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Chinese Physics Letters 2013年第4期30卷 177-180页

作者： A.Manzar G.murtaza R.Khenata S.Muhammad Hayatullah Department of Physics Hazara University MansehraKPKPakistan Materials Modeling Lab Department of PhysicsIslamia College UniversityPeshawarPakistan LPQ3M Laboratory Institute of Science and TechnologyUniversity of MascaraAlgeria Department of Physics and Astronomy King Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia

The modified Becke–Johnson exchange potential approximation is applied to predict the band structure,optical parameters and electron density of SnMg_(2)O_(4)and SnZn_(2)O_(4).The local density approximation,generalized gradient approximation(GGA),EV-GGA significantly underestimate the direct band gap values compared to modified Becke–Johnson *** band gap dependent optical parameters such as dielectric constant,index of refraction,reflectivity,and optical conductivity are calculated and analyzed.A prominent feature of cation replacement is observed and analyzed for these studied *** replacement of the cation Mg by Zn leads to a significant reduction in the value of band gap and consequently affects its dependant optical *** variation is of crucial importance for device fabrication in different regions of the spectrum.

关键词： approximation (4) Modified

Ho3＋掺杂对ZnO薄膜的微观结构和磁性的影响

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Chinese Journal of Chemical Physics 2011年第3期24卷 353-357,I0004页

作者： ghulam murtaza Rai Muhamlnad Azhar Iqbal Yongbingxu Iain Gordon Will wenzhang 巴基斯坦旁遮普大学物理系拉合尔54590 英国约克大学电子部自旋电子学实验室约克YO105DD

研究Ho3＋掺杂对氧化锌半导体材料的微结构和磁学性质影响．利用热蒸发技术制备了一系列沉积件Si（100）衬底的Zn1-xHoxO（x=00、0．04、005）薄膜．x射线光谱、表面形貌以及磁性的实验结果表明，Ho＋掺杂对ZnO滞膜材料的性能影响很大x... 详细信息

研究Ho3＋掺杂对氧化锌半导体材料的微结构和磁学性质影响．利用热蒸发技术制备了一系列沉积件Si（100）衬底的Zn1-xHoxO（x=00、0．04、005）薄膜．x射线光谱、表面形貌以及磁性的实验结果表明，Ho＋掺杂对ZnO滞膜材料的性能影响很大x射线衍射图显示峰位出现高角度转变并且趋向于（101）取向，在ZnO晶格显示Ho＋置换．扫描电子硅微镜和能谱仪对薄膜的农面形貌以及化学讲量分析表明，晶粒尺寸随着Ho＋的增加而降低．Zn0.9Ho0.05O薄膜的室温铁磁性测定结果表明，铁磁性可能是山于Ho3＋替代氧化锌晶格Zn2＋造成的．

关键词：稀磁半导体结构分析扫描电镜磁性

Electronic Band Profile and Optical Response of Spinel MgIn_(2)O_(4)through Modified Becke-Johnson Potential

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Chinese Physics Letters 2013年第6期30卷 190-193页

We employ the first-principles technique based on the modified Becke–Johnson(BJ)exchange potential for the prediction of the electronic band structure,optical properties,and electron density of the cubic MgIn_(2)O_(4)spinel *** is found that the calculated band gap value with the modified BJ approximation is significantly improved over the results based on the generalized gradient approximation and the local density approximation in comparison to the experimental *** band gap dependent optical parameters such as the dielectric constant,refractive index,reflectivity,optical conductivity,and electron density are *** optical response suggests that MgIn_(2)O_(4)is an applicant material in optoelectronic devices in various parts of the energy spectrum like MgAl_(2)O_(4)and MgGa_(2)O_(4).

关键词： approximation Modified reflectivity

The effect of replacing pnictogen elements on the physical properties of SrMg_2X_2(X=N,P,As,Sb,Bi) Zintl compounds

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Chinese Physics B 2018年第4期27卷 369-375页

作者： G murtaza Abdul Ahad Khan M Yaseen A Laref Naeem Ullah Inayat ur Rahman Materials Modelling Labortary Department of PhysicsIslamia College University Department of Physics University of the Peshawar Department of Physics University of AgricultureFaisalabad Department of Physics and Astronomy College of ScienceKing Saud University Department of Physics City University of Hong Kong

The effect of replacing the anion from N to Bi down the group in the periodic table is investigated on SrMg2X2（X = N,P,As,Sb,Bi）.A full potential linearized augmented plane wave plus local orbitals method is used along with different exchange–correlation potentials to obtain the lattice constants,phonons,electronic,and optical properties of the Sr Mg2X2（X = N,P,As,Sb,Bi） Zintl compounds.A good agreement is achieved and our calculations are validated by previous experimental and theoretical *** compounds have shown stable dynamical behavior with gamma centered longitudinal response having no imaginary *** band structures reveal the semiconducting nature of the *** Pnictogen（X）-p state contributed mainly in the valence band and the Sr-d state forms the conduction of the *** charge transfer and low overlapping of the atomic densities indicates the preferable ionic bonding character of these *** the optical properties,real and imaginary parts of dielectric function,complex refractive index,birefringence,reflectivity,and optical conductivity are *** compounds can be utilized in the optical and optoelectronic devices.

