Results 51 to 60 of about 126,994 (279)

Non-perturbative approaches to magnetism in strongly correlated electron systems

, 1996
The microscopic basis for the stability of itinerant ferromagnetism in correlated electron systems is examined. To this end several routes to ferromagnetism are explored, using both rigorous methods valid in arbitrary spatial dimensions, as well as ...
Blümer, N., Held, K., Kollar, M., Schlipf, J., Ulmke, M., Vollhardt, D.   +5 more
core   +1 more source

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

Effects of Thermal Annealing on Optical and Microscopic Ferromagnetic Properties in InZnP:Ag Nano-Rods

Nanomaterials, 2022
InZnP:Ag nano-rods fabricated by the ion milling method were thermally annealed in the 250~350 °C temperature range and investigated the optimum thermal annealing conditions to further understand the mutual correlation between the optical properties and ...
Juwon Lee, Yoon Shon, Younghae Kwon, Ji-Hoon Kyhm, Deuk Young Kim, Joon Hyun Kang, Chang-Soo Park, Kyoung Su Lee, Eun Kyu Kim   +8 more
doaj   +1 more source

Doping change and distortion effect on double-exchange ferromagnetism

, 2005
Doping change and distortion effect on the double-exchange ferromagnetism are studied within a simplified double-exchange model. The presence of distortion is modelled by introducing the Falicov-Kimball interaction between itinerant electrons and ...
Minh-Tien Tran, U. Brandt, V. Zlatic, V. Zlatic, Van-Nham Phan   +4 more
core   +1 more source

Oxygen adsorption effect on magnetic properties of graphite [PDF]

, 2011
Both experimental and theoretical studies of the magnetic properties of micrographite and nanographite indicate a crucial role of the partial oxidation of graphitic zigzag edges in ferromagnetism.
Boukhvalov, D. W., da Silva, R. R., Kopelevich, Y., Moehlecke, S.   +3 more
core   +2 more sources

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source

Ambipolar ferromagnetism by electrostatic doping of a manganite

Nature Communications, 2018
An ambipolar ferromagnet with both electron- and hole-doped ferromagnetism in a single material would facilitate understanding of ferromagnetic semiconductors for spintronic applications.
L. M. Zheng, X. Renshaw Wang, W. M. Lü, C. J. Li, T. R. Paudel, Z. Q. Liu, Z. Huang, S. W. Zeng, Kun Han, Z. H. Chen, X. P. Qiu, M. S. Li, Shize Yang, B. Yang, Matthew F. Chisholm, L. W. Martin, S. J. Pennycook, E. Y. Tsymbal, J. M. D. Coey, W. W. Cao   +19 more
doaj   +1 more source

Ferromagnetism and Superconductivity in the multi-orbital Hubbard Model: Hund's Rule Coupling versus Crystal-Field Splitting

, 2003
The multi-orbital Hubbard model in one dimension is studied using the numerical diagonalization method. Due to the effect of the crystal-field splitting $\Delta$, the fully polarized ferromagnetism which is observed in the strong coupling regime becomes ...
Asai K., Gill W., Gunnarsson O., Haldane F. D. M., Heikes R. R., Held K., Imada M., Itoh M., Itoh M., Jonker G. H., Koshibae W., Kuei J., Louca D., Maeno Y., Masuda H., Momoi T., Motohashi T., Nomura T., Ogata M., Raccah P. M., Sakamoto H., Sano K., Sano K., Sano K., Sano K., Sano K., Schulz H. J., Shen S. Q., Takada K., Takimoto T., Terasaki I., Tokura Y., Voit J., Yamaji K.   +33 more
core   +1 more source

High Temperature Ferromagnetism with Giant Magnetic Moment in Transparent Co-doped SnO2-d [PDF]

, 2003
Occurrence of room temperature ferromagnetism is demonstrated in pulsed laser deposited thin films of Sn1-xCoxO2-d ...
C. Lanci, H. D. Drew, J. Higgins, J. P. Buban, J. R. Simpson, J. Y. Kim, N. D. Browning, R. J. Choudhary, R. L. Greene, S. B. Ogale, S. Das Sarma, S. Das Sarma, S. E. Lofland, S. N. Kale, S. R. Shinde, T. Venkatesan, V. N. Kulkarni   +16 more
core   +3 more sources

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source