Evolution of structural and magnetic properties of Co-Fe based metallic glass thin films with thermal annealing

G. Pookat; H. Thomas; S. Thomas; S. H. Al-Harthi; L. Raghavan; I. A. Al-Omari; D. Sakthikumar; R. V. Ramanujan; M. R. Anantharaman

doi:10.1016/j.surfcoat.2013.09.055

Evolution of structural and magnetic properties of Co-Fe based metallic glass thin films with thermal annealing

G. Pookat, H. Thomas, S. Thomas, S. H. Al-Harthi, L. Raghavan, I. A. Al-Omari, D. Sakthikumar, R. V. Ramanujan, M. R. Anantharaman^*

^*المؤلف المقابل لهذا العمل

Physics

نتاج البحث: المساهمة في مجلة › Article › مراجعة النظراء

16 اقتباسات (Scopus)

ملخص

Ultra thin films based on CoFe were prepared from a composite target employing thermal evaporation. The microstructure of the films was modified by thermal annealing. The relationship between microstructure and magnetic properties of the films was investigated using techniques like glancing angle X-ray diffraction (GXRD), transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM). The GXRD and TEM investigations showed an onset of crystallization of CoFe at around 373. K. The magnetic softness of the films improved with thermal annealing but at higher annealing temperature it is found to be deteriorating. Annealing induced modification of surface morphology of the alloy thin films was probed by atomic force microscopy (AFM). Surface smoothening was observed with thermal annealing and the observed magnetic properties correlate well with surface modifications induced by thermal annealing.

اللغة الأصلية	English
الصفحات (من إلى)	246-251
عدد الصفحات	6
دورية	Surface and Coatings Technology
مستوى الصوت	236
المعرِّفات الرقمية للأشياء	https://doi.org/10.1016/j.surfcoat.2013.09.055
حالة النشر	Published - ديسمبر 15 2013

ASJC Scopus subject areas

???subjectarea.asjc.1600.1600???
???subjectarea.asjc.3100.3104???
???subjectarea.asjc.3100.3110???
???subjectarea.asjc.2500.2508???
???subjectarea.asjc.2500.2505???

الوصول إلى المستند

10.1016/j.surfcoat.2013.09.055

الملفات والروابط الأخرى

قم بذكر هذا

@article{ce37e56a3a0f4f79aea1929b29632876,

title = "Evolution of structural and magnetic properties of Co-Fe based metallic glass thin films with thermal annealing",

abstract = "Ultra thin films based on CoFe were prepared from a composite target employing thermal evaporation. The microstructure of the films was modified by thermal annealing. The relationship between microstructure and magnetic properties of the films was investigated using techniques like glancing angle X-ray diffraction (GXRD), transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM). The GXRD and TEM investigations showed an onset of crystallization of CoFe at around 373. K. The magnetic softness of the films improved with thermal annealing but at higher annealing temperature it is found to be deteriorating. Annealing induced modification of surface morphology of the alloy thin films was probed by atomic force microscopy (AFM). Surface smoothening was observed with thermal annealing and the observed magnetic properties correlate well with surface modifications induced by thermal annealing.",

keywords = "CoFe based thin films, Nanocrystallization, Surface smoothening, Thermal annealing",

author = "G. Pookat and H. Thomas and S. Thomas and Al-Harthi, {S. H.} and L. Raghavan and Al-Omari, {I. A.} and D. Sakthikumar and Ramanujan, {R. V.} and Anantharaman, {M. R.}",

note = "Funding Information: GP acknowledges University Grants Commission (UGC), India for providing financial assistance in the form of RFSMS fellowship (No. F4-3/2006(BSR)/8-3/2007(BSR) ). HT acknowledges UGC FDP for providing financial assistance. Dr. I. A. Al–Omari would like to thank Sultan Qaboos University for the support under the grant number IG/SCI/PHYS/12/02 . LR & MRA are thankful to Inter University Accelerator Centre (IUAC), New Delhi for providing financial assistance in the form of UFUP project. MRA acknowledges Department of Science and Technology (DST)—Nanomission (No. SR/NM/NS-120/2010 (G) ) and DST-DAAD ( INT/FRG/DAAD/P-207/2011 ) for providing necessary facilities and financial assistance.",

year = "2013",

month = dec,

day = "15",

doi = "10.1016/j.surfcoat.2013.09.055",

language = "English",

volume = "236",

pages = "246--251",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier",

}

TY - JOUR

T1 - Evolution of structural and magnetic properties of Co-Fe based metallic glass thin films with thermal annealing

AU - Pookat, G.

AU - Thomas, H.

AU - Thomas, S.

AU - Al-Harthi, S. H.

AU - Raghavan, L.

AU - Al-Omari, I. A.

AU - Sakthikumar, D.

AU - Ramanujan, R. V.

AU - Anantharaman, M. R.

N1 - Funding Information: GP acknowledges University Grants Commission (UGC), India for providing financial assistance in the form of RFSMS fellowship (No. F4-3/2006(BSR)/8-3/2007(BSR) ). HT acknowledges UGC FDP for providing financial assistance. Dr. I. A. Al–Omari would like to thank Sultan Qaboos University for the support under the grant number IG/SCI/PHYS/12/02 . LR & MRA are thankful to Inter University Accelerator Centre (IUAC), New Delhi for providing financial assistance in the form of UFUP project. MRA acknowledges Department of Science and Technology (DST)—Nanomission (No. SR/NM/NS-120/2010 (G) ) and DST-DAAD ( INT/FRG/DAAD/P-207/2011 ) for providing necessary facilities and financial assistance.

PY - 2013/12/15

Y1 - 2013/12/15

N2 - Ultra thin films based on CoFe were prepared from a composite target employing thermal evaporation. The microstructure of the films was modified by thermal annealing. The relationship between microstructure and magnetic properties of the films was investigated using techniques like glancing angle X-ray diffraction (GXRD), transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM). The GXRD and TEM investigations showed an onset of crystallization of CoFe at around 373. K. The magnetic softness of the films improved with thermal annealing but at higher annealing temperature it is found to be deteriorating. Annealing induced modification of surface morphology of the alloy thin films was probed by atomic force microscopy (AFM). Surface smoothening was observed with thermal annealing and the observed magnetic properties correlate well with surface modifications induced by thermal annealing.

AB - Ultra thin films based on CoFe were prepared from a composite target employing thermal evaporation. The microstructure of the films was modified by thermal annealing. The relationship between microstructure and magnetic properties of the films was investigated using techniques like glancing angle X-ray diffraction (GXRD), transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM). The GXRD and TEM investigations showed an onset of crystallization of CoFe at around 373. K. The magnetic softness of the films improved with thermal annealing but at higher annealing temperature it is found to be deteriorating. Annealing induced modification of surface morphology of the alloy thin films was probed by atomic force microscopy (AFM). Surface smoothening was observed with thermal annealing and the observed magnetic properties correlate well with surface modifications induced by thermal annealing.

KW - CoFe based thin films

KW - Nanocrystallization

KW - Surface smoothening

KW - Thermal annealing

UR - http://www.scopus.com/inward/record.url?scp=84888825898&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84888825898&partnerID=8YFLogxK

U2 - 10.1016/j.surfcoat.2013.09.055

DO - 10.1016/j.surfcoat.2013.09.055

M3 - Article

AN - SCOPUS:84888825898

SN - 0257-8972

VL - 236

SP - 246

EP - 251

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Evolution of structural and magnetic properties of Co-Fe based metallic glass thin films with thermal annealing

ملخص

ASJC Scopus subject areas

الوصول إلى المستند

الملفات والروابط الأخرى

بصمة

قم بذكر هذا