Spectroscopic Evidence of Kondo-Induced Quasiquartet in CeRh2As2

被引:12
作者
Christovam, Denise S. [1 ]
Ferreira-Carvalho, Miguel [1 ]
Marino, Andrea [1 ]
Sundermann, Martin [1 ,2 ,3 ]
Takegami, Daisuke [1 ]
Melendez-Sans, Anna [1 ]
Tsuei, Ku Ding [4 ]
Hu, Zhiwei [1 ]
Roessler, Sahana [1 ]
Valvidares, Manuel [5 ]
Haverkort, Maurits W. [6 ]
Liu, Yu [7 ,9 ,10 ]
Bauer, Eric D. [7 ]
Tjeng, Liu Hao [1 ]
Zwicknagl, Gertrud [1 ,8 ]
Severing, Andrea [1 ,2 ]
机构
[1] Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany
[2] Univ Cologne, Inst Phys 2, Zulpicher Str 77, D-50937 Cologne, Germany
[3] Deutsch Elekt Synchrotron DESY, PETRA 3, Notkestr 85, D-22607 Hamburg, Germany
[4] Natl Synchrotron Radiat Res Ctr, 101 Hsin Ann Rd, Hsinchu 30077, Taiwan
[5] ALBA Synchrotron Light Source, Barcelona 08290, Spain
[6] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 19, D-69120 Heidelberg, Germany
[7] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[8] Tech Univ Carolo Wilhelmina Braunschweig, D-38106 Braunschweig, Germany
[9] Zhejiang Univ, Ctr Correlated Matter, Hangzhou 310058, Peoples R China
[10] Zhejiang Univ, Dept Phys, Hangzhou 310058, Peoples R China
关键词
PHOTOEMISSION; TRANSITION; CE;
D O I
10.1103/PhysRevLett.132.046401
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
CeRh2As2 is a new multiphase superconductor with strong suggestions for an additional itinerant multipolar ordered phase. The modeling of the low -temperature properties of this heavy-fermion compound requires a quartet Ce3 thorn crystal -field ground state. Here, we provide the evidence for the formation of such a quartet state using x-ray spectroscopy. Core -level photoelectron and x-ray absorption spectroscopy confirm the presence of Kondo hybridization in CeRh2As2. The temperature dependence of the linear dichroism unambiguously reveals the impact of Kondo physics for coupling the Kramer's doublets into an effective quasiquartet. Nonresonant inelastic x-ray scattering data find that the j Gamma-7i state with its lobes along the 110 direction of the tetragonal structure (xy orientation) contributes most to the multiorbital ground state of CeRh2As2.
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页数:7
相关论文
共 48 条
[1]   Possible multiorbital ground state in CeCu2Si2 [J].
Amorese, Andrea ;
Marino, Andrea ;
Sundermann, Martin ;
Chen, Kai ;
Hu, Zhiwei ;
Willers, Thomas ;
Choukani, Fadi ;
Ohresser, Philippe ;
Herrero-Martin, Javier ;
Agrestini, Stefano ;
Chen, Chien-Te ;
Lin, Hong-Ji ;
Haverkort, Maurits W. ;
Seiro, Silvia ;
Geibel, Christoph ;
Steglich, Frank ;
Tjeng, Liu Hao ;
Zwicknagl, Gertrud ;
Severing, Andrea .
PHYSICAL REVIEW B, 2020, 102 (24)
[2]  
aps, about us, DOI [10.1103/PhysRevLett.132.046401, DOI 10.1103/PHYSREVLETT.132.046401]
[3]   Design and performance of BOREAS, the beamline for resonant X-ray absorption and scattering experiments at the ALBA synchrotron light source [J].
Barla, Alessandro ;
Nicolas, Josep ;
Cocco, Daniele ;
Manuel Valvidares, Secundino ;
Herrero-Martin, Javier ;
Gargiani, Pierluigi ;
Moldes, Jairo ;
Ruget, Claude ;
Pellegrin, Eric ;
Ferrer, Salvador .
JOURNAL OF SYNCHROTRON RADIATION, 2016, 23 :1507-1517
[4]   Nonsymmorphic symmetry and field-driven odd-parity pairing in CeRh2As2 [J].
Cavanagh, D. C. ;
Shishidou, T. ;
Weinert, M. ;
Brydon, P. M. R. ;
Agterberg, Daniel F. .
PHYSICAL REVIEW B, 2022, 105 (02)
[5]  
Coleman P., 2007, HDB MAGNETISM ADV MA, V1, P95
[6]  
Cowan RD, 1981, The theory of atomic structure and spectra
[7]  
Flouquet J., 2005, PROGR LOW TEMPERATUR, V15, P139, DOI [DOI 10.1016/S0079-6417(05)15002-1, 10.1016/s0079-6417(05)15002-1]
[8]   ELECTRONIC-STRUCTURE OF CE AND ITS INTERMETALLIC COMPOUNDS [J].
FUGGLE, JC ;
HILLEBRECHT, FU ;
ZOLNIEREK, Z ;
LASSER, R ;
FREIBURG, C ;
GUNNARSSON, O ;
SCHONHAMMER, K .
PHYSICAL REVIEW B, 1983, 27 (12) :7330-7341
[9]   Strongly correlated electrons [J].
Fulde, Peter ;
Thalmeier, Peter ;
Zwicknagl, Gertrud .
SOLID STATE PHYSICS: ADVANCES IN RESEARCH AND APPLICATIONS, VOL 60, 2006, 60 :1-180
[10]   High multipole transitions in NIXS: Valence and hybridization in 4f systems [J].
Gordon, R. A. ;
Seidler, G. T. ;
Fister, T. T. ;
Haverkort, M. W. ;
Sawatzky, G. A. ;
Tanaka, A. ;
Sham, T. K. .
EPL, 2008, 81 (02)