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Related papers: Large thermo-spin effects in Heusler alloy based s…

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The temperature dependence of electron spin resonance (ESR) was studied in the oxypnictide superconductors LaFeAsO$_{1-x}$F$_x$ (x = 0.0 and 0.13). In the samples, the ESR signal indicates that the g factor and peak-to-peak linewidth…

Superconductivity · Physics 2009-11-13 T. Wu , J. J. Ying , G. Wu , R. H. Liu , Y. He , H. Chen , X. F. Wang , Y. L. Xie , Y. J. Yan , X. H. Chen

We present spin transport studies on a low-field, room-temperature magnetoelectric multiferroic polycrystalline $\text{Sr}_{3}\text{Co}_{2}\text{Fe}_{24}\text{O}_{41}$ (SCFO)|Pt heterostructure wherein a highly tunable transverse conical…

Materials Science · Physics 2022-05-25 Aditya A. Wagh , Priyanka Garg , Kingshuk Mallick , Suja Elizabeth , P. S. Anil Kumar

Anomalous Nernst effect (ANE), a widely investigated transverse thermoelectric effect that converts waste heat into electrical energy with remarkable flexibility and integration capability, has been extended to antiferromagnets with…

We report the observation of magnon spin currents generated by the Spin Seebeck effect (SSE) in a bulk single crystal of the easy-plane antiferromagnet NiO. A magnetic field induces a non-degeneracy and thereby an imbalance in the…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 Geert R. Hoogeboom , Bart J. van Wees

Anomalous magnetothermal effects are discussed in the spin-1/2 Heisenberg chain. The energy current is related to one of the non-trivial conserved quantities underlying integrability and therefore both the diagonal and off diagonal…

Statistical Mechanics · Physics 2015-06-24 Kazumitsu Sakai , Andreas Klumper

A tuning of Fermi level (E$_F$) near Weyl points is one of the promising approaches to realize large anomalous Nernst effect (ANE). In this work, we introduce an efficient approach to tune E$_F$ for the Co$_2$MnAl Weyl semimetal through a…

Materials Science · Physics 2021-03-12 Rajkumar Modak , Kazuki Goto , Shigenori Ueda , Yoshio Miura , Ken-ichi Uchida , Yuya Sakuraba

The discovery of superconductivity (SC) with a transition temperature, Tc, up to 65K in single-layer FeSe (bulk Tc =8K) films grown on SrTiO3 substrates has attracted special attention to Fe-based thin films. The high Tc is a consequence of…

In ferromagnetic solids, even in absence of magnetic field, a transverse voltage can be generated by a longitudinal temperature gradient. This thermoelectric counterpart of the Anomalous Hall effect (AHE) is dubbed the Anomalous Nernst…

Materials Science · Physics 2020-04-02 Haiyang Yang , Wei You , Jialu Wang , Junwu Huang , Chuanying Xi , Chao Cao , Mingliang Tian , Zhu-An Xu , Jianhui Dai , Yuke Li

A series of thin films Fe$_{4-x}$Ge$_x$N (x=0-1) was fabricated onto MgO substrates by magnetron sputtering with the aim of studying the possible enhancement of the anomalous Nernst effect (ANE), envisaged based on Density Functional Theory…

In their Comment, Kimling and Kuschel (hereafter the commenters) challenge our original interpretation of the magneto-optical Kerr effect (MOKE) measurements using ultrasensitive Sagnac interferometer, claiming that the transverse…

Materials Science · Physics 2019-03-27 R. McLaughlin , D. Sun , C. Zhang , M. Groesbeck , Z. Valy Vardeny

We report the physical properties of Co$_2$CrAl Heusler alloy epitaxial thin films grown on single crystalline MgO(001) substrate using pulsed laser deposition technique. The x-ray diffraction pattern in $\theta$-2$\theta$ mode showed the…

Materials Science · Physics 2022-08-10 Guru Dutt Gupt , Rajendra S. Dhaka

For electrical spin injection and detection of spin-polarized electrons in silicon, we explore highly epitaxial growth of ferromagnetic full-Heusler-alloy Co2FeSi thin films on silicon substrates using low-temperature molecular beam epitaxy…

Materials Science · Physics 2015-05-13 S. Yamada , K. Yamamoto , K. Ueda , Y. Ando , K. Hamaya , T. Sadoh , M. Miyao

The knowledge of Seebeck coefficient is a key factor in optimization of thermoelectric materials and finding right applications for it. A high sensitivity to structural change makes thermopower measurements an excellent technique for the…

Mesoscale and Nanoscale Physics · Physics 2025-08-07 Vo Van Tai , Nguyen Duy Vy , Truong Van Tuan , Nguyen Quoc Khanh

Spin excitations of magnetic thin films are the founding element for novel transport concepts in spintronics, magnonics, and magnetic devices in general. While spin dynamics have been extensively studied in bulk materials, their behaviour…

Topological magnetic semimetals promise large Berry curvature through the distribution of the topological Weyl nodes or nodal lines and further novel physics with exotic transport phenomena. We present a systematic study of the structural…

The nonlocal spin resistance is measured as a function of temperature in a Fe/GaAs spin-injection device. For nonannealed samples that show minority-spin injection, the spin resistance is observed up to room temperature and decays…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 G. Salis , A. Fuhrer , R. R. Schlittler , L. Gross , S. F. Alvarado

The present work investigates the less explored thermoelectric properties of n-type GaN semiconductors by combined both the experimental and computational tools. Seebeck coefficients of epitaxial thin films of GaN were experimentally…

Materials Science · Physics 2021-02-24 Ashish Kumar , Saurabh Singh , Ashutosh Patel , K. Asokan , D. Kanjilal

Transverse thermoelectric conversion holds significant potential in addressing complex challenges faced by classical Seebeck/Peltier modules. A promising transverse thermoelectric phenomenon is the anomalous Nernst effect (ANE) originating…

Materials Science · Physics 2024-11-25 Takamasa Hirai , Fuyuki Ando , Hossein Sepehri-Amin , Ken-ichi Uchida

Antiferromagnetic Heisenberg spin chains with various spin values ($S=1/2,1,3/2,2,5/2$) are studied numerically with the quantum Monte Carlo method. Effective spin $S$ chains are realized by ferromagnetically coupling $n=2S$…

Strongly Correlated Electrons · Physics 2009-10-30 Y. J. Kim , M. Greven , U. -J. Wiese , R. J. Birgeneau

The semiconductiong ${\alpha'}$-borophene nanoribbon (${\alpha'}$-BNR) due to its incredible properties such as high stability and great mobility of carriers demostrates high-efficiency in thermoelectric devices. These properties enable us…

Mesoscale and Nanoscale Physics · Physics 2024-12-20 F. Ghasemzadeh , M. Farokhnezhad , M. Esmaeilzadeh
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