期刊
REVIEWS OF MODERN PHYSICS
卷 92, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/RevModPhys.92.011002
关键词
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资金
- National Key R&D Program of the MOST of China [2016YFA0300200]
- National Science Foundation of China [11774307, 11874330]
- Science Challenge Project [TZ2016004]
- FWF [P 29296-N27]
- European Microkelvin Platform (H2020) [824109]
- U.S. Department of Energy, Division of Materials Sciences and Engineering
- NSF [DMR-1920740]
- Robert A. Welch Foundation [C-1411]
- MOST of Taiwan [108-2811-M-009-500]
- Anhui Initiative in Quantum Information Technologies
- Ulam Scholarship from the Center for Nonlinear Studies at Los Alamos National Laboratory
- Aspen Center for Physics (NSF) [PHY-1607611]
Angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM) have become indispensable tools in the study of correlated quantum materials. Both probe complementary aspects of the single-particle excitation spectrum. Taken together, ARPES and STM have the potential to explore properties of the electronic Green's function, a central object of many-body theory. This review explicates this potential with a focus on heavy-electron quantum criticality, especially the role of Kondo destruction. A discussion on how to probe the Kondo destruction effect across the quantum-critical point using ARPES and STM measurements is presented. Particular emphasis is placed on the question of how to distinguish between the signatures of the initial onset of hybridization-gap formation, which is the high-energy physics to be expected in all heavy-electron systems, and those of Kondo destruction, which characterizes the low-energy physics and, hence, the nature of quantum criticality. Recent progress and possible challenges in the experimental investigations are surveyed, the STM and ARPES spectra for several quantum-critical heavy-electron compounds are compared, and the prospects for further advances are outlined.
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