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Quasiparticle Interference (QPI) imaging is a powerful tool for the study of the low energy electronic structure of quantum materials. However, the measurement of QPI by scanning tunneling microscopy (STM) is restricted to surfaces and is…

Strongly Correlated Electrons · Physics 2024-04-15 Luke C. Rhodes , Weronika Osmolska , Carolina A. Marques , Peter Wahl

The quasiparticle interference (QPI) technique is a powerful tool that allows to uncover the structure and properties of electronic structure of a material combined with scattering properties of defects at surfaces. Recently this technique…

Mesoscale and Nanoscale Physics · Physics 2020-06-11 Philipp Rüßmann , Phivos Mavropoulos , Stefan Blügel

Quasiparticle interference (QPI) imaging is well established to study the low-energy electronic structure in strongly correlated electron materials with unrivalled energy resolution. Yet, being a surface-sensitive technique, the…

Quasi-particle interference (QPI) is a powerful tool to characterize the symmetry of the superconducting order parameter in unconventional superconductors, by mapping the spatial dependence of elastic tunneling of electrons between the tip…

Quasiparticle interference (QPI) in spectroscopic imaging scanning tunneling microscopy provides a powerful method to detect orbital band structures and orbital ordering patterns in transition metal oxides. We use the $T$-matrix formalism…

Strongly Correlated Electrons · Physics 2010-05-05 Wei-Cheng Lee , D. P. Arovas , Congjun Wu

We show that quasiparticle interference (QPI) due to omnipresent weak impurities and probed by Fourier transform scanning tunneling microscopy and spectroscopy acts as a direct experimental probe of bulk odd-frequency superconducting…

Superconductivity · Physics 2023-01-11 Debmalya Chakraborty , Annica M. Black-Schaffer

We systematically calculate quasiparticle interference (QPI) signatures for the whole phase diagram of iron-based superconductors. Impurities inherent in the sample together with ordered phases lead to distinct features in the QPI images…

Superconductivity · Physics 2015-05-19 A. Akbari , J. Knolle , I. Eremin , R. Moessner

We show that characteristics of the electron's form factor in two-dimensional materials are observable in quasiparticle interference (QPI) spectrum. We study QPI in twisted bilayer graphene using real-space tight-binding calculations…

Mesoscale and Nanoscale Physics · Physics 2025-09-16 D. -H. -Minh Nguyen , Francisco Guinea , Dario Bercioux

A physical system exposes to us in a real space, while its description often refers to its reciprocal momentum space. A connection between them can be established by exploring patterns of quasiparticles interference (QPI), which is…

Mesoscale and Nanoscale Physics · Physics 2019-11-13 Dan-Bo Zhang , Qiang Han , Z. D. Wang

In the presence of spin-orbit coupling, electron scattering off impurities depends on both spin and orbital angular momentum of electrons -- spin-orbit scattering. Although some transport properties are subject to spin-orbit scattering,…

Mesoscale and Nanoscale Physics · Physics 2017-03-21 Y. Kohsaka , T. Machida , K. Iwaya , M. Kanou , T. Hanaguri , T. Sasagawa

Quasiparticle interference has been used frequently for the purpose of unraveling the electronic states in the vicinity of the Fermi level as well as the nature of superconducting gap in the unconventional superconductors. Using the…

Superconductivity · Physics 2025-03-04 Garima Goyal , Dheeraj Kumar Singh

Moir\'e lattices are a general feature of bilayer structures, where an additional periodic superstructure is generated by either lattice mismatch or from a twist angle. They have been shown to stabilise new ground states, including…

Strongly Correlated Electrons · Physics 2025-03-17 Luke C. Rhodes , Dylan C. Houston , Olivia R. Armitage , Peter Wahl

In this paper we explore the behavior of the quasi-particle interference pattern (QPI) of scanning tunneling microscopy as a function of temperature, $T$. After insuring a minimal consistency with photoemission, we find that the QPI pattern…

Superconductivity · Physics 2009-10-19 Dan Wulin , Yan He , Chih-Chun Chien , Dirk K. Morr , K. Levin

Quasiparticle interference (QPI) of the electronic states has been widely applied in scanning tunneling microscopy (STM) to analyze the electronic band structure of materials. Single-defect induced QPI reveals defect-dependent interaction…

Materials Science · Physics 2020-07-08 Wenhao Zhang , Kunliang Bu , Fangzhou Ai , Zongxiu Wu , Ying Fei , Yuan Zheng , Jianhua Du , Minghu Fang , Yi Yin

Quasiparticle interference (QPI) provides a wealth of information relating to the electronic structure of a material. However, it is often assumed that this information is constrained to two-dimensional electronic states. Here, we show that…

Superconductivity · Physics 2019-11-27 Luke C. Rhodes , Matthew D. Watson , Timur K. Kim , Matthias Eschrig

Scanning tunneling microscopy (STM) is a notoriously slow technique; Data-recording is serial which renders complex measurement tasks, such as quasiparticle interference (QPI) mapping, impractical. However, QPI would provide insight into…

Other Condensed Matter · Physics 2020-05-06 Jens Oppliger , Fabian Donat Natterer

Quasiparticle interference (QPI) imaging is a powerful tool for probing electronic structures in quantum materials, but extracting the single-scatterer QPI pattern (i.e., the kernel) from a multi-scatterer image remains a fundamentally…

Machine Learning · Computer Science 2026-02-16 Yingshuai Ji , Haomin Zhuang , Matthew Toole , James McKenzie , Xiaolong Liu , Xiangliang Zhang

We propose an explanation for the electronic nematic state observed recently in parent iron-based superconductors [T.-M. Chuang et al., Science 327, 181 (2010)]. We argue that the quasi-one-dimensional nanostructure identified in the…

Superconductivity · Physics 2015-05-18 J. Knolle , I. Eremin , A. Akbari , R. Moessner

Unlike charge and spin, the orbital degree of freedom of electrons in transition metal oxides is difficult to detect. We present the theoretical study of a new detection method in metallic orbitally active systems by analyzing the…

Strongly Correlated Electrons · Physics 2009-10-23 Wei-Cheng Lee , Congjun Wu

The measurement of quasiparticle scattering patterns on material surfaces using scanning tunneling microscopy (STM) is now an established technique for accessing the momentum-resolved electronic band structure of solids. However, since…

Strongly Correlated Electrons · Physics 2025-09-03 Xinze Yang , Alexander F. Kemper , Adrian Gozar , Eduardo H. da Silva Neto
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