作者: chemoprevention 時(shí)間: 2025-3-21 22:09 作者: Additive 時(shí)間: 2025-3-22 01:35 作者: 公司 時(shí)間: 2025-3-22 07:14
Multi-Scale Phase Modulations in Colossal Magnetoresistance Manganites,types of phase inhomogeneities directly relevant to the colossal magnetoresistance (CMR) are discussed. The first type involves micrometer-scale coexistence of structurally and electronically different phases. We present extensive experimental data for a prototypical system exhibiting such a phase c作者: ascend 時(shí)間: 2025-3-22 12:17 作者: ensemble 時(shí)間: 2025-3-22 13:10 作者: ensemble 時(shí)間: 2025-3-22 19:47 作者: osteopath 時(shí)間: 2025-3-23 01:15
Theory of Manganites Exhibiting Colossal Magnetoresistance,on. A recent example, subsequent to that of cuprate superconductors, is of rare earth manganites doped with alkaline earths, namely ......, which exhibit colossal magnetoresistance, metal insulator transition and many other poorly understood phenomena. Here we show that the strong Jahn Teller coupli作者: ARENA 時(shí)間: 2025-3-23 01:57
Masami Hane,Takeo Ikezawa,George H. GilmertI review the theoretical investigation of the magnetic excitations in the double exchange model.作者: 結(jié)構(gòu) 時(shí)間: 2025-3-23 08:29
Magnetic Excitations of the Double Exchange Model,I review the theoretical investigation of the magnetic excitations in the double exchange model.作者: 不能根除 時(shí)間: 2025-3-23 12:07 作者: 高調(diào) 時(shí)間: 2025-3-23 15:46
M. Hackel,H. Kosina,S. Selberherrmagnetic field (colossal magnetoresistance or CMR), has been shown to arise from a strong charge-lattice coupling mediated by the Jahn-Teller distortion of Mn. -ions. We review recent structural work on conventional A.A ’.MnO. and bi-layered A.A’.Mn.O. manganite perovskites, that shows that this cou作者: 衰弱的心 時(shí)間: 2025-3-23 21:22
Modeling Nano-Structure Devices,ring. We show that these systems evolve, at low temperature, from a canted antiferromagnetic state (CAF) towards an insulating ferromagnetic state (FI), approaching the metallic transition (.. =0.22 and ... 0.17). For .. and ... 0.125, we observe magnetic elastic diffuse scattering characteristic of作者: Spongy-Bone 時(shí)間: 2025-3-23 23:01 作者: 雇傭兵 時(shí)間: 2025-3-24 05:45
D. Schipanski,Z. Gergintschew,J. Kositzatypes of phase inhomogeneities directly relevant to the colossal magnetoresistance (CMR) are discussed. The first type involves micrometer-scale coexistence of structurally and electronically different phases. We present extensive experimental data for a prototypical system exhibiting such a phase c作者: justify 時(shí)間: 2025-3-24 08:33 作者: 不規(guī)則 時(shí)間: 2025-3-24 11:12 作者: 抱狗不敢前 時(shí)間: 2025-3-24 16:18 作者: 打算 時(shí)間: 2025-3-24 22:18
https://doi.org/10.1007/978-94-011-3216-9on. A recent example, subsequent to that of cuprate superconductors, is of rare earth manganites doped with alkaline earths, namely ......, which exhibit colossal magnetoresistance, metal insulator transition and many other poorly understood phenomena. Here we show that the strong Jahn Teller coupli作者: 截?cái)?nbsp; 時(shí)間: 2025-3-25 01:05 作者: 煩人 時(shí)間: 2025-3-25 04:31 作者: 和諧 時(shí)間: 2025-3-25 09:29
Charge and Orbital Ordering of Manganites Observed by Resonant X-Ray Scattering,作者: 半導(dǎo)體 時(shí)間: 2025-3-25 13:26
Book 20041st editioner physicists that although the problem of high temperature superconductivity is a difficult one to solve, a quantitative understanding of CMR phenomena might be well within reach. This book is intended to be an account of the latest developments in the phys- ics of CMR manganites. When I planned th作者: Commemorate 時(shí)間: 2025-3-25 15:58 作者: Congregate 時(shí)間: 2025-3-25 21:30
M. Hackel,H. Kosina,S. Selberherrwork has been able to uncover the complex short range ordering of charges and orbitals at these compositions that show both longitudinal local distortions and/or co-existence with transverse distortions typically found at higher dopings. For Mn. -rich compositions . >l/2), ground states tend towards作者: 勉強(qiáng) 時(shí)間: 2025-3-26 01:56
