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Related papers: Spintronic THz emitters based on NiCu alloys

200 papers

We report the structural, magnetic, and magnetocaloric properties of Co$_2$Cr$_{1-x}$Ti$_x$Al ($x=$ 0--0.5) Heusler alloys for spintronic and magnetic refrigerator applications. Room temperature X-ray diffraction and neutron diffraction…

Materials Science · Physics 2019-11-06 Priyanka Nehla , Yousef Kareri , Guru Dutt Gupt , James Hester , P. D. Babu , Clemens Ulrich , R. S. Dhaka

The development of compact and tunable room temperature sources of coherent THz-frequency signals would open a way for numerous new applications. The existing approaches to THz-frequency generation based on superconductor Josephson…

Mesoscale and Nanoscale Physics · Physics 2016-10-03 Roman Khymyn , Ivan Lisenkov , Vasyl Tiberkevich , Boris A. Ivanov , Andrei Slavin

It is essential to explore two-dimensional (2D) material with magnetic ordering in new generation spintronic devices. Particularly, the seeking of room-temperature 2D ferromagnetic (FM) materials is a hot topic of current research. Here, we…

Mesoscale and Nanoscale Physics · Physics 2018-09-07 Chang-Wei Wu , Jun-Han Huang , Dao-Xin Yao

Half-metallicity (HM) offers great potential for engineering spintronic applications, yet only few magnetic materials present metallicity in just one spin channel. In addition, most HM systems become magnetically disordered at temperatures…

Materials Science · Physics 2018-12-13 Muhammad Atif Sattar , S. Aftab Ahmad , Fayyaz Hussain , Claudio Cazorla

This work presents a theoretical study of the electronic structure and transport properties of Ni-Au alloys, recently identified as excellent thermoelectric metals with a power factor significantly exceeding that of conventional…

Materials Science · Physics 2025-10-21 Kacper Pryga , Bartlomiej Wiendlocha

Room temperature ferromagnetism has been one of the most sought after topics in today's emerging field of spintronics. It is strongly believed that defect- and inhomogeneity- free sample growth should be the optimal route for achieving…

Materials Science · Physics 2012-01-24 Akash Chakraborty , Richard Bouzerar , Stefan Kettemann , Georges Bouzerar

Spin filtering is a fundamental operation in spintronics, enabling the generation and detection of spin-polarized carriers. Here, we proposed and theoretically demonstrated that a 3d transition metal (TM) doped silicon quantum dot (SiQD) is…

Mesoscale and Nanoscale Physics · Physics 2024-02-28 Hemant Arora , Arup Samanta

Recent advancements in spintronics have opened a new avenue in terahertz (THz) radiation sources that may outperform the traditional contact-based metallic counterparts. Inspired by the generation of broadband spintronic THz signals at the…

Mesoscale and Nanoscale Physics · Physics 2025-04-25 Abbas Ghaffari , Malek Abdelsamei , Puja Thapa , Seiji Mita , Ramón Collazo , Kenan Gundogdu , Dali Sun , Qing Gu

The effect of sintering temperatures (Ts) on the structural and magnetic properties of Ni0.6Zn0.4Fe2O4 (NZFO) ferrites synthesized by conventional double sintering method has been reported. The samples are sintered at 1200, 1250 and 1300…

Materials Science · Physics 2016-04-13 M. A. Ali , M. N. I. Khan , F. -U. -Z. Chowdhury , D. K. Saha , S. M. Hoque , S. I. Liba , S. Akhter , M. M. Uddin

The possibility to induce long range ferromagnetic order by doping oxides with transition metal ions has become a very exciting challenge in the last decade. Theoretically, it has been claimed that Mn doped ZrO$_2$ could be a very promising…

Materials Science · Physics 2014-01-03 Akash Chakraborty , Georges Bouzerar

Structural properties, impedance, dielectric and electric modulus spectra have been used to investigate the sintering temperature (Ts) effect on the single phase cubic spinel Ni0.6Zn0.4Fe2O4 (NZFO) ceramics synthesized by standard ceramic…

Materials Science · Physics 2016-10-19 M. A. Ali , M. N. I. Khan , F. -U. -Z. Chowdhury , S. Akhter , M. M. Uddin

Recent studies in spintronics have highlighted ultrathin magnetic metallic multilayers as a novel and very promising class of broadband terahertz radiation sources. Such spintronic multilayers consist of ferromagnetic (FM) and non-magnetic…

We report results of a muon spin rotation and relaxation ($\mu$SR) study of dilute Pd$_{1-x}$Ni$_x$ alloys, with emphasis on Ni concentrations $x =$ 0.0243 and 0.025. These are close to the critical value $x_\mathrm{cr}$ for the onset of…

Ferrimagnetic semiconductors, integrated with net magnetization, antiferromagnetic coupling and semi-conductivity, have constructed an ideal platform for spintronics. For practical applications, achieving high N$\acute{e}$el temperatures…

Materials Science · Physics 2024-11-08 Haidi Wang , Qingqing Feng , Shuo Li , Wei Lin , Weiduo Zhu , Zhao Chen , Zhongjun Li , Xiaofeng Liu , Xingxing Li

Spin excitations are one of the top candidates for mediating electron pairing in unconventional superconductors. Their coupling to superconductivity is evident in a large number of systems, by the observation of an abrupt redistribution of…

We investigate spin dynamics in nanodisc arrays of synthetic-antiferromagnets (SAF) made of Py/NiCu/Py trilayers, where the NiCu spacer undergoes a Curie transition at about 200 K. The observed ferromagnetic resonance spectra have three…

Mesoscale and Nanoscale Physics · Physics 2024-06-19 V. Yu. Borynskyi , D. M. Polishchuk , A. K. Melnyk , A. F. Kravets , A. I. Tovstolytkin , V. Korenivski

In this paper, we investigated the Co2TiX (X = Ge, Sn) Heusler alloys by structural, magnetic and spin polarization measurements to probe the half-metallic nature. Alloys are synthesized using the arc melting technique, and found to exist…

Materials Science · Physics 2015-12-01 Lakhan Bainsla , K. G. Suresh

Ferromagnetic electrodes chemically bonded with thiol functionalized molecules can produce novel molecular spintronics devices. However, major challenges lie in developing Ferromagnetic electrodes based commercially viable device…

Materials Science · Physics 2019-12-04 Pawan Tyagi , Edward Friebe , Collin Baker

Transition metal dichalcogenides (TMDs) have emerged as a promising class of materials for spintronics, with the aim of promoting efficient spin-charge conversion (SCC) in TMD/ferromagnet (FM)-based devices. The MoTe$_2$ semimetal with…

Platinum (Pt) is the element with the largest spin Hall conductivity and is known as the most efficient spin-to-charge conversion material in spintronic THz emitters. By alloying with aluminum (Al), its resistivity can be substantially…