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Gundogdu S, Clancy JP, Xu G, Zhao Y, Dube PA, Karalar TC, Cho BK, Lynn JW, Ramazanoglu M. Magnetic order and competition with superconductivity in (Ho-Er)Ni 2B 2C. MATERIALS RESEARCH EXPRESS 2020; 7:10.1088/2053-1591/abc998. [PMID: 37719937 PMCID: PMC10502616 DOI: 10.1088/2053-1591/abc998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
The rare earth magnetic order in pure and doped H o ( 1 - x ) E r x N i 2 B 2 C (x = 0, 0.25, 0.50, 0.75, 1) single crystal samples was investigated using magnetization and neutron diffraction measurements. Superconducting quaternary borocarbides, R N i 2 B 2 C where R = Ho, Er , are magnetic intermetallic superconductors with the transition temperatures~10 K in which long range magnetic order develops in the same temperature range and competes with superconductivity. Depending on the rare earth composition the coupling between superconductivity and magnetism creates several phases, ranging from a near reentrant superconductor with a mixture of commensurate and incommensurate antiferromagnetism to an incommensurate antiferromagnetic spin modulation with a weak ferromagnetic component. All of these phases coexist with superconductivity. RKKY magnetic interactions are used to describe the magnetic orders in the pure compounds. However, the doping of Er on Ho sites which have two strong magnetic moments with two different easy directions creates new and complicated magnetic modulations with possible local disorder effects. One fascinating effect is the development of an induced magnetic state resembling the pure and doped R2CuO4 cuprate with R = Nd and Pr.
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Affiliation(s)
- Suleyman Gundogdu
- Physics Engineering Department, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - J Patrick Clancy
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1 Canada
| | - Guangyong Xu
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States of America
| | - Yang Zhao
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States of America
| | - Paul A Dube
- Brockhouse Institute for Materials Research, Hamilton, ON L8S 4M1, Canada
| | - Tufan C Karalar
- Electronics and Communication Engineering Department, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Beong Ki Cho
- Gwangju Institute of Science and Technology, GIST, Republic of Korea
| | - Jeffrey W Lynn
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States of America
| | - M Ramazanoglu
- Physics Engineering Department, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
- Brockhouse Institute for Materials Research, Hamilton, ON L8S 4M1, Canada
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