for high doped film that can be linked to the ferroelectric polarization switching.

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Section: Magnetic Investigationsmentioning

confidence: 99%

Magnetic, Antiferroelectric-like Behavior and Resistance Switching Properties in BiFeO3-CaMnO3 Polycrystalline Thin Films

Lahmar,

Zidani,

Belhadi

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

Section: Magnetic Investigationsmentioning

confidence: 99%

Magnetic, Antiferroelectric Like Behavior, and Resistance Switching Properties in BiFeO<sub>3</sub>-CaMnO<sub>3</sub> Polycrystalline Thin Films

LAHMAR,

Zidani,

Belhadi

et al. 2023

Preprint

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The effect of ferromagnetic CaMnO3 (CMO) addition on structural, magnetic, dielectric, and ferroelec-tric properties of BiFeO3 are presented. X ray diffraction and Raman investigation allowed the identifi-cation of single pseudo cubic perovskite structure. The magnetic measurement showed that the pre-pared films exhibit a ferromagnetic behavior at low temperature with both coercive field and remnant magnetization increased with increasing CMO content. However, a deterioration of magnetization was observed at room temperature. Ferroelectric study revealed an antiferroelectric like behavior with a pinched P-E hysteresis loop for 5%CMO doping BFO resulting in low remnant polarization and double hysteresis loops. Whereas, high remnant polarization and coercive field with a likely square hysteresis loop are obtained for 10 % CMO addition. Furthermore, a bipolar resistive switching behavior with a threshold voltage of about 1.8V is observed for high doped film that can be linked to the ferroelectric polarization switching.

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Synthesis and study of transition metal(Co, Cu, and Ni) substituted ferrites for humidity sensor applications

Angadi¹,

Batoo

Hussain

et al. 2023

J Mater Sci: Mater Electron

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Evidence of Weak Ferromagnetism, Space Charge Polarization, and Metal to Insulator Transition in Dy-Doped CaMnO3

Cited by 7 publications

References 41 publications

Magnetic, Antiferroelectric-like Behavior and Resistance Switching Properties in BiFeO3-CaMnO3 Polycrystalline Thin Films

Magnetic, Antiferroelectric-like Behavior and Resistance Switching Properties in BiFeO3-CaMnO3 Polycrystalline Thin Films

Magnetic, Antiferroelectric Like Behavior, and Resistance Switching Properties in BiFeO<sub>3</sub>-CaMnO<sub>3</sub> Polycrystalline Thin Films

Synthesis and study of transition metal(Co, Cu, and Ni) substituted ferrites for humidity sensor applications

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