PhD Mid-term Seminar Series: Tuning the magnetic properties of 2D layered MPS3 compounds through molecular intercalation
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PhD Mid-term Seminar Series: Tuning the magnetic properties of 2D layered MPS3 compounds through molecular intercalation
CIC nanoGUNE Seminars
- Speaker
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Daniel Tezze, Pre-doctoral Researcher, Nanodevices, CIC nanoGUNE
- When
-
2022/09/12
13:00
- Place
- nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian
- Add to calendar
-
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**Tuning the magnetic properties of 2D layered MPS3 compounds through
molecular intercalation**
Daniel Tezze
Pre-doctoral Researcher, Nanodevices, CIC nanoGUNE
Intercalation of 2D layered materials is a powerful fabrication and processing
tool to modify their optical, electronic and magnetic properties. In this
project, we explored two main intercalation strategies (electrochemical and
solution-based intercalation) to synthesize hybrid organic-MPS3 2D
superlattices with tuned magnetic properties. In particular, NiPS3 and MnPS3
host materials were successfully intercalated with guest alkylammonium or
metallocenium ions. Upon intercalation, the antiferromagnetism of the pristine
compounds is suppressed. Instead, TBA0.25NiPS3 and [Co(Cp)2]0.25NiPS3 display
ferrimagnetism below 78 K and 98 K and a hysteretic behavior with non-zero
remanence and coercivity. Moreover, four different alkylammonium-intercalated
MnPS3 compounds (GxMn1-x/2PS3 with G = TMA, TEA, TBA, CTA) show different
magnetic properties, depending on the specific molecular guest specie. Our
results indicate that molecular intercalation is a promising route to tailor
the magnetic properties of layered materials.