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A Theoretical Study of Influence of Lattice Structure onMulti Pole of f-electron Systems 晶格结构对f电子系统多极影响的理论研究
Journal of Pure Applied and Industrial Physics Pub Date : 2018-10-04 DOI: 10.29055/JPAIP/327
Ravi Kumar, U. Singh, L. K. Mishra
{"title":"A Theoretical Study of Influence of Lattice Structure on\u0000Multi Pole of f-electron Systems","authors":"Ravi Kumar, U. Singh, L. K. Mishra","doi":"10.29055/JPAIP/327","DOIUrl":"https://doi.org/10.29055/JPAIP/327","url":null,"abstract":"Using the theoretical formalism of of K Kubo, et al. and R yamatura et al.,, we have theoretically studied the influence of lattice structure on multi pole interaction in f-electron systems. We have applied second order perturbation theory with respect to intersite hopping. The derivation of multi pole interactions was performed for different lattice interactions. One obtains quadrupole interaction for SC lattice, octupole interaction for bcc lattice and for fcc lattice both interactions were observed. It appears that lattice structure plays essential role in the multi pole ordering. The general tendencies of the multi pole interactions were discussed and the results were compared with those of the 8 quaret systems of f 1 ions. We have also mentioned the effective f-f hopping. The important point is that the symmetry of forbitals restrict the form of hopping for the both cases of lattice structure. The work will be quite helpful for those who will be interested to understand the influence of lattice structure and also to know the multi pole interactions.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115210472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Theoretical Evaluation of Temperature DependentMagneto-resistance of High TC Superconductors 高温超导体磁电阻随温度变化的理论研究
Journal of Pure Applied and Industrial Physics Pub Date : 2018-10-04 DOI: 10.29055/jpaip/329
Shanker Kumar, S. Prasad, L. K. Mishra
{"title":"A Theoretical Evaluation of Temperature Dependent\u0000Magneto-resistance of High TC Superconductors","authors":"Shanker Kumar, S. Prasad, L. K. Mishra","doi":"10.29055/jpaip/329","DOIUrl":"https://doi.org/10.29055/jpaip/329","url":null,"abstract":"Using the theoretical formalism of S Hikami et al. and Andrew Magnum, we have theoretically evaluated magneto-resistance in high TC Superconductors. We have evaluated temperature dependent magneto resistance of two superconductors YBCO and LSCO with different concentration n. Our theoretical calculation is performed with the help of two approximations FLEX+CVC and RTA. Our theoretical obtained results indicate that temperature dependent magneto resistance increase and decrease as a function of temperature and concentration n. In both superconductors YBCO and LSCO, the modified Kohler’s rule is well reproduced by FLEX+CVC method.The coefficient 2 0 ( / )cot H takes almost constant value for a wide range of temperature. Our obtained theoretical results show that RTA obtained by the RTA exhibits a strong temperature dependence which is in agreement with Konani’s work.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124388614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Theoretical Study of Phase Separation in StronglyCorrelated Electron Systems with Wide and Narrow Bands 宽窄带强相关电子系统相分离的理论研究
Journal of Pure Applied and Industrial Physics Pub Date : 2018-10-04 DOI: 10.29055/JPAIP/328
Sunil Kumar, D. Prasad, L. K. Mishra
{"title":"A Theoretical Study of Phase Separation in Strongly\u0000Correlated Electron Systems with Wide and Narrow Bands","authors":"Sunil Kumar, D. Prasad, L. K. Mishra","doi":"10.29055/JPAIP/328","DOIUrl":"https://doi.org/10.29055/JPAIP/328","url":null,"abstract":"Using the theoretical formalism of A. O Sboychakov6 and R. Schaffer et al.7, we have theoretically studied the phase separation in strongly correlated electron systems with wide and narrow bands. We observed the following facts; (1) In this paper, the spinless Falicov-Kimball model on the simple cubic lattice is analyzed. The analysis is performed with the help of Hubbard-I and dynamical mean field (DMFT) approximations. We have obtained the Matsubara and real frequency itinerant Green’s function, the evolution of the system with doping and the range of phase separation is evaluated in thesr two approximations. (2) We observed that at large values of the on-site Coulomb repulsion in both approximations gives similar results. It was observed that both approximations coincide in the narrow band limit W—0. (3) It was also seen that the system remains unstable towards the phase separation even at finite band width. (4) The analysis also reveals the fact that the phase separation is the inherent feature of Hubbard like models with wide and narrow bands.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115702317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Theoretical Study of Super Fluidity in Spin-orbit Coupled Bose-Einstein Condensate 自旋轨道耦合玻色-爱因斯坦凝聚体超流动性的理论研究
