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Structural, Magnetic, and Ferroelectric Properties of Zr-Doped Y 1-x Zr x CrO 3 Bulk Polycrystalline System
Journal of Superconductivity and Novel Magnetism ( IF 1.6 ) Pub Date : 2020-04-28 , DOI: 10.1007/s10948-020-05496-0
S. Taran , Bhaskar Biswas , H. D. Yang

A detailed structural, magnetic, and ferroelectric property of bulk polycrystalline Y1-xZrxCrO3 (0 ≤ x ≤ 0.2) has been made. All the samples in the present series were made using the standard solid-state sintering technique. X-ray diffraction (XRD) data reveals that the single-phase samples can be prepared for Zr-concentration up to x = 0.1, and a systematic decrease of the lattice parameters can be observed with the increase of Zr doping at the Y-site in the present YCrO3 system. All the samples show paramagnetic to antiferromagnetic transition around 140 K (TN) as revealed from the temperature-dependent magnetization (M) data, and a small increase in the value of saturation magnetization (Msat) can be seen with successive Zr-doping in the system. Interestingly, unlike YCrO3, the M-T data measured under the zero-field cooled (ZFC) condition shows negative M value for both the Zr-doped samples in the present series below TN. A notable enhancement of both critical field (HC) and remnant magnetization (Mr) is observed for the Zr-doped samples compared with the pristine YCrO3 sample measured under similar conditions. Polarization-electric field (P-E) hysteresis behavior of undoped and Zr-doped samples is measured at low temperature to reduce leakage current contribution, show an enhancement of remnant polarization (Pr) with successive Zr doping within YCrO3, indicating a better bifferoic nature in Zr-doped sample in the present study.

中文翻译:

Zr掺杂Y 1-x Zr x CrO 3本体多晶体系的结构,磁性和铁电性质

详细的散装的多晶结构,磁性,和铁电性能ÿ 1- X的Zr X的CrO 3(0≤  X  ≤0.2)已经取得进展。本系列中的所有样品均使用标准固态烧结技术制成。X射线衍射(XRD)数据表明,可以制备Zr浓度高达x  = 0.1的单相样品,并且随着Y位置Zr掺杂的增加,可以观察到晶格参数的系统性降低在目前的YCrO 3系统中。所有样品在140 K(T N)附近均表现出顺磁至反铁磁转变,这与温度相关的磁化强度(M)数据,以及在系统中连续进行Zr掺杂后,可以看到饱和磁化强度(M sat)的小幅增加。有趣的是,与YCrO 3不同,在零场冷却(ZFC)条件下测得的MT数据在T N以下显示了本系列中两个掺Zr样品的负M值。与原始的YCrO 3相比,掺Zr的样品的临界场(H C)和剩余磁化强度(M r)都有显着提高。样品在类似条件下测量。在低温下测量未掺杂样品和Zr掺杂样品的极化电场(PE)磁滞行为,以减少泄漏电流的影响,显示出残余极化(P r)的增强,YCrO 3内连续进行Zr掺杂,表明具有更好的二流性质本研究中掺杂Zr的样品
更新日期:2020-04-28
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