Modeling Nano-Structure Devices,he same q-dependent intensity, ... 0.125 is a limit case where the (CAF) state and the diffuse scattering disappear. In the compounds with .. = 0.20 and ... 0.125, an intriguing insulating and ferromagnetic (FI) phase occurs at low temperature. The superstructure Bragg peaks at .. = (0, 0, .)., typi作者: vasospasm 時(shí)間: 2025-3-26 07:12
José López-Serrano,Andrzej J. Strojwasistortions (e.g. Jahn-Teller distortions) as well as with the spin degrees of freedom (double exchange). An other important factor consistent with this data appears to be nanoscale electronic phase separation.作者: 小蟲 時(shí)間: 2025-3-26 08:29
D. Schipanski,Z. Gergintschew,J. Kositzaamagnetic state commonly found in manganites at high-temperatures. In this state, nanometer-scale structural correlations associated with nanoscale charge/orbital ordered regions are observed. Experimental investigation of numerous manganite systems indicates that these correlations are generic in o作者: paragon 時(shí)間: 2025-3-26 13:53
https://doi.org/10.1007/978-3-7091-6619-2d A. Moreo, Phys. Rep. ., 1 (2001)]. There, a comprehensive analysis of the experimental literature can be found. In real manganites, the tendencies toward inhomogeneous states are notorious in CMR regimes, in excellent agreement with the theoretical description outlined here.作者: Petechiae 時(shí)間: 2025-3-26 19:36
https://doi.org/10.1007/978-94-011-3216-9fferent . and . states, and their relative energies and occupation as influenced by doping x, temperature ., local Coulomb repulsion . etc., underlies the unique effects seen in manganites. We present results from strong correlation calculations using the dynamical mean-field theory which accord wit作者: ANNUL 時(shí)間: 2025-3-26 22:14
Crystal and Magnetic Structure from Hole to Electron Doped Manganites,work has been able to uncover the complex short range ordering of charges and orbitals at these compositions that show both longitudinal local distortions and/or co-existence with transverse distortions typically found at higher dopings. For Mn. -rich compositions . >l/2), ground states tend towards作者: 我們的面粉 時(shí)間: 2025-3-27 03:50 作者: Host142 時(shí)間: 2025-3-27 06:13 作者: Venules 時(shí)間: 2025-3-27 11:38 作者: 慢慢流出 時(shí)間: 2025-3-27 14:03
Theory of Manganites,d A. Moreo, Phys. Rep. ., 1 (2001)]. There, a comprehensive analysis of the experimental literature can be found. In real manganites, the tendencies toward inhomogeneous states are notorious in CMR regimes, in excellent agreement with the theoretical description outlined here.作者: 叢林 時(shí)間: 2025-3-27 21:10
Theory of Manganites Exhibiting Colossal Magnetoresistance,fferent . and . states, and their relative energies and occupation as influenced by doping x, temperature ., local Coulomb repulsion . etc., underlies the unique effects seen in manganites. We present results from strong correlation calculations using the dynamical mean-field theory which accord wit作者: EWE 時(shí)間: 2025-3-27 23:08 作者: 控訴 時(shí)間: 2025-3-28 04:02 作者: 大方一點(diǎn) 時(shí)間: 2025-3-28 07:28 作者: 易發(fā)怒 時(shí)間: 2025-3-28 12:47
Orbital Effects in Manganites,iety of competing interactions. This quite often leads to frustration of classical ordered states and to the enhancement of quantum effects. Quantum fluctuations and related theoretical models are briefly discussed, including the occurrence of resonating orbital bonds in the metallic phase of the colossal magnetoresistance manganites.作者: attenuate 時(shí)間: 2025-3-28 14:49
Spin Dynamics of Bilayer Manganites,double exchange model. This is compared with experimental results for a ferromagnetic bilayer system. A mean-field type theory of doping dependence of the exchange interactions in bilayer manganites has also been developed and compared is compared with the experimental results.作者: saturated-fat 時(shí)間: 2025-3-28 19:50 作者: 品嘗你的人 時(shí)間: 2025-3-29 02:19 作者: etiquette 時(shí)間: 2025-3-29 04:22
The Effect of Recycled-Rubber Energy Absorbing Grids on the Performance of Railway Ballast: A Review,tional polymer geogrids, Under Ballast Mats, and rubber grids in view of reducing track deformation and ballast breakage will be presented to assess the additional benefits of rubber, which include improved resiliency and damping properties in conjunction with interlocking granular particles.作者: 脫水 時(shí)間: 2025-3-29 08:55
