Universität zu Köln

Amorese, Andrea ORCID: 0000-0003-0271-0543, Khalyavin, Dmitry, Kummer, Kurt ORCID: 0000-0003-3044-7957, Brookes, Nicholas B., Ritter, Clemens ORCID: 0000-0003-3674-3378, Zaharko, Oksana, Larsen, Camilla Buhl ORCID: 0000-0002-5775-5258, Pavlosiuk, Orest ORCID: 0000-0001-5210-2664, Pikul, Adam P., Kaczorowski, Dariusz ORCID: 0000-0002-8513-7422, Gutmann, Matthias, Boothroyd, Andrew T., Severing, Andrea and Adroja, Devashibhai T. (2022). Metamagnetism and crystal-field splitting in pseudohexagonal CeRh3Si2. Phys. Rev. B, 105 (12). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

Full text not available from this repository.

Abstract

CeRh3Si2 has been reported to exhibit metamagnetic transitions below 5 K, a giant crystal field splitting, and anisotropic magnetic properties from single crystal magnetization and heat capacity measurements. Here we report results of neutron and x-ray scattering studies of the magnetic structure and crystal-field excitations to further understand the magnetism of this compound. Inelastic neutron scattering and resonant inelastic x-ray scattering reveal a Jz = 1/2 ground state for Ce when considering the crystallographic a direction as quantization axis, thus explaining the anisotropy of the static susceptibility. Furthermore, we find a total splitting of 78 meV for the J = 5/2 multiplet. The neutron diffraction study in zero field reveals that, on cooling from the paramagnetic state, the system first orders at TN1 = 4.7 K in a longitudinal spin density wave with ordered Ce moments along the b axis (i.e., the [0 1 0] crystal direction) and an incommensurate propagation vector k = (0, 0.43, 0). Below the lower-temperature transition TN2 = 4.48 K, the propagation vector locks to the commensurate value k = (0, 0.5, 0), with a so-called lock-in transition. Our neutron diffraction study in applied magnetic field H II b axis shows a change in the commensurate propagation vector and development of a ferromagnetic component at H = 3 kOe, followed by a series of transitions before the fully field-induced ferromagnetic phase is reached at H = 7 kOe. This explains the nature of the steps previously reported in field-dependent magnetization measurements. A very similar behavior is also observed for the H II [0 1 1] crystal direction.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Amorese, Andrea UNSPECIFIED orcid.org/0000-0003-0271-0543 UNSPECIFIED Khalyavin, Dmitry UNSPECIFIED UNSPECIFIED UNSPECIFIED Kummer, Kurt UNSPECIFIED orcid.org/0000-0003-3044-7957 UNSPECIFIED Brookes, Nicholas B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ritter, Clemens UNSPECIFIED orcid.org/0000-0003-3674-3378 UNSPECIFIED Zaharko, Oksana UNSPECIFIED UNSPECIFIED UNSPECIFIED Larsen, Camilla Buhl UNSPECIFIED orcid.org/0000-0002-5775-5258 UNSPECIFIED Pavlosiuk, Orest UNSPECIFIED orcid.org/0000-0001-5210-2664 UNSPECIFIED Pikul, Adam P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kaczorowski, Dariusz UNSPECIFIED orcid.org/0000-0002-8513-7422 UNSPECIFIED Gutmann, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED Boothroyd, Andrew T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Severing, Andrea UNSPECIFIED UNSPECIFIED UNSPECIFIED Adroja, Devashibhai T. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-692564
DOI:	10.1103/PhysRevB.105.125119
Journal or Publication Title:	Phys. Rev. B
Volume:	105
Number:	12
Date:	2022
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ENHANCED SPATIAL-RESOLUTION; COMPLEX PHASE-DIAGRAM; RAY CCD DETECTORS; MAGNETIC-STRUCTURE; BEHAVIOR; TRANSITION; SCATTERING Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/69256