Index Catalog // MDR

Superconducting penetration depth through a Van Hove singularity: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>RuO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math> under uniaxial stress

Description/Abstract:: In the unconventional superconductor Sr2RuO4, uniaxial stress along the [100] direction tunes the Fermi level through a Van Hove singular...
Keyword:: Sr2RuO4, superconductivity, penetration depth, low-energy excitation
Resource Type:: Article
Author:: Eli Mueller, Yusuke Iguchi, Fabian Jerzembeck, Jorge O. Rodriguez, Marisa Romanelli, Edgar Abarca-Morales, Anastasios Markou, Naoki Kikugawa, Dmitry A. Sokolov, Gwansuk Oh, Clifford W. Hicks, Andrew P. Mackenzie, Yoshiteru Maeno, Vidya Madhavan, and Kathryn A. Moler
Journal:: Physical Review B
Date Uploaded:: 24/09/2024

Controllable suppression of the unconventional superconductivity in bulk and thin-film <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>RuO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math> via high-energy electron irradiation

Description/Abstract:: In bulk Sr2RuO4, the strong sensitivity of the superconducting transition temperature Tc to nonmagnetic impurities provides robust eviden...
Keyword:: Sr2RuO4, Bulk and film, irradiation effect
Resource Type:: Article
Author:: Jacob P. Ruf, Hilary M. L. Noad, Romain Grasset, Ludi Miao, Elina Zhakina, Philippa H. McGuinness, Hari P. Nair, Nathaniel J. Schreiber, Naoki Kikugawa, Dmitry Sokolov, Marcin Konczykowski, Darrell G. Schlom, Kyle M. Shen, and Andrew P. Mackenzie
Journal:: Physical Review Research
Date Uploaded:: 03/09/2024

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>T</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math> and the elastocaloric effect of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>RuO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math> under <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mo>〈</mml:mo><mml:mn>110</mml:mn><mml:mo>〉</mml:mo></mml:mrow></mml:math> uniaxial stress: No indications of transition splitting

Description/Abstract:: There is considerable evidence that the superconductivity of Sr2RuO4 has two components. Among this evidence is a jump in the shear elast...
Keyword:: Sr2RuO4, superconductivity, shear stress effect
Resource Type:: Article
Author:: Fabian Jerzembeck, You-Sheng Li, Grgur Palle, Zhenhai Hu, Mehdi Biderang, Naoki Kikugawa, Dmitry A. Sokolov, Sayak Ghosh, Brad J. Ramshaw, Thomas Scaffidi, Michael Nicklas, Jörg Schmalian, Andrew P. Mackenzie, and Clifford W. Hicks
Journal:: Physical Review B
Date Uploaded:: 30/08/2024

The Lorenz ratio as a guide to scattering contributions to transport in strongly correlated metals

Description/Abstract:: In many physical situations in which many-body assemblies exist at temperature T, a characteristic quantum-mechanical time scale of appro...
Keyword:: Lorenz ratio, electron–electron scattering, thermal transport, and transport in strongly correlated metals
Resource Type:: Article
Author:: Fei Sun, Simli Mishra, Ulrike Stockert, Ramzy Daou, Naoki Kikugawa, Robin S. Perry, Elena Hassinger, Sean A. Hartnoll, Andrew P. Mackenzie, and Veronika Sunko
Journal:: Proceedings of the National Academy of Sciences
Date Uploaded:: 30/08/2024

Exploring the Magnetic Phase Diagram and Hall Resistivity Suppression in Centrosymmetric GdOs<sub>2</sub>Si<sub>2</sub> Single Crystal

Description/Abstract:: Magnetic skyrmions were initially identified in non-centrosymmetric materials. However, recent theoretical advancements have suggested th...
Keyword:: GdOs2Si2, Hall resistivity, and Skyrmions
Resource Type:: Article
Author:: Hiroaki Hayashi, Moyu Kato, Taichi Terashima, Naoki Kikugawa, Hiroya Sakurai, Hiroyuki K. Yoshida, and Kazunari Yamaura
Journal:: Journal of the Physical Society of Japan
Date Uploaded:: 05/08/2024

