A microscopic Kondo lattice model for the heavy fermion antiferromagnet CeIn3

被引：4

作者：

Simeth, W. ^{[1
,2
]}

Wang, Z. ^{[3
,4
,12
,13
]}

Ghioldi, E. A. ^{[3
]}

Fobes, D. M. ^{[5
]}

Podlesnyak, A. ^{[6
]}

Sung, N. H. ^{[5
]}

Bauer, E. D. ^{[5
]}

Lass, J. ^{[7
]}

Flury, S. ^{[1
,2
]}

Vonka, J. ^{[1
]}

Mazzone, D. G. ^{[7
]}

Niedermayer, C. ^{[7
]}

Nomura, Yusuke ^{[8
]}

Arita, Ryotaro ^{[8
,9
]}

Batista, C. D. ^{[3
,10
,11
]}

Ronning, F. ^{[5
]}

Janoschek, M. ^{[1
,2
,5
]}

机构：

[1] Paul Scherrer Inst, Lab Neutron & Muon Instrumentat, Villigen, Switzerland

[2] Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland

[3] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[4] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[5] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[6] Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA

[7] Paul Scherrer Inst, Lab Neutron Scattering & Imaging, Villigen, Switzerland

[8] RIKEN, Ctr Emergent Matter Sci, Wako, Saitama 3510198, Japan

[9] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[10] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA

[11] Oak Ridge Natl Lab, Shull Wollan Ctr, Oak Ridge, TN 37831 USA

[12] Zhejiang Univ, Ctr Correlated Matter, Hangzhou 310058, Peoples R China

[13] Zhejiang Univ, Sch Phys, Hangzhou 310058, Peoples R China

来源：

NATURE COMMUNICATIONS | 2023年 / 14卷 / 01期

关键词：

MAGNETIC EXCITATIONS; QUANTUM CRITICALITY; NEUTRON-SCATTERING; SYMMETRY-BREAKING; SPIN FLUCTUATIONS; SUPERCONDUCTIVITY; PRESSURE; STATE;

D O I：

10.1038/s41467-023-43947-z

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Electrons at the border of localization generate exotic states of matter across all classes of strongly correlated electron materials and many other quantum materials with emergent functionality. Heavy electron metals are a model example, in which magnetic interactions arise from the opposing limits of localized and itinerant electrons. This remarkable duality is intimately related to the emergence of a plethora of novel quantum matter states such as unconventional superconductivity, electronicnematic states, hidden order and most recently topological states of matter such as topological Kondo insulators and Kondo semimetals and putative chiral superconductors. The outstanding challenge is that the archetypal Kondo lattice model that captures the underlying electronic dichotomy is notoriously difficult to solve for real materials. Here we show, using the prototypical strongly-correlated antiferromagnet CeIn3, that a multi-orbital periodic Anderson model embedded with input from ab initio bandstructure calculations can be reduced to a simple Kondo-Heisenberg model, which captures the magnetic interactions quantitatively. We validate this tractable Hamiltonian via high-resolution neutron spectroscopy that reproduces accurately the magnetic soft modes in CeIn3, which are believed to mediate unconventional superconductivity. Our study paves the way for a quantitative understanding of metallic quantum states such as unconventional superconductivity.

引用

页数：10