Results 141 to 150 of about 39,546 (266)

On the Spin Wave Spectrum of an Antiferromagnet [PDF]

, 1964
Motoyuki Tanaka, Kazuhisa Tomita
openalex   +1 more source

Aligning spins in antiferromagnetic films using antiferromagnets

, 2005
We have explored the possibility to orient spins in antiferromagnetic thin films with low magnetocrystalline anisotropy via the exchange coupling to adjacent antiferromagnetic films with high magnetocrystalline anisotropy. We have used MnO as a prototype for a system with negligible single-ion anisotropy. We were able to control its spin direction very
Csiszar, S. I., Haverkort, M. W., Burnus, T., Hu, Z., Tanaka, A., Hsieh, H. H., Lin, H. -J., Chen, C. T., Cezar, J. C., Brookes, N. B., Hibma, T., Tjeng, L. H.   +11 more
openaire   +2 more sources

Oxygen Vacancy Defect Engineering for Transverse Thermoelectric Enhancement: a Novel Extrinsic Pathway beyond Intrinsic Approaches

Advanced Science, EarlyView.
Transverse thermoelectric (TE) technology gains increasing attention as it enables efficient power generation within a single TE element and eliminates junctions. This study enhances transverse thermopower in polycrystalline Sr₃Co₄O₁₁₋δ through oxygen vacancy defect engineering, utilizing the anomalous Nernst effect to improve TE efficiency.
Min Young Kim, Dongkyu Lee, June Ho Lee, Donghwa Lee, Gi‐Yeop Kim, Si‐Young Choi, Joseph P. Heremans, Hyungyu Jin   +7 more
wiley   +1 more source

Oxygen reactivity regulation via double‐exchange interaction for enhanced water oxidation

EcoMat, Volume 5, Issue 2, February 2023., 2023
The double‐exchange interaction in asymmetric Ru‐O‐Ti backbone governs the electronic states of Ru catalytic center to regulate the oxygen reactivity through ligand hole introduction and spin‐polarization channel construction. The steered oxygen species facilitates the rate‐determining step of O–O coupling during oxygen evolution reaction (OER) process,
Ning Zhang, Cong Wang, Jiewei Chen, Yang Chai   +3 more
wiley   +1 more source

Four‐Centre, Multielectron Bonding in Rare‐Earth Germole Sandwich Complexes

Angewandte Chemie, EarlyView.
Stepwise one‐ and two‐electron reduction of the dimeric germole‐ligated sandwich complexes [(η5‐CpGe)M(η5‐Cpttt)]2 (M = Y, Gd, Dy) produces the isostructural complex anions [{(η5‐CpGe)M(η5‐Cpttt)}2]− and [{(η5‐CpGe)M(η5‐Cpttt)}2]2−, respectively. The additional electrons populate bonding molecular orbitals extending across the {M2Ge2} rings, resulting ...
Siddhartha De, Arpan Mondal, Jem Pitcairn, Lucy Clark, Jinkui Tang, Akseli Mansikkamäki, Richard A. Layfield   +6 more
wiley   +2 more sources

Tuning the Magnetism in Ultrathin CrxTey Films by Lattice Dimensionality

Advanced Electronic Materials, EarlyView.
By a joint study combining phase‐controlled molecular beam epitaxy, magnetization, magneto‐transport measurements, spin‐polarized scanning tunneling microscopy, and density functional theory calculations, the authors elucidate how the macroscopic magnetic properties of ultrathin CrTe2 and Cr3Te4 films are tuned by the dimensionality of exchange ...
Guangyao Miao, Minghui Gu, Haojie Sun, Pan Chen, Jiade Li, Siwei Xue, Nuoyu Su, Zhibin Su, Weiliang Zhong, Zhihan Zhang, Xuetao Zhu, Jiandi Zhang, Yugui Yao, Wei Jiang, Meng Meng, Weihua Wang, Jiandong Guo   +16 more
wiley   +1 more source

Magnetic exchange interactions in binuclear and tetranuclear iron(III) complexes described by spin‐flip DFT and Heisenberg effective Hamiltonians

Journal of Computational Chemistry, Volume 44, Issue 3, Page 367-380, January 30, 2023., 2023
Exchange interactions in polynuclear Fe (III) compounds are derived from ab initio calculations based on a single spin‐flip (1SF) approach. Abstract Low‐energy spectra of single‐molecule magnets (SMMs) are often described by Heisenberg Hamiltonians.
Saikiran Kotaru, Sven Kähler, Maristella Alessio, Anna I. Krylov   +3 more
wiley   +1 more source

Energy and Structure of the Terbium Domain Wall

Metals
The domain wall energy is calculated by the balance between exchange, magnetocrystalline anisotropy and magnetoelastic energy contributions. The described method is theoretical and is based on experimental measurements of neutron inelastic scattering ...
Marcos F. de Campos, Kaio S. T. de Souza, Ingrid R. de Lima, Charle C. da Silva, Jose A. de Castro   +4 more
doaj   +1 more source

Spin-polarized antiferromagnetic metals [PDF]

arXiv
Spin-polarized antiferromagnets have recently gained significant interest because they combine the advantages of both ferromagnets (spin polarization) and antiferromagnets (absence of net magnetization) for spintronics applications. In particular, spin-polarized antiferromagnetic metals can be useful as active spintronics materials because of their ...
arxiv  

Strain‐Induced Reduction of Centrosymmetry in Rare‐Earth Iron Garnet Thin Films

Advanced Electronic Materials, EarlyView.
This study introduces reduced centrosymmetry in rare‐earth iron garnet thin films. Studies on compressively strained Sm3Fe5O12 and tensile‐strained Lu3Fe5O12 thin films reveal that above critical thickness, a more than tenfold increase in coercivity and non‐zero orbital moments indicate a reduction of centrosymmetry.
EMK Ikball Ahamed, Hiroyasu Yamahara, Md Shamim Sarker, Haining Li, Kazuo Morikawa, Kohei Yamagami, Masaki Kobayashi, Munetoshi Seki, Hitoshi Tabata   +8 more
wiley   +1 more source