15 citations · 65 across the 18 of their papers we have counts for
19 papers
Chirality-resolved spectroscopy of Caroli-de Gennes-Matricon states in multiband FeTeSe superconductors
T. Rõõm, A. Glezer Moshe, R. Nagarajan +4
We employ terahertz Faraday magneto-optical spectroscopy to probe the relaxation dynamics of quantized helical Caroli-de Gennes-Matricon (CdGM) states in epitaxial FeTeSe$_…
Superconducting PdTe Thin Film Via Topotactic Transformation, Toward Topological Superconductors
Hee Taek Yi, Min Ge, Renjie Xie +5
Topological superconductors (TSCs) hosting Majorana zero modes (MZMs) offer a pathway to fault-tolerant quantum computation. PdTe is a promising TSC candidate due to its topologica…
Interface-Enhanced Superconductivity in Ultrathin TiN Proximitized by Topological Insulators
Renjie Xie, Bowen Hao, Min Ge +11
High-quality topological insulator-superconductor (TI-SC) heterostructure with an atomically sharp and well-controlled interface is crucial for realizing topological superconductiv…
Terahertz magneto-photocurrents in the topological insulator BiSe probe its topological surface states
Chihun In, Genaro Bierhance, Deepti Jain +5
We study ultrafast magneto-photocurrents in a three-dimensional topological insulator. For this purpose, we excite (InBi)Se thin films with a femtosecond laser…
Efficient and affordable thermoelectric measurement setup using Arduino and LabVIEW for education and research
Alex J. Oh, Colby J. Stoddard, Craig Queenan +1
Thermoelectric materials can convert thermal energy into electricity, making them promising candidates for harvesting waste heat, an increasingly important challenge in the energy-…
Persistent Fluctuating Superconductivity and Planckian Dissipation in Fe(Te,Se)
Jonathan Stensberg, Pok Man Tam, Xiaoyu Yuan +11
Increasingly intricate phase diagrams in new classes of superconductors host fascinating interactions between superconductivity, diverse quantum phases, and quantum critical dynami…
Broad-band THz emission by Spin-to-Charge Conversion in Topological Material -- Ferromagnet Heterostructures
Xingyue Han, Xiong Yao, Tilak Ram Thapaliya +10
Terahertz spintronic devices combine ultrafast operation with low power consumption, making them strong candidates for next-generation memory technologies. In this study, we use ti…
Ubiquity of rotational symmetry breaking in superconducting films, from Fe(Te,Se)/BiTe to Nb, and the effect of measurement geometry
Debarghya Mallick, Hee Taek Yi, Xiaoyu Yuan +1
FeTeSe/BiTe heterostructure is a promising new platform in the journey toward topological quantum computation, considering that first, FeTeSe$_{0.5}…
Planckian scattering and parallel conduction channels in the iron chalcogenide superconductors FeTeSe
Ralph Romero, Hee Taek Yi, Seongshik Oh +1
The remarkable linear in temperature resistivity of the cuprate superconductors, which extends in some samples from to the melting temperature, remains unexplained. Although…
Single-layer magnet phase in intrinsic magnetic topological insulators, , far beyond the thermodynamic limit
Deepti Jain, Hee Taek Yi, Xiong Yao +6
The intrinsic magnetic topological insulator (IMTI) family has demonstrated magneto-topological properties dependent…
Universal Superconductivity in FeTe and All-Iron-Based Ferromagnetic Superconductor Heterostructures
Hee Taek Yi, Xiong Yao, Deepti Jain +10
Ferromagnetism (FM) and superconductivity (SC) are two of the most famous macroscopic quantum phenomena. However, nature normally does not allow SC and FM to coexist without signif…
Mystery of superconductivity in FeTe films and the role of neighboring layers
Xiong Yao, Hee Taek Yi, Deepti Jain +2
Since the discovery of superconductivity in the Fe(Te,Se) system, it has been a general consensus that the end member of FeTe is not superconducting. Nonetheless, in recent years,…
Atomic-Layer-Controlled Magnetic Orders in MnBi2Te4-Bi2Te3 Topological Heterostructures
Xiong Yao, Qirui Cui, Zengle Huang +8
The natural van der Waals superlattice MnBi2Te4-(Bi2Te3)m provides an optimal platform to combine topology and magnetism in one system with minimal structural disorder. Here, we sh…
Resilient Growth of Highly Crystalline Topological Insulator-Superconductor Heterostructure Enabled by Ex-situ Nitride Film
Renjie Xie, Min Ge, Shaozhu Xiao +8
Highly crystalline and easily feasible topological insulator-superconductor (TI-SC) heterostructures are crucial for the development of practical topological qubit devices. The opt…
Electrodynamics of the quantum anomalous Hall state in a magnetically doped topological insulator
Zhenisbek Tagay, Hee Taek Yi, Deepti Jain +2
Magnetically doped topological insulators have been extensively studied over the past decade as a material platform to exhibit quantum anomalous Hall effect. Most material realizat…
Magneto-optical effects of an artificially-layered ferromagnetic topological insulator with T of 160 K
Xingyue Han, Hee Taek Yi, Seongshik Oh +1
Magnetic topological insulator is a fertile platform to study the interplay between magnetism and topology. The unique electronic band structure can induce exotic transport and opt…
Signatures of Majorana Bound States in the Diffraction Patterns of Extended Superconductor-Topological Insulator-Superconductor Josephson Junctions
Guang Yue, Can Zhang, Erik D. Huemiller +13
In an extended superconductor-topological insulator-superconductor (S-TI-S) Josephson junction in a magnetic field, localized Majorana bound states (MBS) are predicted to exist at…
Coupled metamaterial-phonon terahertz range polaritons in a topological insulator
Sirak M. Mekonen, Deepti Jain, Seongshik Oh +1
We report terahertz time-domain spectroscopy (TDTS) experiments demonstrating strong light-matter coupling in a terahertz (THz) LC-metamaterial in which the phonon resonance of a t…
Observation of terahertz second harmonic generation from Dirac surface states in the topological insulator BiSe
Jonathan Stensberg, Xingyue Han, Zhuoliang Ni +6
We report the observation of second harmonic generation with high conversion efficiency in the terahertz regime from thin films of the topological insulator BiSe…