نتایج جستجو برای: remnant magnetization

تعداد نتایج: 29052  

2014
Ram K. Gupta J. Candler D. Kumar Bipin K. Gupta Pawan K. Kahol

*Correspondence: Ram K. Gupta, Department of Chemistry, Pittsburg State University, 1701 South Broadway, Pittsburg, KS-66762, USA e-mail: [email protected] Epitaxial tin ferrite (SnFe2O4) thin films were grown using KrF excimer (248 nm) pulsed laser deposition technique under different growth conditions. Highly epitaxial thin films were obtained at growth temperature of 650°C. The quality a...

2017
Guo-Wei Zhou Xiao-Fen Guan Yu-Hao Bai Zhi-Yong Quan Feng-Xian Jiang Xiao-Hong Xu

We study the magnetic properties of an epitaxial growth bilayer composed of ferromagnetic La0.7Sr0.3MnO3 (LSMO) and paramagnetic LaNiO3 (LNO) on SrTiO3 (STO) substrates. We find that the stack order of the bilayer heterostructure plays a key role in the interfacial coupling strength, and the coupling at the LSMO(top)/LNO(bottom) interface is much stronger than that at the LNO(top)/LSMO(bottom)....

2007
DENNIS V. KENT

The possibility that the Avalon Platform, where the Avalonian lithotectonic belt is best developed, was involved in late Paleozoic displacement was tested by paleomagnetic study of red sandstones of the Upper Devonian Terrenceville Formation of eastern Newfoundland. Two magnetization directions were identified by thermal demagnetization analysis of 60 oriented samples from 10 sites: a high bloc...

2000
N. Kirova S. Brazovskii

The rich order parameter of Spin Density Waves allows for an unusual object of a complex topological nature: a half-integer dislocation combined with a semi-vortex of the staggered magnetization. It becomes energetically preferable to ordinary dislocation due to enhanced Coulomb interactions in the semiconducting regime. Generation of these objects changes e.g. the narrow band noise frequency. ...

In the present study, new multi-components spinel ferrite Zinc doped metallic ferrites are investigated. The synthesized compounds consisting of Zinc copper ferrite nanostructures were developed using the Co-precipitation technique. Powder X-ray diffraction pattern (XRD) confirms the formation of the spinel phase for all the samples. The lattice constant was studied through powder X-ray diffrac...

Journal: :iranian journal of medical physics 0
masoomeh fooladi m.sc. in medical physics, medical physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran nader riahi alam associate professor, medical physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran mohammad hossein harirchyan associate professor, neurology dept., tehran university of medical sciences, tehran, iran kavoos firuznia associate professor, radiology dept., tehran university of medical sciences, tehran, iran mohammad ali oghabian associate professor, medical physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran majid shakiba researcher, medical imaging research center, imam khomeini hospital, tehran university of medical sciences, tehran, iran

introduction: multiple sclerosis (ms) is a demyelinating disease of the central nervous system (cns), affecting mostly young people at a mean age of 30 years. magnetic resonance imaging (mri) is one of the most specific and sensitive methods in diagnosing and detecting the evolution of multiple sclerosis disease. but it does not have the ability to differentiate between distinct histopathologic...

Journal: :journal of dental materials and techniques 0
masoomeh afsa department of maxillofacial radiolgy, faculty of dentistry, persian gulf oral and dental disease research center, hormozgan university of medical sciences, bandar abbas, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی هرمزگان (hormozgan university of medical sciences) asma zangizade dentist, persian gulf oral and dental disease research center, hormozgan university of medical sciences, bandar abbas, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی هرمزگان (hormozgan university of medical sciences) ghader zargaran department of restorative dentistry, faculty of dentistry, persian gulf oral and dental disease research center, hormozgan university of medical sciences, bandar abbas, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی هرمزگان (hormozgan university of medical sciences)

objectives: in restorative dentistry, it is essential to estimate the amount of remnant tooth structure after caries removal to make the best treatment plan. the present study was aimed to determine whether there is a correlation between the real thickness of remnant dentin under carious lesion and the radiographical measurement from photostimulable phosphor plates (psps). methods: a whole numb...

Journal: :AIP Advances 2023

Bismuth ferrite (BiFeO3) nanocomposites were synthesized using a novel nano-agitator bead milling method followed by calcination. oxide and iron nanoparticles mixed in stoichiometric ratio milled for 3 h calcined at 650 °C air. X-ray diffraction with Rietveld refinement, scanning electron microscopy, transmission microscopy techniques used to elucidate the structure of BiFeO3. The particle diam...

Journal: :Physics of the Earth and Planetary Interiors 2021

Magnetization by core dynamo activity in large asteroids and planetesimals is suggested the remnant magnetization of many achondritic meteorites. However, conditions for a sustained such small bodies problematic several reasons. Such may not have energy budget or size to achieve sufficient dynamo. Moreover, given their low internal pressures, planetesimal cores likely freeze from top down, wher...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان - دانشکده فیزیک 1390

در این پایان نامه ترابرد همدوس وابسته به اسپین در نوار گرافینی دو لایه با لبه زیگزاگ به صورت عددی بررسی شده است. برای یافتن احتمال عبور وابسته به اسپین الکترون از روش تابع گرین استفاده کرده ایم. و علاوه براین برای محاسبه طیف انرزی نانو ریبون گرافین دو لایه با لبه زیگزاگ از روش بستگی قوی و در چارچوب تقریب همسایه اول انجام یافته است. ‎‎‎ ‎ ‎‎‎ ‎در بخش اول ترابرد همدوس وابسته به اسپین از نوا...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید