scholarly journals Effect of band filling on anomalous Hall conductivity and magneto-crystalline anisotropy in NiFe epitaxial thin films

AIP Advances ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 015101 ◽  
Author(s):  
Zhong Shi ◽  
Hang-Yu Jiang ◽  
Shi-Ming Zhou ◽  
Yan-Liang Hou ◽  
Quan-Lin Ye ◽  
...  
Keyword(s):  
Thin Films ◽  
Hall Conductivity ◽  
Epitaxial Thin Films ◽  
Crystalline Anisotropy ◽  
Band Filling ◽  
Magneto Crystalline Anisotropy

HALL CONDUCTIVITY FLUCTUATIONS IN EPITAXIAL YBa2Cu3O7-δ THIN FILMS

2001 ◽  
Vol 15 (25) ◽  
pp. 1117-1129 ◽  
Author(s):  
J. ROA-ROJAS ◽  
P. PRIETO ◽  
P. PUREUR
Keyword(s):  
Thin Films ◽  
Universality Class ◽  
Hall Conductivity ◽  
Epitaxial Thin Films ◽  
Superconducting Transition ◽  
Hall Resistivity ◽  
Longitudinal Conductivity ◽  
Zero Resistance ◽  
Applied Fields ◽  
2D And 3D

We present systematic measurements of the longitudinal and Hall resistivities in YBa2Cu3O7-δ epitaxial thin films. Above the critical temperature, T c , the longitudinal resistivity, ρxx(T), increases linearly with temperature, whereas the Hall resistivity, ρxy(T), varies inversely proportional to T. Consequently, the cotangent of the Hall angle shows quadratic temperature dependence. The fluctuation contributions to both the longitudinal and Hall conductivities in the normal phase are studied. In the case of the longitudinal conductivity, 2D and 3D Gaussian regimes are observed. In addition, a genuine 3D-XY critical regime is discerned closely above T c in experiments performed at low applied fields. The value of the corresponding critical exponent, λ C =0.33, indicates that the dynamic universality class for the superconducting transition in the analyzed system is given by the Model E of Hohenberg and Halperin. The analysis of the Hall conductivity fluctuations above T c reveals the occurrence of 2D and 3D Gaussian regimes which are consistent with those identified in the longitudinal conductivity results. Below T c the Hall resistivity shows a sign reversal before attaining the zero resistance state.

Magnetism and Magnetic Interactions at Transition Metal Surfaces and Interfaces

1993 ◽  
Vol 313 ◽  
Author(s):  
Ruqian Wu ◽  
Dingsheng Wang ◽  
A.J. Freeman
Keyword(s):  
Thin Films ◽  
Magnetic Circular Dichroism ◽  
Magnetic Interactions ◽  
Exciting Field ◽  
Magnetic Systems ◽  
Surfaces And Interfaces ◽  
Crystalline Anisotropy ◽  
Low Dimensional ◽  
Structure Calculations ◽  
Magneto Crystalline Anisotropy

ABSTRACTIn the exciting field of low dimensional magnetic systems including surfaces, interfaces and thin-films, local spin density (LSD) functional ab initio electronic structure calculations have played a key role by not only providing a clearer understanding of the experimental observations but also predicting new systems with desired properties. Our extensive calculated results demonstrate that: (i) Magnetic clean surfaces or interfaces with inert substrates undergo strong magnetic moment enhancements; (ii) the strong interaction with nonmagnetic transition metals diminishes (completely in some cases) the ferromagnetism and usually stabilizes the antiferromag-netic configuration. By including spin-orbit coupling as a perturbation, (i) reliable results for the Magneto-crystalline anisotropy of ultra-thin films can be obtained using the state-tracking procedure, although the anisotropy energy is a few tenths of a MeV; (ii) spectra of the Magneto-optical Kerr effects and magnetic circular dichroism in the soft x-ray region can be determined.

The role of intermediate S-polymorph towards high piezoelectricity in La-doped BiFeO3 epitaxial thin films

2021 ◽  
Vol 207 ◽  
pp. 116683
Author(s):  
Jun Young Lee ◽  
Gopinathan Anoop ◽  
Sanjith Unithrattil ◽  
WooJun Seol ◽  
Youngki Yeo ◽  
...  
Keyword(s):  
Thin Films ◽  
Epitaxial Thin Films ◽  
La Doped

scholarly journals Precise control of Jeff=12 magnetic properties in Sr2IrO4 epitaxial thin films by variation of strain and thin film thickness

2020 ◽  
Vol 102 (21) ◽  
Author(s):  
Stephan Geprägs ◽  
Björn Erik Skovdal ◽  
Monika Scheufele ◽  
Matthias Opel ◽  
Didier Wermeille ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Magnetic Properties ◽  
Film Thickness ◽  
Epitaxial Thin Films ◽  
Thin Film Thickness ◽  
Precise Control

scholarly journals Realization of epitaxial thin films of the superconductor K-doped BaFe2As2

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Dongyi Qin ◽  
Kazumasa Iida ◽  
Takafumi Hatano ◽  
Hikaru Saito ◽  
Yiming Ma ◽  
...  
Keyword(s):  
Thin Films ◽  
Epitaxial Thin Films

Study of magneto-optical activity in cerium substituted yttrium iron garnet (Ce:YIG) epitaxial thin films

2021 ◽  
Vol 129 (9) ◽  
pp. 093903
Author(s):  
Manik Kuila ◽  
Uday Deshpande ◽  
R. J. Choudhary ◽  
Parasmani Rajput ◽  
D. M. Phase ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Activity ◽  
Yttrium Iron Garnet ◽  
Epitaxial Thin Films ◽  
Yttrium Iron ◽  
Iron Garnet

scholarly journals Chemical solution synthesis and ferromagnetic resonance of epitaxial thin films of yttrium iron garnet

2017 ◽  
Vol 1 (7) ◽  
Author(s):  
Irene Lucas ◽  
Pilar Jiménez-Cavero ◽  
J. M. Vila-Fungueiriño ◽  
Cesar Magén ◽  
Soraya Sangiao ◽  
...  
Keyword(s):  
Thin Films ◽  
Ferromagnetic Resonance ◽  
Yttrium Iron Garnet ◽  
Epitaxial Thin Films ◽  
Chemical Solution ◽  
Solution Synthesis ◽  
Yttrium Iron ◽  
Iron Garnet

scholarly journals Thickness dependent electrical resistivity modulation in tensile-strained epitaxial thin films of calcium manganese oxide

AIP Advances ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 045124
Author(s):  
Cacie Hart ◽  
Zoey Warecki ◽  
Grace Yong ◽  
David Houston ◽  
Rajeswari Kolagani
Keyword(s):  
Thin Films ◽  
Electrical Resistivity ◽  
Manganese Oxide ◽  
Epitaxial Thin Films
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