English
Related papers

Related papers: Unlocking high coercivity at room temperature in p…

200 papers

We study how the non-Fermi-liquid two-phase state reveals itself in transport properties of high-mobility Si-MOSFETs. We have found features in zero-field transport, magnetotransport, and thermodynamic spin magnetization in a 2D correlated…

Strongly Correlated Electrons · Physics 2016-06-28 L. A. Morgun , A. Yu. Kuntsevich , V. M. Pudalov

Room temperature ferromagnetism was observed in In$_2$O$_3 thin films doped with 5 at.% vanadium, prepared by pulsed laser deposition at substrate temperatures ranging from 300 to 600 $\,^{\circ}{\rm C}$. X-ray absorption fine structure…

Materials Science · Physics 2015-06-17 Qi Feng , Harry J Blythe , A Mark Fox , Xiu-Fang Qin , Xiao-Hong Xu , Steve M Heald , Gillian A Gehring

The apparent metal-insulator transition is observed in a high quality two-dimensional electron system (2DES) in the strained Si quantum well of a Si/Si_{1-x}Ge_x heterostructure with mobility \mu=1.9 x 10^5 cm^2/Vs at density n=1.45 x…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 K. Lai , W. Pan , D. C. Tsui , S. A. Lyon , M. Muhlberger , F. Schaffler

Measurements of magnetization, specific heat, electrical resistivity, Hall effect, and magnetoresistance on single crystalline samples of LaFeAsO grown in a NaAs flux are reported. While this material is known to be a semimetal, the…

Superconductivity · Physics 2015-06-16 C. A. McElroy , J. J. Hamlin , B. D. White , M. A. McGuire , B. C. Sales , M. B. Maple

The efficient coupling between lattice degrees of freedom and spin degrees of freedom in magnetic materials can be used for refrigeration and energy conversion. This coupling is enhanced in materials exhibiting the giant magnetocaloric…

The mechanism of the peculiar transport properties around the magnetic ordering temperature of semiconducting antiferromagnetic EuCd$_2$P$_2$ is not yet understood. With a huge peak in the resistivity observed above the N\'eel temperature,…

Pursuing two-dimensional (2D) intrinsic ferromagnetism with high Curie temperature and great mechanical flexibility has attracted great interest in flexible spintronics. In the present work, we carried out a density functional theory (DFT)…

Materials Science · Physics 2019-07-29 Peng Lv , Gang Tang , Chao Yang , Jianming Deng , Yanyu Liu , Xueyun Wang , Xianqiao Wang , Jiawang Hong

The discovery of magnetism in van der Waals (vdW) materials has established unique building blocks for the research of emergent spintronic phenomena. In particular, owing to their intrinsically clean surface without dangling bonds, the vdW…

We investigate the magnetic properties of a composite comprising of ferromagnetic Cobalt nanowires embedded in nanoporous anodized alumina template. We observe unusual increase in, the saturation magnetization and the coercive field, of the…

Mesoscale and Nanoscale Physics · Physics 2011-06-13 Jaivardhan Sinha , S. S. Banerjee

The quest for high-efficiency heat-to-electricity conversion has been one of the major driving forces towards renewable energy production for the future. Efficient thermoelectric devices require high voltage generation from a temperature…

Materials Science · Physics 2017-03-08 Kedar Hippalgaonkar , Ying Wang , Yu Ye , Diana Qiu , Hanyu Zhu , Yuan Wang , Joel Moore , Steven Louie , Xiang Zhang

Nanostructured permanent magnets are gaining increasing interest and importance for applications such as generators and motors. Thermal management is a key concern since performance of permanent magnets decreases with temperature. We…

Materials Science · Physics 2017-10-19 A. D. Volodchenkov , S. Ramirez , R. Samnakay , R. Salgado , Y. Kodera , A. A. Balandin , J. E. Garay

The recent discovery of magnetic ordering in two-dimension has lead to colossal efforts to find atomically thin materials that order at high temperatures. However, due to fundamental spin fluctuation in reduced dimension, the…

Strongly Correlated Electrons · Physics 2023-05-02 Chandan K. Singh , Mukul Kabir

Two-dimensional (2D) high-temperature ferromagnetic materials are important for spintronic application. Fortunately, a highly-air-stable PdSe$_2$ monolayer semiconductor has been made through exfoliation from the layered bulk material. It…

Mesoscale and Nanoscale Physics · Physics 2019-06-05 Shi-Hao Zhang , Bang-Gui Liu

We report a novel pressure-induced spin-density-wave transition in the superconductor Mo3Sb7 figured our by measurements of the electrical resistivity and magnetization under hydrostatic pressure. The critical temperature of superconducting…

Superconductivity · Physics 2009-08-03 V. H. Tran , R. T. Khan , P. Wisniewski , E. Bauer

We report on the structural and magnetic properties of a cobalt-implanted ZnO film grown on a sapphire substrate. X-ray diffraction and transmission electron microscopy reveal the presence of a (10-10)-oriented hexagonal Co phase in the…

Heat-to-charge conversion efficiency of thermoelectric materials is closely linked to the entropy per charge carrier. Thus, magnetic materials are promising building blocks for highly efficient energy harvesters, as their carrier entropy is…

Here we report successful synthesis of single crystalline magnetic Weyl semimetal Co3Sn2S2. The synthesized crystal is characterized through various tools viz. X-ray diffraction, field emission electron microscopy and X-ray photoelectron…

Materials Science · Physics 2022-11-28 Kapil Kuma , M. M. Sharma , V. P. S. Awana

Magnetic materials have found wide application ranging from electronics and memories to medicine. Essential to these advances is the control of the magnetic order. To date, most room-temperature applications have a fixed magnetic moment…

We report multiferroic behavior in double perovskite Y2CoMnO6 with ferroelectric transition temperature Tc = 80K. The origin of ferroelectricity is associated with magnetic ordering of Co2+ and Mn4+ moments in a up-up-down-down arrangement.…

Materials Science · Physics 2015-06-15 G. Sharma , J. Saha , S. Patnaik

The copper ferrite thin films have been deposited by RF sputtering at a 50W rf power. The As-deposited films are annealed in air at $800^{\circ}$C and then slow cooled. The As-deposited (AD) as well as slow cooled (SC) films are studied…

Strongly Correlated Electrons · Physics 2010-10-12 P. D. Kulkarni , Shiva Prasad , N. Venkataramani , R. Krishnan , Wenjie Pang , Ayon Guha , R. C. Woodward , R. L. Stamps