Strong effects of uniaxial pressure and short-range correlations in Cr2Ge2Te6
Cr2Ge2Te6 is a quasi-two-dimensional semiconducting van der Waals ferromagnet down to the bilayer with great potential for technological applications. Engineering the critical temperature to achieve room-temperature applications is one of the critical next steps on this path. Here, we report high-re...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) Editorial |
| Sprache: | Englisch |
| Veröffentlicht: |
20 May 2022
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| In: |
Physical review research
Year: 2022, Jahrgang: 4, Heft: 2, Pages: 1-7 |
| ISSN: | 2643-1564 |
| DOI: | 10.1103/PhysRevResearch.4.L022040 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevResearch.4.L022040 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevResearch.4.L022040 
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| Verfasserangaben: | S. Spachmann, A. Elghandour, S. Selter, B. Büchner, S. Aswartham, and R. Klingeler |
| Zusammenfassung: | Cr2Ge2Te6 is a quasi-two-dimensional semiconducting van der Waals ferromagnet down to the bilayer with great potential for technological applications. Engineering the critical temperature to achieve room-temperature applications is one of the critical next steps on this path. Here, we report high-resolution capacitance dilatometry studies on Cr2Ge2Te6 single crystals which directly prove significant magnetoelastic coupling and provide quantitative values of the large uniaxial pressure effects on long-range magnetic order (∂TC/∂pc=24.7 K/GPa and ∂TC/∂pab=−15.6 K/GPa) derived from thermodynamic relations. Moderate in-plane strain is thus sufficient to strongly enhance ferromagnetism in Cr2Ge2Te6 up to room temperature. Moreover, unambiguous signs of short-range magnetic order up to 200 K are found. |
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| Beschreibung: | Im Titel sind die Zahlen "2" und "6" tiefgestellt Gesehen am 18.07.2022 |
| Beschreibung: | Online Resource |
| ISSN: | 2643-1564 |
| DOI: | 10.1103/PhysRevResearch.4.L022040 |