Experimental Multiferroics & Diffraction Researcher
Resume:
CURRIECULAM VITAE
DR.SONU NAMDEO
** ******** ** **** ********* NY11777
Research Interest
Study of Multiferroic materials using diffraction techniques like synchrotron and neutron diffraction and spectroscopic studies by X-ray absorption and photo-electron spectroscopy. Also have hands on experience on Dielectric and superconducting materials. Salient features of Ph.D. work output:
Unambiguous spectroscopic experimental evidence of Fe
+4
state by X-ray Absorption
Near Edge Spectroscopic (XANES) measurements.
First experimental evidence of composition driven spin-reorientation transition by perturbed Fe-doping at Mn-site in h-YMnO3 by temperature and field dependent Neutron diffraction study.
First experimental evidence regarding the tunability of magneto-elasticity by non- magnetic Eu substitution at Y-site in h-YMnO3.
Research/Academics
Ph.D (Physics) 7
th
Feb. 2014
(Submitted): UGC-DAE Consortium for Scientific Research, Indore, India Thesis title : “Synthesis and characterization of novel perovskite multiferroics " Thesis Supervisor: Dr. A. M. Awasthi
M. Phil (Physics): Chaudhary Devi Lal University, Sirsa, Haryana, India 2007 Dissertation title : “X-ray diffraction and transmission electron microscopic studies of Calcium doped Strontium Titanates”
Dissertation Grade: A+
M.Sc.(Physics): Devi-Ahilya Vishwavidyalaya Indore,India 2003-2005 Dissertation title : “High temperature X-ray diffraction and Dielectric studies of microscopic studies of pure and Calcium doped Barium Titanates” 67.2%, First Division, Dissertation Grade: A+
B.Sc.(Instr.): Dr. H. S. Gaur University, Sagar, India. 1998-2001 63.8%, First Division.
Experimental Skills
Sample Preparation : Solid-state route, Sol-gel route. Lab based Techniques
1. Sample Preparation : Expertise in Preparation of phase pure multiferroic and dielectric materials through Solid State reaction method. Have an experience on making samples by Sol-Gel route.
2. Instrumentation work :
I. Hands on experience in making high temperature Tubular furnace upto 1200 0
C.
II. Fabrication of Low temperature dielectric set-up down to 10K. III. Fabrication of High Temperature Dielectric set-up, working up to 1000 0
C.
IV. Experience on handling Lakeshore and Eurotherm temperature controller, Superconducting Magnet power supply, Current and Voltage source meter and various features of electronic lab equipments.
3. Hands on Experience on Experimental Techniques
A) Lab Based Techniques
I. Expertise in performing X-ray diffraction using high resolution x-ray diffraction system of M/s Bruker make D8-Discover model & powder diffraction using 18 kW rotating anode Rigaku machine. II . Expertise in Reitveld refinement for Structural and Magnetic phase analysis of powder samples measured by Lab, Synchrotron and Neutron diffraction measurements, respectively. III. Expertise in Performing Dielectric measurements at Low and High temperature – using Alpha-A High Frequency Analyzer, NOVOCONTROL .
IV. Expertise in high temperature thermal measurements such as Differential Scanning Calorimetry using modulated Differential Scanning Calorimeter of TA instrument 2910 module. V. Hands on experience on performing thermal conductivity measurements, down to 10K on home- made setup.
VI. Experience on performing Specific Heat measurements by Relaxation method at Low temperature and high magnetic fields using M/s Quantum Design make PPMS system (2K - 300K & 14 Tesla). VII. Experience on magnetization measurements Low temperature and high magnetic fields using M/s Quantum Design make MPMS system (2K - 350K & 14 Tesla) & SQUID (2K-300K & 7 Tesla). VIII. Experience on P-E loop measurements on ferroelectric bulk samples using M/s Radiant make P- E loop tracer.
B) Synchrotron/Neutron based Techniques
I. Exposure to Synchrotron based techniques such as powder X-ray diffraction and X-ray absorption spectroscopic measurements in transmission and fluorescence geometry at BL-12, INDUS-2, RRCAT Indore.
II. Exposure to X-ray photoelectron spectroscopic measurements on PES beam line of UGC-DAE, CSR at INDUS-I, RRCAT, Indore.
III. Exposure to temperature and magnetic field dependent Neutron diffraction measurements of powder samples at UGC-DAE, CSR, Mumbai beam line at Dhruva Reactor, BARC, Trombay
(MUMBAI).
Data Analysis:
I. Expertise in Fitting and analysis of LAB XRD data using Rietveld and LeBail method using FullProf & PowderCell program.
II. Expertise in Fitting and analysis of SYNCHROTRON POWDER X-ray diffraction data using FullProf program.
III. Analysis of XANES data.
IV. Expertise in Fitting and analysis of NEUTRON POWDER DIFFRACTION data using FullProf program.
IV. Fitting and analysis of XPS data using XPS Peak Fit software. Computational Skills
Operating systems: Windows, DOS.