关键词： Zintl compounds band structure optical response

Origin of Ferromagnetism in Al and Ni Co-doped ZnO Based DMS Materials

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Chinese Physics Letters 2012年第10期29卷 155-157页

作者： murtaza Saleem Saadat A.Siddiqi Shahid M.Ramay Shahid Atiq Shahzad Naseem Centre for Solid State Physics University of the PunjabQuaid-e-Azam CampusLahore 54590Pakistan 2Interdisciplinary Research Centre in Biomedical MaterialsCOMSATS Institute of Information TechnologyDefence RoadOff Raiwind RoadLahorePakistan 3Department of Chemical EngineeringCollege of EngineeringKing Saud UniversityP.O.Box 800Riyadh 11421Saudi Arabia

Zn0.95Ni0.05O and Zn0.90Ni0.05Al0.05O compositions of nanocrystallites are synthesised using the well recognised auto-combustion *** x-ray diffraction patterns demonstrate the phase pure characteristic wurtzite-type crystal structure with space group P63mc in both the *** elemental incorporation of Ni and Al contents into the ZnO structure is confirmed by energy dispersive x-ray *** micrographs of scanning electron microscopy show an approximate ordered *** electrical resistivity is observed to decrease with the rising temperature,depicting the characteristic semiconductor behaviour of the *** lower values of resistivity and ferromagnetic interactions in the Al-doped sample correspond to an increase of carrier's *** is observed that the carrier mediated mechanism is mainly responsible for ferromagnetism in ZnO-based diluted magnetic semiconductors.

关键词： resistivity diluted Origin

Correlation between Electrodiagnostic Study and Magnetic Resonance Imaging in Lumbar Radiculopathy Patients in a Tertiary Care Hospital

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Case Reports in Clinical Medicine 2023年第10期12卷 363-370页

作者： Farhan murtaza Samana Haider Amna Amin Aroosa Zahid Atiq Ur Rehman Radiology and Neurophysiology Department Shifa International Hospital Islamabad Pakistan

Background: Involvement of lumbar spinal nerve root, revealed as pain, numbness or weakness in the lower limbs. Typically caused by the compression of nerve at the spine level. Objective: The purpose of the study was to examine the patients with clinically presumed lumbar radiculopathy and find the correlation between their electrodiagnostic study and magnetic resonance imaging. Setting, duration and study type: Retrospective cross-sectional study of one year (January 2019 - February 2020) in Shifa International Hospital Islamabad. Methods: A total of 96 patients with clinically suspected lumbar radiculopathy were included. Chi-square test, international business machines (IBM) SPSS rendition 21.0 was applied on the clinical information, electrodiagnostic study and MRI were coordinated and affectability and particularity were judged. Selected patients were undergone both electrodiagnostic study and magnetic imaging resonance in the selected 1-year span. The study investigated correlation between both diagnostic tools in lumbar radiculopathy patients. Expected outcomes: Anatomical specificity in seen through magnetic resonance imaging while physiological through electrodiagnostic study, which may not correlate in the evaluation of lumbar radiculopathy.

关键词： Electrodiagnostic Radiculopathy Myotome Atrophy Spondylolisthesis Spinal Ligament Hypertrophy

The Present Scenario, Challenges, and Future Anticipation of Traditional Mongolian Medicine in China

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World Journal of Traditional Chinese Medicine 2019年第4期5卷 187-192页

作者： Hai-Ying Tong Shao-Qian Zhang ghulam murtaza Hui-Hui Zhao Xian-Ju Huang Hu-Rilebagen Wu-Lanqiqige Wu-Ye Bao Wu-Jisiguleng Wu-Yunsiriguleng Lu-Yao Chen Department of Mongolian Medicine School of Traditional Chinese MedicineBeijing University of Chinese MedicineBeijing Department of Pakistan Traditional Medicine COMSATS University IslamabadLahorePakistan Department of Medicine and Pharmacy College of PharmacySouth-Central University for NationaitiesWuhan Department of Mongolian Medicine School of Mongolian MedicalInner Mongolia Medicall University Department of Brain Disease Inner Mongolia Intermational Mongolian Hospital Psychosomatic Medical Center Inner Mongolia International Mongolian HospitalHohhotHeaith Management Center Affiliated Hospital of inner Mongolia University for the NationalitiesTongliaoChina

