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Akademický článek

Uniaxial stress effect on the electronic structure of quantum materials

Autor: Na Hyun Jo, Elena Gati, Heike Pfau

Publikováno v: Frontiers in Electronic Materials, Vol 4 (2024)

Uniaxial stress has proven to be a powerful experimental tuning parameter for effectively controlling lattice, charge, orbital, and spin degrees of freedom in quantum materials. In addition, its ability to manipulate the symmetry of materials has gar

Externí odkaz: https://doaj.org/article/a237690edbf2410cb29b2baf18ab207f

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Akademický článek

151Eu Mössbauer study of magnetic ordering in flux-grown ferromagnetic and antiferromagnetic forms of EuCd2As2

Autor: D. H. Ryan, Na Hyun Jo, Brinda Kuthanazhi, Sergey L. Bud’ko, Paul C. Canfield

Publikováno v: AIP Advances, Vol 14, Iss 2, Pp 025003-025003-5 (2024)

EuCd2As2 is a remarkably complex magnetic semimetal that may behave as a topological insulator or host two pairs of Weyl points, depending on the growth conditions and the final magnetic state. Both antiferromagnetic (AFM) and ferromagnetic (FM) form

Externí odkaz: https://doaj.org/article/a7e2bb8f8b994b44a7c1bd79231075f8

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Akademický článek

Visualizing band selective enhancement of quasiparticle lifetime in a metallic ferromagnet

Autor: Na Hyun Jo, Yun Wu, Thaís V. Trevisan, Lin-Lin Wang, Kyungchan Lee, Brinda Kuthanazhi, Benjamin Schrunk, S. L. Bud’ko, P. C. Canfield, P. P. Orth, Adam Kaminski

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)

The onset of a ferromagnetic order in metals is often accompanied by a drop in resistivity; however, its effect on electronic quasiparticles is less understood. Here the authors present spectroscopic evidence of quasiparticle lifetime enhancement bel

Externí odkaz: https://doaj.org/article/e0d652055e60498a949947610cdd7bf0

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Akademický článek

Discovery of a weak topological insulating state and van Hove singularity in triclinic RhBi2

Autor: Kyungchan Lee, Gunnar F. Lange, Lin-Lin Wang, Brinda Kuthanazhi, Thaís V. Trevisan, Na Hyun Jo, Benjamin Schrunk, Peter P. Orth, Robert-Jan Slager, Paul C. Canfield, Adam Kaminski

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)

Weak topological insulators (WTI) remain difficult to be observed in experiments. Here, the authors discover a WTI state in RhBi2, where the topological surface states with saddle points result in a van Hove singularity along the (100) direction near

Externí odkaz: https://doaj.org/article/5cc55a8a4b9a4dee92991438e5e6364b

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Akademický článek

Electron irradiation effects on superconductivity in PdTe_{2}: An application of a generalized Anderson theorem

Autor: E. I. Timmons, S. Teknowijoyo, M. Kończykowski, O. Cavani, M. A. Tanatar, Sunil Ghimire, Kyuil Cho, Yongbin Lee, Liqin Ke, Na Hyun Jo, S. L. Bud'ko, P. C. Canfield, Peter P. Orth, Mathias S. Scheurer, R. Prozorov

Publikováno v: Physical Review Research, Vol 2, Iss 2, p 023140 (2020)

Low-temperature (∼20 K) electron irradiation with 2.5 MeV relativistic electrons was used to study the effect of controlled nonmagnetic disorder on the normal and superconducting properties of the type-II Dirac semimetal PdTe_{2}. We report measure

Externí odkaz: https://doaj.org/article/30022510c62a4dc7b196c0324e72ecb6

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