Structural instability at the In-terminated surface of the heavy-fermion superconductor CeIrIn5

被引：4

作者：

Tarasov, Artem V. ^{[1
]}

Mende, Max ^{[2
]}

Ali, Khadiza ^{[3
]}

Poelchen, Georg ^{[2
,4
]}

Schulz, Susanne ^{[2
]}

Vilkov, Oleg Yu. ^{[1
]}

Bokai, Kirill A. ^{[1
]}

Muntwiler, Matthias ^{[5
]}

Mandic, Vladislav ^{[6
]}

Laubschat, Clemens ^{[2
]}

Kliemt, Kristin ^{[6
]}

Krellner, Cornelius ^{[6
]}

Vyalikh, Denis V. ^{[7
,8
]}

Usachov, Dmitry Yu. ^{[1
]}

机构：

[1] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

[2] Tech Univ Dresden, Inst Festkorper & Materialphys, D-01069 Dresden, Germany

[3] Chalmers Univ Technol, Dept Microtechnol & Nanosci, Chalmersplatsen 4, S-41296 Gothenburg, Sweden

[4] European Synchrotron Radiat Facil ESRF, 71 Ave Martyrs, F-38043 Grenoble, France

[5] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

[6] Goethe Univ Frankfurt, Phys Inst, Kristall & Materiallabor, Max-von-Laue Str 1, D-60438 Frankfurt, Germany

[7] IKERBASQUE, Basque Fdn Sci, Bilbao 48011, Spain

[8] Donostia Int Phys Ctr DIPC, Donostia San Sebastian 20018, Spain

来源：

SURFACES AND INTERFACES | 2022年 / 32卷

基金：

瑞典研究理事会;

关键词：

Surface state; Electronic structure; Atomic structure; Heavy fermion; Ab initio calculations; Photoelectron diffraction; SPIN-ORBIT; CRYSTAL;

D O I：

10.1016/j.surfin.2022.102126

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Driven by reconstruction and relaxation, by the appearance of surface electron states and resonances, the surface properties and related temperature scales of strongly correlated f-materials may differ dramatically from those in the bulk. Applying low energy electron and photoelectron diffraction techniques, momentum-resolved photoelectron spectroscopy and ab initio calculations, we demonstrate that the In-terminated surface of the heavyfermion superconductor CeIrIn5 experiences a reconstruction with a (root 2v x root 2)R45 degrees ordered structure. The latter appears due to the displacement of In atoms with respect to the Ir sublattice. We show that the electronic structure and related properties of the reconstructed In surface differ remarkably from the unreconstructed case. Namely, the predicted surface states with Rashba-type spin splitting do not appear. Our results suggest surface instabilities in similar quasi-two-dimensional strongly correlated f-materials, for which surface reconstructions can be unveiled by means of diffraction techniques.

引用

页数：6

共 33 条

[1] Visualizing heavy fermions emerging in a quantum critical Kondo lattice [J].

Aynajian, Pegor ;

da Silva Neto, Eduardo H. ;

Gyenis, Andras ;

Baumbach, Ryan E. ;

Thompson, J. D. ;

Fisk, Zachary ;

Bauer, Eric D. ;

Yazdani, Ali .

NATURE, 2012, 486 (7402) :201-206

[2] WIEN2k: An APW+lo program for calculating the properties of solids [J].

Blaha, Peter ;

Schwarz, Karlheinz ;

Tran, Fabien ;

Laskowski, Robert ;

Madsen, Georg K. H. ;

Marks, Laurence D. .

JOURNAL OF CHEMICAL PHYSICS, 2020, 152 (07)

[3] Multiple scattering of electrons in solids and molecules: A cluster-model approach [J].

de Abajo, FJG ;

Van Hove, MA ;

Fadley, CS .

PHYSICAL REVIEW B, 2001, 63 (07)

[4] Strong spin-orbit coupling in the noncentrosymmetric Kondo lattice [J].

Generalov, A. ;

Falke, J. ;

Nechaev, I. A. ;

Otrokov, M. M. ;

Guettler, M. ;

Chikina, A. ;

Kliemt, K. ;

Seiro, S. ;

Kummer, K. ;

Danzenbaecher, S. ;

Usachov, D. ;

Kim, T. K. ;

Dudin, P. ;

Chulkov, E. V. ;

Laubschat, C. ;

Geibel, C. ;

Krellner, C. ;

Vyalikh, D. V. .

PHYSICAL REVIEW B, 2018, 98 (11)

[5] Spin Orientation of Two-Dimensional Electrons Driven by Temperature-Tunable Competition of Spin-Orbit and Exchange-Magnetic Interactions [J].

Generalov, Alexander ;

Otrokov, Mikhail M. ;

Chikina, Alla ;

Kliemt, Kristin ;

Kummer, Kurt ;

Hoeppner, Marc ;

Guettler, Monika ;

Seiro, Silvia ;

Fedorov, Alexander ;

Schulz, Susanne ;

Danzenbaecher, Steffen ;

Chulkov, Evgueni V. ;

Geibel, Christoph ;

Laubschat, Clemens ;

Dudin, Pavel ;

Hoesch, Moritz ;

Kim, Timur ;

Radovic, Milan ;

Shi, Ming ;

Plumb, Nicholas C. ;

Krellner, Cornelius ;

Vyalikh, Denis V. .

NANO LETTERS, 2017, 17 (02) :811-820

[6] Robust and tunable itinerant ferromagnetism at the silicon surface of the antiferromagnet GdRh2Si2 [J].

Guettler, M. ;

Generalov, A. ;

Otrokov, M. M. ;

Kummer, K. ;

Kliemt, K. ;

Fedorov, A. ;

Chikina, A. ;

Danzenbaecher, S. ;

Schulz, S. ;

Chulkov, E. V. ;

Koroteev, Yu. M. ;

Caroca-Canales, N. ;

Shi, M. ;

Radovic, M. ;

Geibel, C. ;

Laubschat, C. ;

Dudin, P. ;

Kim, T. K. ;

Hoesch, M. ;

Krellner, C. ;

Vyalikh, D. V. .

SCIENTIFIC REPORTS, 2016, 6

[7] Pressure-induced superconductivity in quasi-2D CeRhIn5 [J].

Hegger, H ;

Petrovic, C ;

Moshopoulou, EG ;

Hundley, MF ;

Sarrao, JL ;

Fisk, Z ;

Thompson, JD .

PHYSICAL REVIEW LETTERS, 2000, 84 (21) :4986-4989

[8] Full-potential nonorthogonal local-orbital minimum-basis band-structure scheme [J].

Koepernik, K ;

Eschrig, H .

PHYSICAL REVIEW B, 1999, 59 (03) :1743-1757

[9] Unfolding First-Principles Band Structures [J].

Ku, Wei ;

Berlijn, Tom ;

Lee, Chi-Cheng .

PHYSICAL REVIEW LETTERS, 2010, 104 (21)

[10] Intermediate valence in Yb compounds probed by 4 f photoemission and resonant inelastic x-ray scattering [J].

Kummer, K. ;

Kucherenko, Yu. ;

Danzenbaecher, S. ;

Krellner, C. ;

Geibel, C. ;

Holder, M. G. ;

Bekenov, L. V. ;

Muro, T. ;

Kato, Y. ;

Kinoshita, T. ;

Huotari, S. ;

Simonelli, L. ;

Molodtsov, S. L. ;

Laubschat, C. ;

Vyalikh, D. V. .

PHYSICAL REVIEW B, 2011, 84 (24)

← 1 2 3 4 →