Anomalous upper critical field in the quasicrystal superconductor Ta1.6Te

Description/Abstract:: Superconductivity in quasicrystals poses a new challenge in condensed matter physics. We measuredtheresistanceandacmagneticsusceptibility...
Keyword:: quasicrystal, superconductivity, and upper critical field
Resource Type:: Article
Author:: Taichi Terashima, Yuki Tokumoto, Kotaro Hamano, Takako Konoike, Naoki Kikugawa, and Keiichi Edagawa
Journal:: npj Quantum Materials
Date Uploaded:: 22/07/2024

Determination of the dynamic Young’s modulus of quantum materials in piezoactuator-driven uniaxial pressure cells using a low-frequency AC method

Description/Abstract:: We report on a new technique for measuring the dynamic Young’s modulus, E, of quantum materials at low temperatures as a function of stat...
Keyword:: Crystal lattices, Elastic modulus, Fermi surface, Phase transitions, Piezoelectric devices, Stress strain relations, and Viscoelasticity
Resource Type:: Article
Author:: Caitlin I. O’Neil, Zhenhai Hu, Naoki Kikugawa, Dmitry A. Sokolov, Andrew P. Mackenzie, Hilary M. L. Noad, and Elena Gati
Journal:: Review of Scientific Instruments
Date Uploaded:: 01/08/2024

Recent Progress of Floating-Zone Techniques for Bulk Single-Crystal Growth

Description/Abstract:: This review describes the recent progress of the floating-zone techniques for bulk single-crystal growth. The most crucial point of the c...
Keyword:: floating-zone technique, laser emission, optical lamps irradiation, and single-crystal growth
Resource Type:: Article
Author:: Naoki Kikugawa
Journal:: Crystals
Date Uploaded:: 17/06/2024

Negatively enhanced thermopower near a Van Hove singularity in electron-doped Sr2RuO4

Description/Abstract:: The layered perovskite Sr2RuO4 serves a model material of the two-dimensional (2D) Fermi liquid but also exhibits various emergent phenom...
Keyword:: Sr2RuO4, Non Fermi liquid, Lifshitz transition, Van Hove singularity, Thermopower
Resource Type:: Article
Author:: Rei Nishinakayama, Yoshiki J. Sato, Takayoshi Yamanaka, Yoshiteru Maeno, Hiroshi Yaguchi, Naoki Kikugawa, and Ryuji Okazaki
Journal:: Physical Review Research
Date Uploaded:: 03/06/2024

Anomalous Hall effect in the magnetic Weyl semimetal NdAlGe with plateaus observed at low temperatures

Description/Abstract:: In the RAl(Si,Ge) (R: lanthanides) family, both spatial inversion and time-reversal symmetries are broken. This may offer opportunities t...
Keyword:: Anomalous Hall effect, Topological material
Resource Type:: Article
Author:: Naoki Kikugawa, Shinya Uji, and Taichi Terashima
Journal:: PHYSICAL REVIEW B
Date Uploaded:: 26/01/2024

Superconducting penetration depth through a Van Hove singularity: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>RuO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math> under uniaxial stress

The Lorenz ratio as a guide to scattering contributions to transport in strongly correlated metals

Exploring the Magnetic Phase Diagram and Hall Resistivity Suppression in Centrosymmetric GdOs<sub>2</sub>Si<sub>2</sub> Single Crystal

Anomalous upper critical field in the quasicrystal superconductor Ta1.6Te

Determination of the dynamic Young’s modulus of quantum materials in piezoactuator-driven uniaxial pressure cells using a low-frequency AC method

Recent Progress of Floating-Zone Techniques for Bulk Single-Crystal Growth

Negatively enhanced thermopower near a Van Hove singularity in electron-doped Sr2RuO4

Anomalous Hall effect in the magnetic Weyl semimetal NdAlGe with plateaus observed at low temperatures

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