Determination of spin Hall angle in the Weyl ferromagnet by taking into account the thermoelectric contributions

H Isshiki, Z Zhu, H Mizuno, R Uesugi, T Higo… - Physical Review …, 2022 - APS
The spin Hall effects of various materials, including Weyl semimetals, have been studied by
the spin absorption method with the nonlocal spin valve structures. Here, we study Co 2 …

Giant anomalous Nernst effect in polycrystalline thin films of the Weyl ferromagnet Co2MnGa

R Uesugi, T Higo, S Nakatsuji - Applied Physics Letters, 2023 - pubs.aip.org
Recent discoveries of topological magnets have opened up diverse spintronic applications
of large responses due to their unique band structures. A prominent example is the …

Sha** Perpendicular Magnetic Anisotropy of Co2MnGa Heusler Alloy Using Ion Irradiation for Magnetic Sensor Applications

A Mahendra, PP Murmu, SK Acharya, A Islam… - Sensors, 2023 - mdpi.com
Magnetic sensors are key elements in many industrial, security, military, and biomedical
applications. Heusler alloys are promising materials for magnetic sensor applications due to …

Current-induced switching of a ferromagnetic Weyl semimetal Co2MnGa

J Han, BC McGoldrick, CT Chou, TS Safi… - Applied Physics …, 2021 - pubs.aip.org
The introduction of magnetic moments to topological materials provides rich opportunities for
studying the interplay among magnetism, electron correlation, and topological orders, which …

[HTML][HTML] Spin-generation in magnetic Weyl semimetal Co2MnGa across varying degree of chemical order

TS Safi, CT Chou, JT Hou, J Han, L Liu - Applied Physics Letters, 2022 - pubs.aip.org
Recently discovered magnetic Weyl semimetals (MWSM), with enhanced Berry curvature
stemming from the topology of their electronic band structure, have gained much interest for …

Optical Conductivity and Photo‐Induced Polaronic Formation in Co2MnGa Topological Semimetal

L Tomarchio, S Macis, S Mou, L Mosesso… - Advanced …, 2024 - Wiley Online Library
Topological materials occupy an important place in the quantum materials family due to their
peculiar low‐energy electrodynamics, hosting emergent magneto‐electrical, and nonlinear …

THz Generation from the Topological Nodal Line Semimetal Co2MnGa

L Tomarchio, S Mou, L Mosesso… - ACS Applied …, 2023 - ACS Publications
Nonlinear optical spectroscopy is a fundamental probe for the investigation of topological
effects in quantum materials. In this paper, we report on the terahertz (THz) emission from …

Superconductivity in the amorphous phase of the half-Heusler TiNiSn alloy

J Barzola-Quiquia, E Osmic, PG Bercoff… - Journal of Non …, 2023 - Elsevier
Amorphous TiNiSn films were prepared at T≈ 4. 2 K and resistance R (T) and thermopower
S (T) have been investigated. R (T) shows that the sample is superconducting and the …

High-resolution magnetic imaging by map** the locally induced anomalous Nernst effect using atomic force microscopy

N Budai, H Isshiki, R Uesugi, Z Zhu, T Higo… - Applied Physics …, 2023 - pubs.aip.org
We report a magnetic imaging method using atomic force microscopy to measure a locally
induced anomalous Nernst effect. A tip contact creates a local temperature gradient on a …

Topologically influenced terahertz emission in Co2MnGa with a large anomalous Hall effect

R Mandal, R Momma, K Ishibashi, S Iihama… - NPG Asia …, 2024 - nature.com
The terahertz (THz) spectral zone is one of the most exciting but least explored domains of
the electromagnetic spectrum. To extend the applicability of THz waves, the present …