R. Rajesh

11 Questions 28 Answers 0 Followers

Questions related from R. Rajesh

Unable to reduce chi square in Neutron diffraction data?

Dear Researchers, I am trying to refine the BiFeO3 neutron diffraction data using GSAS-II, how i am unable to reduced the chi square. In XRD it crystallizes in R3c phase with reduced chi square of...

19 October 2023 6,455 4 View

How to overcome the error occurred in RMC profile and pddffit2 in GSAS II?

Dear Professor, Currently, I am using GSAS II for Rietveld refinement analysis in Windows 8.1 OS. While I am working in ISODISTORT distortion modes, after the creation of file_child, the GM values...

26 July 2022 3,806 2 View

How to find the AFM/Para and Ferroelectric data's from M-H curve?

Respected researchers, I am attaching herewith an M_H curve. Here the sample may possess both FM and AFM/PM behaviours. In order to identify the contribution of both magnetic behaviours, I used...

21 September 2021 8,415 3 View

How to stimulate frequency dependent polarization curves?

we measure the polarization response against the electric field at lower frequencies for BiFeO3 samples (10,20,50, 100 Hz). we get a linear response. we would like to stimulate the...

02 July 2020 8,557 0 View

How to calculate electron density and nuclear density values using VESTA?

Can any one help me to calculate the electron density values using Dysnomia of pervoskite metal oxide (Eg: BiFeO3) if iam having output files such as *.cif, *.exp, etc.., Thanks in advance

25 March 2020 9,397 3 View

What is the difference between μB / f.u. and μB /Fe3+ ions ?

respected researchers, How to convert the Bohr magneton per formula unit in to Bohr magnetron per Fe3+ ion. for example if you take BiFeO3, From theortical calculation, if we take spin only...

02 July 2018 1,605 7 View

How to prove the net magetization is intrinsic ?

Respected researchers, how to prove the net magnetization is intrinsic from temperature dependent magnetization (2K - 380K) studies of divalent (Sr)doped bismuth ferrite when a field of 1000Oe is...

19 April 2017 1,742 3 View

Where can I find the CIF file of BiFeO3 in R-3m Phase?

Respected researcher, while examine the BiFeO3 X-ray pattern in Xpert Pro plus, my pattern well counterparts with R-3m phase (space group 166). for reitveld refinement, i am in need of CIF File in...

12 July 2016 6,577 11 View

Can someone help me to calculate Z/Zmax and M/M max?

Respected researchers, I am doing impedance studies in bulk samples. now I arrive impedance, admittance, electric modulus and relative permittivity from the datas measured. from Jonscher’s law ,...

25 November 2015 6,888 2 View

How can I calculate the bond length from FTIR results for bulk complex oxides?

For example, if we take the FTIR result of BiFeO3 powder sample, I get peaks at 449.80cm-1 & 593.14cm-1 which conforms the presence of O - Fe - O bending mode and Fe - O stretching mode ( Ref:...

09 October 2014 5,191 10 View

Can anyone assist with Reitveld output issues?

I am using GSAS II and GSAS I for reitveld refinement. How can I print the hkl values in ouput curves (pdf format) after refinement in GSAS II since the output curve doesn't contain information...

11 September 2014 8,059 5 View