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It has been shown that a single-domain magnetic nanoparticle can be effectively switched by a linear down-chirp microwave field pulse (DCMWP) in zero temperature limit. However, finite temperature is ubiquitous in practice. Here, we study…

介观与纳米尺度物理 · 物理学 2021-06-21 M. T. Islam , M. A. J. Pikul , X. S. Wang

We investigate the thermodynamic, magnetic, and electrical transport properties of a triangular-lattice antiferromagnet EuZnGe using single crystals grown from Eu-Zn flux in sealed tantalum tubes. Magnetic properties are found to be…

强关联电子 · 物理学 2022-09-23 Takashi Kurumaji , Masaki Gen , Shunsuke Kitou , Hajime Sagayama , Akihiko Ikeda , Taka-hisa Arima

The paper describes preliminary investigations of a new effect in conducting anisotropic liquids, which leads to thermoelectric conversion of energy. Nematic liquid crystals with semiconducting dopes are used. A thermoelectric figure of…

软凝聚态物质 · 物理学 2013-08-02 Sergey I. Trashkeev , Alexey N. Kudryavtsev

Using a new second derivative technique and thermometers which enable us to determine the local electron temperature in a mesoscopic metallic sample, we have obtained quantitative measurements of the low temperature field and temperature…

介观与纳米尺度物理 · 物理学 2009-11-07 D. A. Dikin , S. Jung , V. Chandrasekhar

The Pair Approximation method is applied to studies of the bilayer and multilayer magnetic systems with simple cubic structure. The method allows to take into account quantum effects related with non-Ising couplings. The paper adopts the…

统计力学 · 物理学 2013-04-09 Karol Szałowski , Tadeusz Balcerzak

In weakly collisional, strongly magnetised plasmas such as the intracluster medium (ICM), hot accretion flows and the solar corona, the transport of heat and momentum occurs primarily along magnetic field lines. In this paper we present a…

A systematic study of the temperature and magnetic field dependence of the longitudinal and transverse resistivities of epitaxial thin films of magnetite (Fe3O4) is reported. The anisotropic magnetoresistance (AMR) and the planar Hall…

强关联电子 · 物理学 2015-05-30 N. Naftalis , A. Kaplan , M. Schultz , C. A. F. Vaz , J. A. Moyer , C. H. Ahn , L. Klein

We report the magnetic, electrical, and magnetotransport (Hall effect) properties of the hexagonal itinerant ferromagnet Cr$_{0.83}$Te. Further, a comprehensive study of the magneto-entropy scaling behavior has been done around the Curie…

The authors report on synthesis and thermal properties of the electrically-conductive thermal interface materials with the hybrid graphene-metal particle fillers. The thermal conductivity of resulting composites was increased by ~500% in a…

介观与纳米尺度物理 · 物理学 2015-06-04 Vivek Goyal , Alexander A. Balandin

Thermoelectric transport across normal-metal/helical-multiferroic/ferromagnetic heterojunctions is theoretically investigated. We find a anisotropic charge and spin thermopower with a $C_{2v}$ symmetry. The angular dependence on the…

介观与纳米尺度物理 · 物理学 2015-05-28 Chenglong Jia , Jamal Berakdar

We investigate the structural, magnetocrystalline anisotropy, critical behaviour, and magnetocaloric effect in the layered room-temperature monoclinic ferromagnet Cr$_{1.38}$Te$_2$. The critical behavior is studied by employing various…

Nano-structures with giant magnetocrystalline anisotropy energies (MAE) are desired in designing miniaturized magnetic storage and quantum computing devices. Through ab initio and model calculations, we propose that special p-element dimers…

材料科学 · 物理学 2016-12-28 Rui Pang , Bei Deng , Xingqiang Shi

The group IV-VI compound SnSe, with an orthorhombic lattice structure, has recently attracted particular interest due to its unexpectedly low thermal conductivity and high power factor, showing great promise for thermoelectric applications.…

材料科学 · 物理学 2017-01-03 Xiaolong Xu , Qingjun Song , Haifeng Wang , Pan Li , Kun Zhang , Yilun Wang , Kai Yuan , Zichen Yang , Yu Ye , Lun Dai

We report measurements of electronic, thermoelectric, and galvanomagnetic properties of individual single crystal antimony telluride (Sb2Te3) nanowires with diameters in the range of 20-100 nm. Temperature dependent resistivity and…

介观与纳米尺度物理 · 物理学 2010-08-16 Y. M. Zuev , J. S. Lee , C. Galloy , H. Park , P. Kim

We present a comprehensive study on anisotropic magnetocaloric porperties of the van der Waals weak-itinerant ferromagnet Fe$_{3-x}$GeTe$_2$ that features gate-tunable room-temperature ferromagnetism in few-layer device. Intrinsic…

强关联电子 · 物理学 2019-09-16 Yu Liu , Jun Li , Jing Tao , Yimei Zhu , C. Petrovic

Magnets with controllable magnetization and high critical temperature are essential for practical spintronics devices, among which the two-dimensional 1T-CrTe2 stands out because of its high experimental critical temperature up to about…

材料科学 · 物理学 2025-10-14 Fengping Li , Bheema Lingam Chittari , Chao Lei , Jeil Jung

Thermoelectric effects allow the generation of electrical power from waste heat and the electrical control of cooling and heating. Remarkably, these effects are also highly sensitive to the asymmetry in the density of states around the…

介观与纳米尺度物理 · 物理学 2016-07-13 I. J. Vera-Marun , J. J. van den Berg , F. K. Dejene , B. J. van Wees

Using the tight-binding approach, we investigate the thermoelectric (TE) properties of rectangular phosphorene nanorings for both symmetrically and asymmetrically attaching to phosphorene nanoribbon leads. We design our phosphorene-based…

介观与纳米尺度物理 · 物理学 2023-08-09 Fatemeh Moghadasi Borojeni , Esmaeil Taghizadeh Sisakht , Farhad Fazileh , F. M. Peeters

Thermal transmission in a molecular transistor with fully spin-polarized electrodes subjected to a temperature gradient is considered. The problem has been solved by using density matrix method in perturbation approach over small tunneling…

介观与纳米尺度物理 · 物理学 2022-07-12 A. D. Shkop

Thermal expansion is a problem in many technological applications and its control represents a challenge in materials design. In this Letter, after studying the correlation between thermal expansion, cubic-to-rhombohedral transition and…

材料科学 · 物理学 2018-09-13 Andrea Sanson