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Iron phthalocyanine (FePc) is a molecular semiconductor whose building blocks are one-dimensional ferromagnetic chains. We show that its optical and magnetic properties are controlled by the growth strategy, obtaining extremely high…

Strongly Correlated Electrons · Physics 2019-10-17 Zhenlin Wu , Peter Robaschik , Luke R. Fleet , Solveig Felton , Gabriel Aeppli , Sandrine Heutz

We present a detailed investigation of the topological phases and Majorana fermion (MF) excitations that arise from the bulk interplay between (un)conventional one/two-band spin-singlet superconductivity and a number of magnetic texture…

Superconductivity · Physics 2022-03-28 Daniel Steffensen , Morten H. Christensen , Brian M. Andersen , Panagiotis Kotetes

This work investigates the magneto-transport properties of exfoliated NiTe2 nano-flakes with varying thicknesses and disorder levels, unveiling two distinct physical mechanisms governing the observed anisotropic linear magnetoresistance…

Mesoscale and Nanoscale Physics · Physics 2025-12-09 Ding Bang Zhou , Kuang Hong Gao , Tie Lin , Yang Yang , Meng Fan Zhao , Zhi Yan Jia , Xiao Xia Hu , Qian Jin Guo , Zhi Qing Li

The link between crystal and electronic structure is crucial for understanding structure-property relations in solid-state chemistry. In particular, it has been instrumental in understanding topological materials, where electrons behave…

Topological superconductivity has been sought for in a variety of heterostructure systems, the interest being that a material displaying such a phenomenon could prove to be the ideal platform to support Majorana fermions, which in turn…

Superconductivity · Physics 2021-01-22 N. Zaki , G. Gu , A. M. Tsvelik , C. Wu , P. D. Johnson

In crystalline systems with a superstructure, the electron dispersion can form a nontrivial covering of the Brillouin zone. It is proved that the number of sheets in this covering and its monodromy are topological invariants under ambient…

Other Condensed Matter · Physics 2026-04-30 Yu. B. Kudasov

FeSe, despite being the structurally simplest compound in the family of iron-based superconductors, shows an astoundingly rich interplay of physical phenomena including nematicity and pressure-induced magnetism. Here, we present a…

In strange metals, a strong and anomalous scattering effect exists and increases linearly with temperature. In FeSe, we observed that the temperature dependence of resistivity exhibits non-Fermi liquid behavior in two regions below and…

Superconductivity · Physics 2025-03-20 Xinyue Wang , Yue Sun , Wei Wei , Qiang Hou , Nan Zhou , Yufeng Zhang , Zhixiang Shi

A magnetic helix arises in chiral magnets with a wavelength set by the spin-orbit coupling. We show that the helimagnetic order is a nanoscale analog to liquid crystals, exhibiting topological structures and domain walls that are distinctly…

Strongly Correlated Electrons · Physics 2024-02-02 P. Schoenherr , J. Müller , L. Köhler , A. Rosch , N. Kanazawa , Y. Tokura , M. Garst , D. Meier

Magnetic topological semimetals provide a fertile ground for exploring how long-range magnetic order can alter electronic band structures and generate novel quasiparticles such as Weyl fermions. Here, we investigate the coupled magnetic and…

Subtle changes in chemical bonds may result in dramatic revolutions in magnetic properties in solid state materials. MnPt5P, a new derivative of the rare-earth-free ferromagnetic MnPt5As, was discovered and is presented in this work. MnPt5P…

Materials Science · Physics 2020-06-23 Xin Gui , Ryan A. Klein , Craig M. Brown , Weiwei Xie

The change of a material's electrical resistance (R) in response to an external magnetic field (B) provides subtle information for the characterization of its electronic properties and has found applications in sensor and storage related…

In several parent iron-pnictide compounds the resistivity has an extended range of linear magnetic field dependence. We argue that there is a simple and natural explanation of this behavior. Spin density wave transition leads to…

Superconductivity · Physics 2013-09-02 A. E. Koshelev

Electrical-resistivity and magnetic-susceptibility measurements under hydrostatic pressure up to p = 2.75 GPa have been performed on superconducting LiFeP. A broad superconducting (SC) region exists in the temperature - pressure (T-p) phase…

Superconductivity · Physics 2010-07-14 K. Mydeen , E. Lengyel , Z. Deng , X. C. Wang , C. Q. Jin , M. Nicklas

Integration between magnetism and topology is an exotic phenomenon in condensed-matter physics. Here, we propose an exotic phase named topological crystalline antiferromagnetic state, in which antiferromagnetism intrinsically integrates…

Materials Science · Physics 2017-10-11 Ningning Hao , Fawei Zheng , Ping Zhang , Shun-Qing Shen

Unconventional superconductivity often emerges at the border of long-range magnetic orders. Understanding the low-energy charge dynamics may provide crucial information on the formation of superconductivity. Here we report the…

Superconductivity · Physics 2017-11-01 P. Zheng , Y. J. Xu , W. Wu , G. Xu , J. L. Lv , F. K. Lin , P. Wang , Yi-feng Yang , J. L. Luo

Topological semimetals have energy bands near the Fermi energy sticking together at isolated points/lines/planes in the momentum space, which are often accompanied by stable surface states and intriguing bulk topological responses. Although…

Materials Science · Physics 2017-03-01 Bohm-Jung Yang , Troels Arnfred Bojesen , Takahiro Morimoto , Akira Furusaki

Magnetic topological materials are a class of compounds which can host massless electrons controlled by the magnetic order. One such compound is EuZn$_2$Sb$_2$, which has recently garnered interest due to its strong interplay between the Eu…

Strongly Correlated Electrons · Physics 2026-02-17 Yu Wei Soh , Hsiang Lee , Eugen Weschke , Shinichi Nishihaya , Mikhael T. Sayat , Masaki Uchida , Jian-Rui Soh

Chiral magnetic textures give rise to unconventional magnetotransport phenomena such as the topological Hall effect and nonreciprocal electronic transport. While the correspondence between real-space magnetic topology/symmetry and such…

The layered antiferromagnet FePS$_3$ has been shown to undergo a structural transition under pressure linked to an insulator-metal transition, with two incompatible models previously proposed for the highest-pressure structure. We present a…