Software packages: Full Prof Suite, Powder Cell, Vesta, Origin, MS Office, Orient Express, LaTex, Graphics, Programming using C,C
++
and MATLAB.
Publications
1. Disorder driven spin-reorientation in multiferroic h-YMn1-xFexO3 Sonu Namdeo, S. D. Kaushik, V. Siriguri and A.M. Awasthi. Journal of Applied Physics 116, 024105 (2014).
2. Investigation of charge states and multiferroicity in Fe doped h-YMnO3. Sonu namdeo, A.K. Sinha, M.N. Singh and A.M. Awsathi. Journal of Applied Physics 113, 104101 (2013).
3. Correlated Magnetic and Electrical Orders in YMn1-xFexO3 Multiferroics. Sonu Namdeo and A.M. Awasthi, AIP Conf. Proc. 1313, 239 (2010). 4. Doping effect towards tuning of magneto-elasticity in Eu-doped h-YMnO3. Sonu namdeo, A.K. Sinha, M.N. Singh and A.M. Awsathi (Under Review). Conferences /Schools/ Symposia attended
1. “Conference on Neutron Scattering CNS14” held during 10th -12th Feb 2014 at Indian Institure of
Science Education and Research(IISER) Pune.
2. “Research Scholar Workshop on Physics of Materials” held during 23-24th Dec 2013 at UGC- DAE CSR Indore.
3. “Thematic workshop on Physics of Phase Transition” held during 24-25th Dec 2013 at UGC- DAE CSR Indore.
4. Discussion meeting on “Recent Development in Magnetic materials and Thin Films (RDMMTF- 2013)” held at UGC-DAE CSR Indore.
5. School on “Thin Film Magnetism”,held during March 14-16,2012 at UGC-DAE CSR, Indore held during March 14-18, 2011.
6. School on “Physics with Low Temperatures and High Magnetic Fields” to be held at UGC-DAE CSR, Indore held during March 14-18, 2011.
7. International Conference on “Physics of Emerging Functional materials (PEFM-2010)”, BARC
(2010).
8. Structural, Thermal and Dielectric Study of Biferroic YCrO3, DAE-SSPS (2009). 9. Awareness Workshop On “Low temperature and High Magnetic field facilities at UGC-DAE CSR Indore”, held during 6-7,2009.
7. School on “Neutron as probes of Condensed matter (NPCM-XIV)” BARC,Mumbai (2008). 8. Workshop on “Advanced Techniques for Material Characterization (ATMS-06)”, M. S. University, Varodara (2006).
Awards and Fellowship
1. 2nd prize in “Thesis Presentation competition” during “Research Scholar Workshop on Physics of Materials (Annual Day celebration)”.
2. Certificate from AIP on the Publication of Investigation of charge states and multiferroicity in Fe doped h-YMnO3”. (Selected in latest 25% download articles). 3. July 2006- Dec 2007 : Research Intern at National Physical Laboratory, New Delhi 4. Dec 2007 – Dec 2012 : Project Associate-II at UGC-DAE CSR Indore. 5. Dec 2012- 2013 : Project Fellow at UGC-DAE CSR Indore. Personal Details
Name : Ms. Sonu Namdeo
Date of Birth : 3rd July 1981
Sex : Female
Marital Status : Unmarried
Father's Name : Shri B. P. Namdeo
Permanent Address : 90,Behind bapu-bal Vidyalaya, Itwari hills Sagar (M.P.)-470002
India.
References
1. Dr. A. K. Sinha
Scientist Officer-G,
INDUS-2,
Raja Rammanna Centre for Advanced Technology,Indore. Ph No: 0091-731-***-**** (Office)
0091-810-***-**** (Mobile)
Email: ****@*****.***.** ; ************.******@*****.*** 2. Dr. V. Siruguri
Centre Director,
UGC-DAE CSR Mumbai Centre,
R-5 Shed,Bahbha Atomis Research centre,Trombay,Mumbai 400085 India Ph No: 0091-22-25594930, 25505402, 25505327
Email: ********@***.***.** ; *********@*****.***
3. Dr. V. Ganesan
Centre Director,
UGC-DAE Consortium for Scientific Research
Takshila Campus, DAVV
Indore(M.P.)-452001
Ph No: 0091-731-***-****,2472200,2308150,2762267,
0091- 989-***-****(Mobile)
Email: *********@***.***.**; ********@***.***.**
4. Dr. A. M. Awasthi
Scientist-G,
UGC-DAE CSR Indore
Ph No: 0091-731-***-****(Ext.162) (Office)
0091-982-***-**** (Mobile)
Email: *******@***.***.**; ************@*****.***
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