2k citations · 5.3k across the 15 of their papers we have counts for
15 papers
Quantum electron liquid and its possible phase transition
Sunghun Kim, Joonho Bang, Chan-young Lim +14
Purely quantum electron systems exhibit intriguing correlated electronic phases by virtue of quantum fluctuations in addition to electron-electron interactions. To realize such qua…
Study of Yu-Shiba-Rusinov bound states by tuning the electron density at the Fermi energy
Sang Yong Song, Yoon Sung Park, Yongchan Jeong +3
Magnetic atoms can break the Cooper pairs of superconductors, leading to the formation of Yu-Shiba-Rusinov (YSR) bound states inside superconducting gaps. Theory predicts that the…
Controllable pn junctions in threedimensional Dirac semimetal CdAs nanowires
Janice Ruth Bayogan, Kidong Park, Zhuo Bin Siu +11
We demonstrate a controllable pn junction in a threedimensional Dirac semimetal (DSM) CdAs nanowire with two recessed bottom gates. The device exhibits four different…
Visualization of local magnetic moments emerging from impurities in the Hund's metal states of FeSe
Sang Yong Song, J. H. J. Martiny, A. Kreisel +2
Understanding the origin of the magnetism of high temperature superconductors is crucial for establishing their unconventional pairing mechanism. Recently, theory predicts that FeS…
Quantum dots formed in three-dimensional Dirac semimetal CdAs nanowires
Minkyung Jung, Kenji Yoshida, Kidong Park +9
We demonstrate quantum dot (QD) formation in three-dimensional Dirac semimetal CdAs nanowires using two electrostatically tuned pn junctions with a gate and magnetic…
Surface reconstruction and charge modulation in BaFe2As2 superconducting film
S. Kim, S. Yi, M. Oh +13
Whether or not epitaxially grown superconducting films have the same bulk-like superconducting properties is an important concern. We report the structure and the electronic proper…
Tip-Induced Molecule Anchoring in Ni-Phthalocyanine on Au(111) Substrate
Yong Chan Jeong, Sang Yong Song, Youngjae Kim +3
Pinning single molecules at desired positions can provide opportunities to fabricate bottom-up designed molecular machines. Using the combined approach of scanning tunneling micros…
Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
Stevan Nadj-Perge, Ilya K. Drozdov, Jian Li +6
Majorana fermions are predicted to localize at the edge of a topological superconductor, a state of matter that can form when a ferromagnetic system is placed in proximity to a con…
Design and performance of an ultra-high vacuum scanning tunneling microscope operating at dilution refrigerator temperatures and high magnetic fields
Shashank Misra, Brian B. Zhou, Ilya K. Drozdov +5
We describe the construction and performance of a scanning tunneling microscope (STM) capable of taking maps of the tunneling density of states with sub-atomic spatial resolution a…
Quasiparticle Interference on the Surface of Topological Crystalline Insulator Pb(1-x)Sn(x)Se
A. Gyenis, I. K. Drozdov, S. Nadj-Perge +6
Topological crystalline insulators represent a novel topological phase of matter in which the surface states are protected by discrete point group-symmetries of the underlying latt…
Spatial Fluctuations of Helical Dirac Fermions on the Surface of Topological Insulators
Haim Beidenkopf, Pedram Roushan, Jungpil Seo +5
Surfaces of topological insulators host a new class of states with Dirac dispersion and helical spin texture. Potential quantum computing and spintronic applications using these st…
Transmission of topological surface states through surface barriers
Jungpil Seo, Pedram Roushan, Haim Beidenkopf +3
Topological surface states are a class of novel electronic states that are of potential interest in quantum computing or spintronic applications. Unlike conventional two-dimensiona…
The development of ferromagnetism in the doped topological insulator Bi2-xMnxTe3
Y. S. Hor, P. Roushan, H. Beidenkopf +11
The development of ferromagnetism in Mn-doped Bi2Te3 is characterized through measurements on a series of single crystals with different Mn content. Scanning tunneling microscopy a…
Superconductivity in CuxBi2Se3 and its implications for pairing in the undoped topological insulator
Y. S. Hor, A. J. Williams, J. G. Checkelsky +7
Bi2Se3 is one of a handful of known topological insulators. Here we show that copper intercalation in the van der Waals gaps between the Bi2Se3 layers, yielding an electron concent…
Topological Surface States Protected From Backscattering by Chiral Spin Texture
Pedram Roushan, Jungpil Seo, Colin V. Parker +7
Topological insulators are a new class of insulators in which a bulk gap for electronic excitations is generated by strong spin orbit coupling. These novel materials are distinguis…