Multiple Dielectric Relaxations in CaMn<sub>2</sub>O<sub>4</sub> Polycrystalline Compound

نویسندگان

چکیده

The dielectric response of the CaMn 2 O 4 polycrystalline compound has been reported in this paper. orthorhombic room-temperature structure (space group Pbcm ) is confirmed by powder X-ray diffraction (XRD). temperature dependent magnetization M( T data reveal that antiferromagnetic ordering below N = 220 K. Further decreasing shows increasing trend canted spin structure. Dielectric anomalies are clearly observed at onset magnetic (∼220 K) and also (50 . Such type anomaly around long range order transition will correlate influence underlying with electric ordering.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Multiple Relaxations in Temporal Planning

CRIKEY is a planner that separates out the scheduling from the classical parts of temporal planning. This can be seen as a relaxation of the temporal information during the classical planning phase. Relaxations in planning are used to guide the search. However, the quality of the relaxation greatly affects the performance of the planner, and in some cases can lead the search into a dead end. Th...

متن کامل

Dielectric Relaxations and Intermolecular Interaction in Several Binary Nematic Mixtures of P-methoxybenzylidene - P'-n-butylaniline and Non-mesogenic Compound

Anisotropic dielectric relaxations in several binary nematic mixtures of MBBA and non-mesogenic compound oriented by magnetic field were measured in the frequency range of 300 Hz to 3 MHz. Viscosity measurements were also made in the isotropic state. Non-mesogenic compounds used were non-linear shaped molecules such as chloroform, m-xylene, and 1,3,5-trimethylbenzene, and nearly linear shaped m...

متن کامل

Dielectric study of local relaxations in dendritic macromolecules

The aim of this work is to characterize the dielectric properties of amorphous dendritic macromolecules as a function of architectural complexity. By combining thermostimulated currents and dynamic dielectric spectroscopy, the dielectric permittivity has been obtained as a function of temperature, in a very broad frequency range (10–10 Hz). Generations g = 0 to g = 2 were investigated. The mole...

متن کامل

Permittivity and Dielectric Relaxations in Liquid-Ammonia Solutions

Dielectric constant and loss in liquid-ammonia solutions of alkali halides have been measured in the frequency range 0.7 — 70 GHz. At least one relaxation process exists in this frequency range in addition to the relaxation of the solvent molecules. The additional relaxation is ascribed to the orientational polarisation of ion pairs. The concentration of the ion pairs, calculated with a special...

متن کامل

Dielectric relaxations in amorphous polymers with complex chain architectures

By combining thermostimulated current and dynamic dielectric spectroscopies, the dielectric properties characteristic of the molecular mobility can be described over a very broad frequency range. The study of dielectric relaxations of phosphorus-containing dendrimers in the sub-glass transition region, and of poly(n-alkyl methacrylates) at and above the glass transition region allows us to gain...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: ECS Journal of Solid State Science and Technology

سال: 2023

ISSN: ['2162-8769', '2162-8777']

DOI: https://doi.org/10.1149/2162-8777/acb6b2