Pressure-Induced Phase Transitions in Bilayer La$_3$Ni$_2$O$_7$
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912084470530048 |
|---|---|
| author | Xu, Mingyu Jose, Greeshma C. Rutherford, Aya Wang, Haozhe Zhang, Stephen Cava, Robert J. Zhou, Haidong Bi, Wenli Xie, Weiwei |
| author_facet | Xu, Mingyu Jose, Greeshma C. Rutherford, Aya Wang, Haozhe Zhang, Stephen Cava, Robert J. Zhou, Haidong Bi, Wenli Xie, Weiwei |
| contents | La$_3$Ni$_2$O$_7$ exists in two polymorphs: an unconventional structure with alternating layers of single- and triple-layered nickel-oxygen octahedra, and a classical double-layered Ruddlesden-Popper phase. In this study, we report the growth of single crystals of classical double-layered La$_3$Ni$_2$O$_7$ using the floating zone method. Structural characterization under pressures up to 15.4 GPa reveals a gradual transition from orthorhombic to tetragonal symmetry near 12 GPa. Additionally, we present pressure and field-dependent electrical resistance measurements under pressures as high as 27.4 GPa, from which we construct a phase diagram. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_18840 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Pressure-Induced Phase Transitions in Bilayer La$_3$Ni$_2$O$_7$ Xu, Mingyu Jose, Greeshma C. Rutherford, Aya Wang, Haozhe Zhang, Stephen Cava, Robert J. Zhou, Haidong Bi, Wenli Xie, Weiwei Materials Science Superconductivity La$_3$Ni$_2$O$_7$ exists in two polymorphs: an unconventional structure with alternating layers of single- and triple-layered nickel-oxygen octahedra, and a classical double-layered Ruddlesden-Popper phase. In this study, we report the growth of single crystals of classical double-layered La$_3$Ni$_2$O$_7$ using the floating zone method. Structural characterization under pressures up to 15.4 GPa reveals a gradual transition from orthorhombic to tetragonal symmetry near 12 GPa. Additionally, we present pressure and field-dependent electrical resistance measurements under pressures as high as 27.4 GPa, from which we construct a phase diagram. |
| title | Pressure-Induced Phase Transitions in Bilayer La$_3$Ni$_2$O$_7$ |
| topic | Materials Science Superconductivity |
| url | https://arxiv.org/abs/2410.18840 |