Journal of Pure Applied and Industrial Physics Pub Date : 2018-10-04 DOI: 10.29055/jpaip/324
A. Alam, Santashraya Prasad, L. K. Mishra
{"title":"A Theoretical Study of Super Fluidity in Spin-orbit Coupled Bose-Einstein Condensate","authors":"A. Alam, Santashraya Prasad, L. K. Mishra","doi":"10.29055/jpaip/324","DOIUrl":"https://doi.org/10.29055/jpaip/324","url":null,"abstract":"Using the theoretical formalism of Q Zhu et al. [EPL, 109, 50003 92012) and Y. J. Lin et al.[Nature 471, 83 (2011)], we have theoretically studied spin-orbit coupling and super fluidity in SOC coupled Bose Einstein condensate. In this study, we observed the following facts: Spin-orbit coupling plays an essential role in the super fluidity of SOC coupled Bose Einstein condensate. Our theoretical analysis of the Bogoliubov excitation shows that it has two branches (a) one is gapless and phonon like at long wavelength (b) typically gapped. The excitation implies super fluidity which contains distinct new features: (i) Galilean invariance is absent (ii) One cannot define critical velocity of super fluidity independent of the reference frame. The super fluidity depends upon two factors (a) the speed of BEC exceeds a critical value (b) cross-helicity. The cross helicity is defined as the cross product of the spin and kinetic momentum of the BEC.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116665004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Theoretical Study of Comparison of Graphene, Superconductors and Metals as Conductors forMeta Materials and Plasmonics 石墨烯、超导体和金属作为元材料和等离子体导体比较的理论研究
Journal of Pure Applied and Industrial Physics Pub Date : 2018-10-04 DOI: 10.29055/jpaip/320
S. Paul, S. Srivastava, L. K. Mishra
{"title":"A Theoretical Study of Comparison of Graphene, Superconductors and Metals as Conductors for\u0000Meta Materials and Plasmonics","authors":"S. Paul, S. Srivastava, L. K. Mishra","doi":"10.29055/jpaip/320","DOIUrl":"https://doi.org/10.29055/jpaip/320","url":null,"abstract":"Using the theoretical formalism of P Tassin et al. [Nature Photonics, 6, 259 (2012)] and C M Soukoulis et al. [Science 330, 1633 (2010)], we have theoretically studied the comparison of grapheme, superconductors and metals as conductors for meta-materials and plasmonics. We observed the following facts: We observed from the analysis of figureof merit that grapheme and highTC superconductors are not viable alternatives for metals in meta-materials. For Plasmonic systems, our analysis indicate that grapheme and high TCsuperconductors cannot outperform gold as a platform for surface Plasmon polaritons, because grapheme has a smaller propagation length-to wavelength ratio. Since the recent advancement in meta-materials and plasmonics have promised a number of exciting applications particularly at terahertz and optical frequencies this work will be quite useful in this regards. As noble metals used in these photonic structures are not good conductors at high frequencies resulting in significant dissipative loss, these findings will be helpful.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114222733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Theoretical Study of Raman Spectroscopy of Carbon Nanotubes and Evaluation of Energy Separation as a Function of Nanotube Diameter 碳纳米管拉曼光谱的理论研究及碳纳米管直径对能量分离的影响
Journal of Pure Applied and Industrial Physics Pub Date : 2018-10-04 DOI: 10.29055/jpaip/322
K. Singh, U. Singh, L. K. Mishra
{"title":"A Theoretical Study of Raman Spectroscopy of Carbon Nanotubes and Evaluation of Energy Separation as a Function of Nanotube Diameter","authors":"K. Singh, U. Singh, L. K. Mishra","doi":"10.29055/jpaip/322","DOIUrl":"https://doi.org/10.29055/jpaip/322","url":null,"abstract":"Using the theoretical formalism of P T Araujo et al. [Physica E, 42, 1251 (2010)] and M S Dresselhaus et al. {Phys. Rep. 409, 47 (2009)], we have theoretically studied the Raman spectroscopy of carbon nanotubes. We have evaluated separation energy between valence band and conduction band of both semiconducting and metallic nanotubes as a function of nanotube diameter. Our theoretically obtained results show that separation energy decrease with increase of diameter for both the systems. We have compared our evaluated results with the results of other theoretical workers and found that the agreement between our results with other workers are good so far trend of the results concerned. However the magnitude of our values is less than their values. We have also reported an experimental result of Raman radial breathing mode frequency as a function of reciprocal of the nanotube diameter. The measured frequency increases with reciprocal diameter. The observation is consistent with the two laser source 635nm and 785nm lasers. We have also reported an experimental result and theoretical result of transition energy Eii as a function of nanotube chiral number (n, m) for the isolated semiconducting SWNT for two laser source 635nm and 785nm. The reported both measured and evaluated are in good agreement to each other.