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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Palstra, Thomas T. M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2019Electronic mobility and crystal structures of 2,5-dimethylanilinium triiodide and tin-based organic-inorganic hybrid compoundscitations
- 2018Micropatterned 2D Hybrid Perovskite Thin Films with Enhanced Photoluminescence Lifetimescitations
- 2018Micropatterned 2D Hybrid Perovskite Thin Films with Enhanced Photoluminescence Lifetimescitations
- 2018Magnetic functionality of thin film perovskite hybridscitations
- 2018Out-of-plane polarization in a layered manganese chloride hybridcitations
- 2016Band gap narrowing of Sns2 superstructures with improved hydrogen productioncitations
- 2016Crystallite size dependence of thermoelectric performance of CuCrO2citations
- 2016Confinement Effects in Low-Dimensional Lead Iodide Perovskite Hybridscitations
- 2016Band gap narrowing of SnS2 superstructures with improved hydrogen productioncitations
- 2015Effect of Vacancies on Magnetism, Electrical Transport, and Thermoelectric Performance of Marcasite FeSe2-delta (delta=0.05)citations
- 2015Effect of Vacancies on Magnetism, Electrical Transport, and Thermoelectric Performance of Marcasite FeSe2-delta (delta=0.05)citations
- 2014High-Purity Fe3S4 Greigite Microcrystals for Magnetic and Electrochemical Performancecitations
- 2014High-Purity Fe3S4 Greigite Microcrystals for Magnetic and Electrochemical Performancecitations
- 2014Self-Assembly of Ferromagnetic Organic–Inorganic Perovskite-Like Filmscitations
- 2014Self-Assembly of Ferromagnetic Organic–Inorganic Perovskite-Like Filmscitations
- 2013Excess manganese as the origin of the low-temperature anomaly in NiMnSbcitations
- 2012Spin-lattice coupling in iron jarositecitations
- 2010A two-dimensional magnetic hybrid material based on intercalation of a cationic Prussian blue analog in montmorillonite nanoclaycitations
- 2010Controlled tunnel-coupled ferromagnetic electrodes for spin injection in organic single-crystal transistorscitations
- 2009Competition between Jahn-Teller coupling and orbital fluctuations in HoVO3citations
- 2008Magnetic and dielectric properties of YbMnO(3) perovskite thin filmscitations
- 2008Magnetoelectric coupling in the cubic ferrimagnet Cu(2)OSeO(3)citations
- 2007Experimental evidence for an intermediate phase in the multiferroic YMnO3citations
- 2007Experimental evidence for an intermediate phase in the multiferroic YMnO3citations
- 2007Crystal growth, structure, and electronic band structure of tetracene-TCNQcitations
- 2007Competing orbital ordering in RVO(3) compoundscitations
- 2006Experimental evidence for an intermediate phase in the multiferroic YMnO3citations
- 2006Carbon nanotubes encapsulating superconducting single-crystalline tin nanowirescitations
- 2003Identification of polymorphs of pentacenecitations
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article
Excess manganese as the origin of the low-temperature anomaly in NiMnSb
Abstract
<p>The archetype of half-metallic magnetism, NiMnSb, has been reported to show an anomaly at low temperature. The high degree of spin polarization of the conduction electrons, characteristic of a half metal, is lost above this temperature. Recently reported experiments show that this anomaly is not an intrinsic property of NiMnSb: it requires an excess of (interstitial) manganese. Electronic structure calculations reported here show that the excess manganese orders antiferromagnetically with respect to the host magnetization, reduces the half-metallic band gap, and pushes the top of the valence band up to 36 meV below the Fermi level. Thermal excitations from minority to majority spin channel induce an avalanche effect, leading to the disordering of the magnetic moments of the excess manganese. This mechanism is supported by measurements of the magnetization as a function of temperature on NiMn1.05Sb: It shows a maximum in the magnetization measured in a field of 400 Oe.</p>