Pressure-induced valence changes of cerium in some cerium-based compounds

نویسندگان

چکیده

In the present work, we investigate how pressure affects valence change of cerium in cerium-based compounds CeX (X= O, S, Te, P, As, Sb, and Bi). The at a certain high is estimated by comparing experimentally observed unit cell volume calculated stable trivalent ion compound. with employing Birch equation state. It found that Ce significantly influenced both applied as well chemical environment around ion. J. Bangladesh Acad. Sci. 46(2); 147-154: December 2022

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

Nuclear orientation experiments on cerium intermetallic compounds

2014 Nuclear orientation experiments on In3Ce, Pb3Ce, Sn3Ce show that the first compound is well ordered, that Sn3Ce is a Kondo lattice and that further experiments must be performed in order to confirm the Kondo state of Pb3Ce. A simple interpretation is proposed to explain the behaviour of these abnormal compounds. LE JOURNAL DE PHYSIQUE LETTRES TOME 39, 1 er MARS 1978,

متن کامل

Thermodynamics of volume collapse transitions in cerium and related compounds

We present a non-linear elastic model of a coherent transition with discontinuous volume change in an isotropic solid. The model reproduces the anomalous thermodynamics typical of coherent equilibrium including intrinsic hysteresis (for a pressure driven experiment) and a negative bulk modulus. The novelty of the model is that the statistical mechanics solution can be easily worked out. We find...

متن کامل

Evaluation and X-Ray Induced Modification of the Cerium Oxidation State in Cerium Calixarene Complexes

The cerium oxidation state in novel calixarene-supported cerium(IV) β-diketonate complexes [pt Bu-calix[4](OMe)2(O)2]Ce(acac)2 (1) and [pt Bu-calix[4](OMe)2(O)2]Ce(hfac)2 (2), which are a new class of potential precursors for homogeneous oxidative transformations, has been determined using X-ray photoelectron spectroscopy (XPS). Cerium oxidation states between 3.6 and 3.65 were detected, distin...

متن کامل

Spin Glass and ferromagnetism in disordered Cerium compounds

The competition between spin glass, ferromagnetism and Kondo effect is analysed here in a Kondo lattice model with an inter-site random coupling Jij between the localized magnetic moments given by a generalization of the Mattis model [15] which represents an interpolation between ferromagnetism and a highly disordered spin glass. Functional integral techniques with Grassmann fields have been us...

متن کامل

High Pressure X-~Ray Absorption Spectroscopy Studies of Heavy-~Fermion Cerium and Uranium Compounds

................................................................................................................................... iii Table of

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: Journal of Bangladesh Academy of Sciences

سال: 2022

ISSN: ['0378-8121', '2224-7270']

DOI: https://doi.org/10.3329/jbas.v46i2.60172