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130586495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Theoretical Study of Link between Gravity and Dynamics of Quantum Liquids and Evaluation of some ofIts Parameters 引力与量子液体动力学关系的理论研究及其若干参数的评定
Journal of Pure Applied and Industrial Physics Pub Date : 2018-10-04 DOI: 10.29055/JPAIP/323
S. Singh, A. Sinha, L. K. Mishra
{"title":"A Theoretical Study of Link between Gravity and Dynamics of Quantum Liquids and Evaluation of some of\u0000Its Parameters","authors":"S. Singh, A. Sinha, L. K. Mishra","doi":"10.29055/JPAIP/323","DOIUrl":"https://doi.org/10.29055/JPAIP/323","url":null,"abstract":"Using the theoretical formalism of G E Volvik and Macro Fedi, we have studied the links between gravity and dynamics of quantum liquids. We have also outlined the gravity as a fluid dynamic phenomenon in super fluid quantum space. The detailed studies are the following: From above theoretical investigation, we have discussed effective gravity of super fluids. Quantized vortices with circulating super fluid velocity around them simulate the spinning cosmic strings. We have very elaborately discussed gravity as fluid dynamic phenomenon in a super fluid quantum space (SQS). We have outlined various examples in which quantum phenomenon resembles quantum super fluid.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115819906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of CTAB Concentration on the Morphology of Manganese Oxide Nanostructures CTAB浓度对氧化锰纳米结构形貌的影响
Journal of Pure Applied and Industrial Physics Pub Date : 2018-09-21 DOI: 10.29055/jpaip/317
B. Biswas, M. D. Purkayastha, T. Majumder
{"title":"Effect of CTAB Concentration on the Morphology of Manganese Oxide Nanostructures","authors":"B. Biswas, M. D. Purkayastha, T. Majumder","doi":"10.29055/jpaip/317","DOIUrl":"https://doi.org/10.29055/jpaip/317","url":null,"abstract":"","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126661786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Approximate Solution of Strongly Nonlinear Vibrationswhich Vary with Time 随时间变化的强非线性振动的近似解
Journal of Pure Applied and Industrial Physics Pub Date : 2018-09-21 DOI: 10.29055/JPAIP/318
Pinakee Dey, Asaduzzaman, R. Pervin, M. Sattar
{"title":"Approximate Solution of Strongly Nonlinear Vibrations\u0000which Vary with Time","authors":"Pinakee Dey, Asaduzzaman, R. Pervin, M. Sattar","doi":"10.29055/JPAIP/318","DOIUrl":"https://doi.org/10.29055/JPAIP/318","url":null,"abstract":"","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127582141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dependence of Geomagnetic Storms on Diverse Solar Wind Parameters, Interplanetary Magnetic Field, Interplanetary Conditions for Solar Cycle 23 地磁风暴对不同太阳风参数、行星际磁场、太阳周期23行星际条件的依赖
Journal of Pure Applied and Industrial Physics Pub Date : 2018-09-07 DOI: 10.29055/JPAIP/316
Chandni Mathpal, L. Prasad
{"title":"Dependence of Geomagnetic Storms on Diverse Solar Wind Parameters, Interplanetary Magnetic Field, Interplanetary Conditions for Solar Cycle 23","authors":"Chandni Mathpal, L. Prasad","doi":"10.29055/JPAIP/316","DOIUrl":"https://doi.org/10.29055/JPAIP/316","url":null,"abstract":"In order to find the association of geomagnetic storm (GS) with various solar wind parameters, interplanetary magnetic field (IMF B), interplanetary conditions (such as By, Bz and Ey), we incorporate the analysis technique by superposed-epoch method. The current analysis depict that solar wind parameters (such as solar wind speed V and plasma proton temperature), interplanetary conditions (such as Bz and Ey) and IMF B are geo-effective parameters while By component is not a geoeffective parameter. By the comparision of different indices and finally we conclude that Kp index is a powerful indicator of geomagnetic activity.","PeriodicalId":101818,"journal":{"name":"Journal of Pure Applied and Industrial Physics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116489219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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