Intrinsic 2D Ferromagnetism in V5Se8 Epitaxial Thin Films
Nakano, M; Wang, Y; Yoshida, S; Matsuoka, H; Majima, Y; Ikeda, K; Hirata, Y; Takeda, Y; Wadati, H; Kohama, Y; Ohigashi, Y; Sakano, M; Ishizaka, K; Iwasa, Y
| HERO ID | 6308001 |
|---|---|
| In Press | No |
| Year | 2019 |
| Title | Intrinsic 2D Ferromagnetism in V5Se8 Epitaxial Thin Films |
| Authors | Nakano, M; Wang, Y; Yoshida, S; Matsuoka, H; Majima, Y; Ikeda, K; Hirata, Y; Takeda, Y; Wadati, H; Kohama, Y; Ohigashi, Y; Sakano, M; Ishizaka, K; Iwasa, Y |
| Journal | Nano Letters |
| Volume | 19 |
| Issue | 12 |
| Page Numbers | 8806-8810 |
| Abstract | The discoveries of intrinsic ferromagnetism in atomically thin van der Waals crystals have opened a new research field enabling fundamental studies on magnetism at two-dimensional (2D) limit as well as development of magnetic van der Waals heterostructures. Currently, a variety of 2D ferromagnetism has been explored mainly by mechanically exfoliating "originally ferromagnetic (FM)" van der Waals crystals, while a bottom-up approach by thin-film growth technique has demonstrated emergent 2D ferromagnetism in a variety of "originally non-FM" van der Waals materials. Here we demonstrate that V5Se8 epitaxial thin films grown by molecular-beam epitaxy exhibit emergent 2D ferromagnetism with intrinsic spin polarization of the V 3d electrons despite that the bulk counterpart is "originally antiferromagnetic". Moreover, thickness-dependence measurements reveal that this newly developed 2D ferromagnet could be classified as an itinerant 2D Heisenberg ferromagnet with weak magnetic anisotropy, broadening a lineup of 2D magnets to those potentially beneficial for future spintronics applications. |
| Doi | 10.1021/acs.nanolett.9b03614 |
| Pmid | 31714089 |
| Wosid | WOS:000502687500058 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |