Tootfinder

Artificial Symmetry Breaking by Self-Interaction Error
Lin Hou, Cody Woods, Yanyong Wang, Jorge Vega Bazantes, Ruiqi Zhang, Shimin Zhang, Erik Alfredo Perez Caro, Yuan Ping, Timo Lebeda, Jianwei Sun
https://arxiv.org/abs/2506.20662

Artificial Symmetry Breaking by Self-Interaction Error
Symmetry is a cornerstone of quantum mechanics and materials theory, underpinning the classification of electronic states and the emergence of complex phenomena such as magnetism and superconductivity. While symmetry breaking in density functional theory can reveal strong electron correlation, it may also arise spuriously from self-interaction error (SIE), an intrinsic flaw in many approximate exchange-correlation functionals. In this work, we present clear evidence that SIE alone can induce ar…

A direct dispersive signature of Pauli spin blockade
Simon Svab, Rafael S. Eggli, Taras Patlatiuk, Miguel J. Carballido. Pierre Chevalier Kwon, Dominique A. Tr\"ussel, Ang Li, Erik P. A. M. Bakkers, Andreas V. Kuhlmann, Dominik M. Zumb\"uhl
https://arxiv.org/abs/2506.20509

A direct dispersive signature of Pauli spin blockade
Pauli Spin Blockade (PSB) is a key paradigm in semiconductor nanostructures and gives access to the spin physics. We report the direct observation of PSB with gate-dispersive reflectometry on double quantum dots with source-drain bias. The reservoir charge transitions are strongly modulated, turning on and off when entering and leaving the blockaded region, consistent with a simple model. Seen with holes in Ge and Si, the effects are enhanced with larger bias voltage and suppressed by magnetic …

A friend of mine was lamenting that they felt my partner and I do a lot for them and they don't evenly reciprocate so all I can really do is reply to them:
"From each according to their abilities, to each according to their needs."
And hope that sparks something.

Superconductivity in kagome metals due to soft loop-current fluctuations
Daniel J. Schultz, Grgur Palle, Yong Baek Kim, Rafael M. Fernandes, J\"org Schmalian
https://arxiv.org/abs/2507.16892

Superconductivity in kagome metals due to soft loop-current fluctuations
We demonstrate that soft fluctuations of translation symmetry-breaking loop currents provide a mechanism for unconventional superconductivity in kagome metals that naturally addresses the multiple superconducting phases observed under pressure. Focusing on the rich multi-orbital character of these systems, we show that loop currents involving both vanadium and antimony orbitals generate low-energy collective modes that couple efficiently to electrons near the Fermi surface and mediate attractiv…

From College Standout to 2025 Secondary Phenom https://insidethestar.com/from-college-standout-to-2025-secondary-phenom

TOC-UCO: a comprehensive repository of tabular ordinal classification datasets
Rafael Ayll\'on-Gavil\'an, David Guijo-Rubio, Antonio Manuel G\'omez-Orellana, David Guijo-Rubio, Francisco B\'erchez-Moreno, V\'ictor Manuel Vargas-Yun, Pedro A. Guti\'errez
https://arxiv.org/abs/2507.17348

TOC-UCO: a comprehensive repository of tabular ordinal classification datasets
An ordinal classification (OC) problem corresponds to a special type of classification characterised by the presence of a natural order relationship among the classes. This type of problem can be found in a number of real-world applications, motivating the design and development of many ordinal methodologies over the last years. However, it is important to highlight that the development of the OC field suffers from one main disadvantage: the lack of a comprehensive set of datasets on which nove…

High Pressure Growth of Transition-Metal Monosilicide RhGe Single Crystals
Xiangjiang Dong, Bowen Zhang, Xubin Ye, Peng Wei, Lie Lian, Ning Sun, Youwen Long, Shangjie Tian, Shouguo Wang, Hechang Lei, Runze Yu
https://arxiv.org/abs/2506.19252

High Pressure Growth of Transition-Metal Monosilicide RhGe Single Crystals
Transition-metal monosilicide RhGe has been reported to exhibit weak itinerant ferromagnetism, superconductivity, and topological properties. In this study, we report the high-pressure growth of high-quality RhGe single crystals up to millimeter size using flux method. Transport measurements reveal the metallic behavior of RhGe between 2-300 K with Fermi liquid behavior at low temperature region. However, no superconductivity was observed with variations in Ge composition. Magnetic characteriza…

Superconductivity from dual-surface carriers in rhombohedral graphene
Manish Kumar, Derek Waleffe, Anna Okounkova, Raveel Tejani, Vo Tien Phong, Kenji Watanabe, Takashi Taniguchi, Cyprian Lewandowski, Joshua Folk, Matthew Yankowitz
https://arxiv.org/abs/2507.18598

Superconductivity from dual-surface carriers in rhombohedral graphene
Intrinsic rhombohedral graphene hosts an unusual low-energy electronic wavefunction, predominantly localized at its outer crystal faces with negligible presence in the bulk. Increasing the number of graphene layers amplifies the density of states near charge neutrality, greatly enhancing the susceptibility to symmetry-breaking phases. Here, we report superconductivity in rhombohedral graphene arising from an unusual charge-delocalized semimetallic normal state, characterized by coexisting valen…

Universally enhanced superconductivity and coexisting ferroelectricity at oxide interfaces
Meng Zhang, Ming Qin, Yanqiu Sun, Siyuan Hong, Yanwu Xie
https://arxiv.org/abs/2506.16298

Universally enhanced superconductivity and coexisting ferroelectricity at oxide interfaces
The coexistence of superconductivity and ferroelectricity is rare due to their conflicting requirements: superconductivity relies on free charge carriers, whereas ferroelectricity typically occurs in insulating systems. At LaAlO3/KTaO3 interfaces, we demonstrate the coexistence of two-dimensional superconductivity and ferroelectricity, enabled by the unique properties of KTaO3 as a quantum paraelectric. Systematic gating and poling experiments reveal a universal enhancement of the superconducti…

Dallas Cowboys rookie suffers 'setback with his knee,' per NFL insider https://www.si.com/nfl/cowboys/news/dallas-cowboys-rookie-suffers-setback-with-his-knee-per-nfl-insider