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Magnetism and ion d...
Magnetism and ion diffusion in honeycomb layered oxide K2Ni2TeO6
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- Matsubara, Nami (författare)
- KTH,Material- och nanofysik,KTH Royal Inst Technol, Sweden
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- Nocerino, Elisabetta (författare)
- KTH,Material- och nanofysik,KTH Royal Inst Technol, Sweden
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- Forslund, Ola Kenji (författare)
- KTH,Material- och nanofysik,KTH Royal Inst Technol, Sweden
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- Zubayer, Anton (författare)
- KTH,Material- och nanofysik,KTH Royal Inst Technol, Sweden
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- Papadopoulos, Konstantinos (författare)
- Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden.
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- Andreica, Daniel (författare)
- Babes Bolyai Univ, Fac Phys, Cluj Napoca 400084, Romania.
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- Sugiyama, Jun (författare)
- Comprehens Res Org Sci & Soc CROSS, Neutron Sci & Technol Ctr, Tokai, Ibaraki 3191106, Japan.
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- Palm, Rasmus (författare)
- KTH,Material- och nanofysik,KTH Royal Inst Technol, Sweden
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- Guguchia, Zurab (författare)
- Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland.
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- Cottrell, Stephen P. (författare)
- Rutherford Appleton Lab, ISIS Muon Facil, Didcot OX11 0QX, Oxon, England.
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- Kamiyama, Takashi (författare)
- High Energy Accelerator Res Org, Inst Mat Struct Sci, 203-1 Shirakata, Tokai, Ibaraki 3191106, Japan.
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- Saito, Takashi (författare)
- High Energy Accelerator Res Org, Inst Mat Struct Sci, 203-1 Shirakata, Tokai, Ibaraki 3191106, Japan.
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- Kalaboukhov, Alexei (författare)
- Chalmers Univ Technol, Microtechnol & Nanosci, S-41296 Gothenburg, Sweden.
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- Sassa, Yasmine (författare)
- Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden.
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- Masese, Titus (författare)
- Natl Inst Adv Ind Sci & Technol, Res Inst Electrochem Energy RIECEN, Dept Energy & Environm, Ikeda, Osaka 5638577, Japan.;Natl Inst Adv Ind Sci & Technol, AIST Kyoto Univ Chem Energy Mat Open Innovat Lab, Sakyo Ku, Kyoto 6068501, Japan.
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- Månsson, Martin, As. Prof. 1976- (författare)
- KTH,Material- och nanofysik,KTH Royal Inst Technol, Sweden
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(creator_code:org_t)
- 2020-10-27
- 2020
- Engelska.
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Ingår i: Scientific Reports. - : Springer Nature. - 2045-2322. ; 10:1
- Relaterad länk:
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https://doi.org/10.1...
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https://www.nature.c...
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- In the quest for developing novel and efficient batteries, a great interest has been raised for sustainable K-based honeycomb layer oxide materials, both for their application in energy devices as well as for their fundamental material properties. A key issue in the realization of efficient batteries based on such compounds, is to understand the K-ion diffusion mechanism. However, investigation of potassium-ion (K+) dynamics in materials using e.g. NMR and related techniques has so far been very challenging, due to its inherently weak nuclear magnetic moment, in contrast to other alkali ions such as lithium and sodium. Spin-polarised muons, having a high gyromagnetic ratio, make the muon spin rotation and relaxation (mu+SR) technique ideal for probing ions dynamics in these types of energy materials. Here we present a study of the low-temperature magnetic properties as well as K+ dynamics in honeycomb layered oxide material K2Ni2TeO6 using mainly the mu+SR technique. Our low-temperature mu+SR results together with complementary magnetic susceptibility measurements find an antiferromagnetic transition at T-N approximate to 27 K. Further mu+SR studies performed at higher temperatures reveal that potassium ions (K+) become mobile above 200 K and the activation energy for the diffusion process is obtained as E-a = 121(13) meV. This is the first time that K+ dynamics in potassium-based battery materials has been measured using mu+SR. Assisted by high-resolution neutron diffraction, the temperature dependence of the K-ion self diffusion constant is also extracted. Finally our results also reveal that K-ion diffusion occurs predominantly at the surface of the powder particles. This opens future possibilities for potentially improving ion diffusion as well as K-ion battery device performance using nano-structuring and surface coatings of the particles.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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Matsubara, Nami
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Nocerino, Elisab ...
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Forslund, Ola Ke ...
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Zubayer, Anton
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Papadopoulos, Ko ...
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Andreica, Daniel
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Sugiyama, Jun
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Palm, Rasmus
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Guguchia, Zurab
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Cottrell, Stephe ...
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Kamiyama, Takash ...
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Saito, Takashi
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Kalaboukhov, Ale ...
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Sassa, Yasmine
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Masese, Titus
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Månsson, Martin, ...
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NATURVETENSKAP
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