Results 101 to 110 of about 126,994 (279)

Origin of room-temperature ferromagnetism in Mn doped semiconducting CdGeP2

, 2001
CdGeP2 chalcopyrites doped with Mn have been recently found to exhibit room temperature ferromagnetism. Isovalent substitution of the Cd site is expected, however, to create antiferromagnetism, in analogy with the well-known CdTe:Mn (d^5) case.
Mahadevan, Priya, Zunger, Alex
core   +1 more source

Magnetic and Structural Response Tuned by Coexisting Mn Concentration‐Dependent Phases in MnBi2Te4 Thin Film Grown on GaAs(001) by Molecular Beam Epitaxy

Advanced Functional Materials, EarlyView.
The study explores structural and magnetic properties of one of the most recent topological quantum materials (MnBi2Te4). The Mn‐poor structure leads to stacking faults (quintuple layer ‐ QL of Bi2Te3 formation instead of a septuple layer ‐ SL of MnBi2Te4), resulting in a coexistence between weak antiferromagnetism and ferromagnetism.
Wesley F. Inoch, Sergio L. A. Mello, Gilberto Rodrigues‐Junior, Sukarno O. Ferreira, Marcelo M. Sant'Anna, Benjamin R. Salles, Mateus T. Souza, Sérgio L. Morelhão, Maybi F. Sampaio, Bráulio S. Archanjo, Leonarde N. Rodrigues   +10 more
wiley   +1 more source

Exploring the thermodynamics of spin-1 Bose gases with synthetic magnetization

New Journal of Physics, 2019
We study the thermodynamic properties of a spin-1 Bose gas across the Bose–Einstein condensation transition. We present the theoretical description of the thermodynamics of a trapped ideal spin-1 Bose gas and we describe the phases that can be obtained ...
Daniel Benedicto Orenes, Anna U Kowalczyk, Emilia Witkowska, Giovanni Barontini   +3 more
doaj   +1 more source

A theory of ferromagnetism by Ettore Majorana

, 2008
We present and analyze in detail an unknown theory of ferromagnetism developed by Ettore Majorana as early as the beginnings of 1930s, substantially different in the methods employed from the well-known Heisenberg theory of 1928 (and from later ...
Ashcroft, Bethe, Bloch, Bloch, Bloch, Brush, Debye, Esposito, Esposito, Esposito, Gentile, Heisenberg, Heisenberg, Heisenberg, Heisenberg, Heitler, Inglis, Inglis, Inglis, Ising, Langevin, McKeehan, Peierls, S. Esposito, Slater, van Vleck, Weiss, Weiss   +27 more
core   +1 more source

Emergent Spin‐Glass Behavior in an Iron(II)‐Based Metal–Organic Framework Glass

Advanced Functional Materials, EarlyView.
A one‐pot, solvent‐free synthesis yields an Fe2+‐based metal‐organic framework (MOF) glass featuring a continuous random network structure. The material exhibits spin‐glass freezing at 14 K, driven by topological‐disorder and short‐range magnetic frustration, showcasing the potential of MOF glasses as a plattform for cooperative magnetic phenomena in ...
Chinmoy Das, Soma Salamon, Joachim Landers, Jan‐Benedikt Weiß, Wen‐Long Xue, Pascal Kolodzeiski, Roman Pallach, Heiko Wende, Sebastian Henke   +8 more
wiley   +1 more source

Metallic ferromagnetism without exchange splitting

, 1998
In the band theory of ferromagnetism there is a relative shift in the position of majority and minority spin bands due to the self-consistent field due to opposite spin electrons.
A. Mielke, A.M. van der Kraan, B.N. Harmon, C. Zener, D. Gignoux, D. Vollhardt, D.C. Mattis, D.K. Campbell, D.K. Campbell, D.S. Dessau, E.C. Stoner, E.P. Wohlfarth, E.P. Wohlfarth, H. Asakawa, H. Tasaki, J. Callaway, J. E. Hirsch, J. Hubbard, J. Wahle, J.C. Amadon, J.E. Hirsch, J.E. Hirsch, J.E. Hirsch, J.E. Hirsch, J.E. Hirsch, J.E. Hirsch, J.E. Hirsch, J.E. Hirsch, K. Ono, L. Degiorgi, M. Shimizu, P.G. deGennes, P.G. deGennes, P.W. Anderson, S. Kivelson, V.L. Moruzzi, Y. Okimoto, Y. Okimoto   +37 more
core   +1 more source

Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal

Advanced Functional Materials, EarlyView.
Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland, John Fullerton, PeiYu Cai, Rabindra Basnet, Santosh Karki Chhetri, Jin Hu, Elton J. G. Santos, Yue Li, Charudatta Phatak, Amanda Petford‐Long   +9 more
wiley   +1 more source

Ferromagnetic half-metallicity in half-Heusler AuMnSn:Te Alloy

Materials Research Express, 2020
Identifying a strategy for beneficial band-engineering is vital for the optimization of spintronic materials. In this study, we demonstrate the beneficial effects of electron doping on ferromagnetic (FM) half-Heusler AuMnSn _1− _x Te _x (0 ≤  x  ≤ 1 ...
T C Chibueze, C E Ekuma, A T Raji, D P Rai, C M I Okoye   +4 more
doaj   +1 more source

Ferromagnetic kinetic exchange interaction in magnetic insulators [PDF]

, 2020
Zhishuo Huang, Dan Liu, Akseli Mansikkamäki, Veacheslav Vieru, Naoya Iwahara, Liviu F. Chibotaru   +5 more
openalex   +1 more source

Surface magnetization in non-doped ZnO nanostructures

, 2009
We have investigated the magnetic properties of non-doped ZnO nanostructures by using {\it ab initio} total energy calculations. Contrary to many proposals that ferromagnetism in non-doped semiconductors should be induced by intrinsic point defects, we ...
Arantes, J. T., Dalpian, G. M., Fazzio, A., Schoenhalz, A. L.   +3 more
core   +1 more source