Universität zu Köln

Caretta, Antonio, Dell'Angela, Martina ORCID: 0000-0003-1228-2458, Chuang, Yi-De, Kalashnikova, Alexandra M. ORCID: 0000-0001-5635-6186, Pisarev, Roman V., Bossini, Davide ORCID: 0000-0003-3537-497X, Hieke, Florian, Wurth, Wilfried, Casarin, Barbara, Ciprian, Roberta, Parmigiani, Fulvio, Wexler, Surge, Wray, L. Andrew and Malvestuto, Marco (2017). High-resolution resonant inelastic extreme ultraviolet scattering from orbital and spin excitations in a Heisenberg antiferromagnet. Phys. Rev. B, 96 (18). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

We report a high-resolution resonant inelastic extreme ultraviolet (EUV) scattering study of the quantum Heisenberg antiferromagnet KCoF3. By tuning the EUV photon energy to the cobalt M-23 edge, a complete set of low-energy 3d spin-orbital excitations is revealed. These low-lying electronic excitations are modeled using an extended multiplet-based mean-field calculation to identify the roles of lattice and magnetic degrees of freedom in modifying the resonant inelastic x-ray scattering (RIXS) spectral line shape. We have demonstrated that the temperature dependence of RIXS features upon the antiferromagnetic ordering transition enables us to probe the energetics of short-range spin correlations in this material.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Caretta, Antonio UNSPECIFIED UNSPECIFIED UNSPECIFIED Dell'Angela, Martina UNSPECIFIED orcid.org/0000-0003-1228-2458 UNSPECIFIED Chuang, Yi-De UNSPECIFIED UNSPECIFIED UNSPECIFIED Kalashnikova, Alexandra M. UNSPECIFIED orcid.org/0000-0001-5635-6186 UNSPECIFIED Pisarev, Roman V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bossini, Davide UNSPECIFIED orcid.org/0000-0003-3537-497X UNSPECIFIED Hieke, Florian UNSPECIFIED UNSPECIFIED UNSPECIFIED Wurth, Wilfried UNSPECIFIED UNSPECIFIED UNSPECIFIED Casarin, Barbara UNSPECIFIED UNSPECIFIED UNSPECIFIED Ciprian, Roberta UNSPECIFIED UNSPECIFIED UNSPECIFIED Parmigiani, Fulvio UNSPECIFIED UNSPECIFIED UNSPECIFIED Wexler, Surge UNSPECIFIED UNSPECIFIED UNSPECIFIED Wray, L. Andrew UNSPECIFIED UNSPECIFIED UNSPECIFIED Malvestuto, Marco UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-211169
DOI:	10.1103/PhysRevB.96.184420
Journal or Publication Title:	Phys. Rev. B
Volume:	96
Number:	18
Date:	2017
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 X-RAY-SCATTERING; KCOF3; KNIF3; SPECTRA Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/21116