The objective was to study the present scenario,challenges,and future anticipation of traditional Mongolian medicine(TMM)in *** literature was retrieved using various sources of information such as meetings with TMM experts,research and review articles,national health databases,and government websites and authoritative *** care using TMM,TMM education and research,and the pharmaceutical industry of TMM has been improved by implementing TMM growth *** has been extensively used for health care in Mongolia and in various regions of China including *** national education system of China contains a stream of TMM *** is a yearly increase in research productivity in the field of TMM due to extensive research funding by the *** rapidly growing pharmaceutical industry of TMM has provided more availability of TMM to more *** literature search revealed good preservation and development of TMM in China,urging the need to take steps for the promotion of its spread and development in China and worldwide.

关键词： Health care pharmaceutical industry research productivity traditional Mongolian medicine

Electronic and Optical Properties of Spinel GeMg2O4 and GeCd2O4

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Chinese Physics Letters 2013年第12期30卷 134-138页

Oxide spinels have potential applications in optoelectronics and optics *** this work the electronic band structure and optical properties of GeMg2O4 and GeCd2O4 are calculated by first principles technique based on the new potential approximation known as the modified Becke-Johnson exchange potential approximation(mBJ).The local density and generalized gradient approximations significantly underestimate the direct band gap values compared to the *** band gap dependent optical parameters such as dielectric constant,refractive index,reflectivity and optical conductivity are calculated and *** replacement of the cation is observed and analyzed for the compounds studied and a prominent change is *** replacement of the cation Mg by Cd reduces the band gap and its dependent optical *** device fabrication in different regions of the spectrum this variation is strongly recommended.

关键词： approximation potential reflectivity

Glow Discharge Plasma Nitriding of AISI 304 Stainless Steel

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Plasma Science and Technology 2007年第4期9卷 463-468页

作者： A.QAYYUM M.A.NAVEED S.ZEB G.murtaza M.ZAKAULLAH National Tokamak Fusion Program IslamabadPakistan Department of Physics Quaid-i-Azam University45320 IslamabadPakistan Salam Chair in Physics Government College University54000 LahorePakistan

Glow discharge plasma nitriding of AISI 304 austenitic stainless steel has been carried out for different processing time under optimum discharge conditions established by spectroscopic analysis. The treated samples were analysed by X-ray diffraction （XRD） to explore the changes induced in the crystallographic structure. The XRD pattern confirmed the formation of an expanded austenite phase （TN） owing to incorporation of nitrogen as an interstitial solid solution in the iron lattice. A Vickers microhardness tester was used to evaluate the surface hardness as a function of indentation depth （μm）. The results showed clear evidence of surface changes with substantial increase in surface hardness.

关键词： optical diagnostics plasma nitriding austenitic stainless steel

Structural and Optoelectronic Properties of Cubic CsPbF3 for Novel Applications

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Chinese Physics Letters 2011年第11期28卷 232-235页

作者： G.murtaza Iftikhar Ahmad M.Maqbool H.A.Rahnamaye Aliabad A.Afaq Materials Modeling Laboratory Department of PhysicsHazara UniversityMansehraPakistan Department of Physics University of MalakandChakdaraPakistan Department of Physics and Astronomy Ball State UniversityIndianaUSA Department of Physics Sabzevar Tarbiat Moallem UniversitySabzevarIran Center of Excellence in Solid State Physics Qua-e-Azam CampusLahorePakistan

Chemical bonding as well as structural,electronic and optical properties of CsPbF3 are calculated using the highly accurate full potential linearized augmented plane-wave method within the framework of density functional theory(DFT).The calculated lattice constant is found to be in good agreement with the experimental *** electron density plots reveal strong ionic bonding in Cs-F and strong covalent bonding in *** calculations show that the material is a direct and wide bandgap semiconductor with a fundamental gap at the R-symmetry *** properties such as the real and imaginary parts of the dielectric function,refractive index,extinction coefficient,reflectivity,optical conductivity and absorption coefficient are also *** on the calculated wide and direct bandgap,as well as other optical properties of the compound,it is predicted that CsPbF_(3) is suitable for optoelectronic devices and anti-reflecting coatings.

关键词： bonding coefficient imaginary