Antiferromagnetism and metamagnetism in ErFeCuGe4O12
Polycrystalline ErFeCuGe4O12 has been prepared in a solid-state reaction. It adopts a tetragonal crystal structure; space group P4/nbm with a = 9.6416(1), c = 4.7532(1) at room temperature. The Er3+ cations are in square-antiprismatic coordination and the Fe3+ and Cu2+ cations are disordered over on...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Published: |
Elsevier
2018
|
| _version_ | 1826288315464155136 |
|---|---|
| author | Xu, D Avdeev, M Battle, P |
| author_facet | Xu, D Avdeev, M Battle, P |
| author_sort | Xu, D |
| collection | OXFORD |
| description | Polycrystalline ErFeCuGe4O12 has been prepared in a solid-state reaction. It adopts a tetragonal crystal structure; space group P4/nbm with a = 9.6416(1), c = 4.7532(1) at room temperature. The Er3+ cations are in square-antiprismatic coordination and the Fe3+ and Cu2+ cations are disordered over one six-coordinate site. The magnetic moments of the three cations adopt an antiferromagnetic arrangement on cooling below 20 K in H = 0 kOe. The magnetic structure consists of ferromagnetic (001) sheets with the spin direction in neighbouring sheets alternating between [001] and [00 ̅ At 5 K the ordered moment of Er3+ was determined by neutron diffraction to be 7.90(3) µB and the mean moment of Fe3+ and Cu2+ was 2.43(2) µB. The magnetic structure is unchanged in an applied field of 10 kOe but in fields ≥ 20 kOe the compound begins a metamagnetic transition to a ferromagnetic structure with all atomic moments aligned along [001]. |
| first_indexed | 2024-03-07T02:11:51Z |
| format | Journal article |
| id | oxford-uuid:a0ef197b-0d93-4935-9c2f-5056a8510487 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:11:51Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:a0ef197b-0d93-4935-9c2f-5056a85104872022-03-27T02:09:11ZAntiferromagnetism and metamagnetism in ErFeCuGe4O12Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a0ef197b-0d93-4935-9c2f-5056a8510487Symplectic Elements at OxfordElsevier2018Xu, DAvdeev, MBattle, PPolycrystalline ErFeCuGe4O12 has been prepared in a solid-state reaction. It adopts a tetragonal crystal structure; space group P4/nbm with a = 9.6416(1), c = 4.7532(1) at room temperature. The Er3+ cations are in square-antiprismatic coordination and the Fe3+ and Cu2+ cations are disordered over one six-coordinate site. The magnetic moments of the three cations adopt an antiferromagnetic arrangement on cooling below 20 K in H = 0 kOe. The magnetic structure consists of ferromagnetic (001) sheets with the spin direction in neighbouring sheets alternating between [001] and [00 ̅ At 5 K the ordered moment of Er3+ was determined by neutron diffraction to be 7.90(3) µB and the mean moment of Fe3+ and Cu2+ was 2.43(2) µB. The magnetic structure is unchanged in an applied field of 10 kOe but in fields ≥ 20 kOe the compound begins a metamagnetic transition to a ferromagnetic structure with all atomic moments aligned along [001]. |
| spellingShingle | Xu, D Avdeev, M Battle, P Antiferromagnetism and metamagnetism in ErFeCuGe4O12 |
| title | Antiferromagnetism and metamagnetism in ErFeCuGe4O12 |
| title_full | Antiferromagnetism and metamagnetism in ErFeCuGe4O12 |
| title_fullStr | Antiferromagnetism and metamagnetism in ErFeCuGe4O12 |
| title_full_unstemmed | Antiferromagnetism and metamagnetism in ErFeCuGe4O12 |
| title_short | Antiferromagnetism and metamagnetism in ErFeCuGe4O12 |
| title_sort | antiferromagnetism and metamagnetism in erfecuge4o12 |
| work_keys_str_mv | AT xud antiferromagnetismandmetamagnetisminerfecuge4o12 AT avdeevm antiferromagnetismandmetamagnetisminerfecuge4o12 AT battlep antiferromagnetismandmetamagnetisminerfecuge4o12 |