نتایج جستجو برای: magnetic field induced strain

تعداد نتایج: 2146743  

1999
G. H. Wu C. H. Yu L. Q. Meng J. L. Chen F. M. Yang S. R. Qi W. S. Zhan L. C. Zhao

A giant magnetic-field-induced strain ~MFIS! of 23100 ppm has been obtained in Heusler alloy Ni52Mn22.2Ga25.8 single crystal in the @001# direction at a temperature from 23 to 31 °C. This MFIS reaches saturation in an applied field about 6 kOe, and exhibits the same amplitude with an opposite sign while the field is perpendicular to the samples. According to a previous model, this MFIS associat...

2015
P. M. Shepley A. W. Rushforth M. Wang G. Burnell T. A. Moore

The perpendicular magnetic anisotropy K(eff), magnetization reversal, and field-driven domain wall velocity in the creep regime are modified in Pt/Co(0.85-1.0 nm)/Pt thin films by strain applied via piezoelectric transducers. K(eff), measured by the extraordinary Hall effect, is reduced by 10 kJ/m(3) by tensile strain out-of-plane ε(z) = 9 × 10(-4), independently of the film thickness, indicati...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2012
Xiaochang Miao Sefaattin Tongay Arthur F Hebard

We investigate the magnetic-field- and temperature-dependent transport properties of CVD-grown graphene transferred to a flexible substrate (Kapton) and subjected to externally applied strain. In zero magnetic field, a logarithmic temperature-dependent conductivity correction, resulting from strong electron-electron interaction, becomes weaker with the application of strains as large as 0.6% be...

Journal: :Applied Physics Letters 2021

Strain induced by a magnetic field is common phenomenon for ferromagnets, but few antiferromagnets show large strain field. On the basis of linear measurements sintered samples triangular antiferromagnet ACrS2 (A = Cu, Ag, and Au) in fields up to 9 T, AgCrS2 sample was found strain, yielding volume change over 700 ppm, which one largest changes measured date an antiferromagnet. This appeared on...

2014
Tianxiang Nan Ziyao Zhou Ming Liu Xi Yang Yuan Gao Badih A. Assaf Hwaider Lin Siddharth Velu Xinjun Wang Haosu Luo Jimmy Chen Saad Akhtar Edward Hu Rohit Rajiv Kavin Krishnan Shalini Sreedhar Don Heiman Brandon M. Howe Gail J. Brown Nian X. Sun

Strain and charge co-mediated magnetoelectric coupling are expected in ultra-thin ferromagnetic/ferroelectric multiferroic heterostructures, which could lead to significantly enhanced magnetoelectric coupling. It is however challenging to observe the combined strain charge mediated magnetoelectric coupling, and difficult in quantitatively distinguish these two magnetoelectric coupling mechanism...

Journal: :Science 2010
N Levy S A Burke K L Meaker M Panlasigui A Zettl F Guinea A H Castro Neto M F Crommie

Recent theoretical proposals suggest that strain can be used to engineer graphene electronic states through the creation of a pseudo-magnetic field. This effect is unique to graphene because of its massless Dirac fermion-like band structure and particular lattice symmetry (C3v). Here, we present experimental spectroscopic measurements by scanning tunneling microscopy of highly strained nanobubb...

سوزان ذوالریاستین, , سیدعلی سبط, , فرشته آذرخرمن, , محمد اخوان, , مریم امیرحسینی, ,

  Submicron FeCo magnetic grains with different percents of cobalt were grown in the presence of magnetic field. After omitting the excess ions and oxygen, heat treatment was performed and some samples were oriented in a polymer background in the presence of a magnetic field. The results of SEM, XRD, and magnetic measurements confirm the existence of induced magnetic anisotropy. As the strength...

2012
Jun Lu Fengxiang Wang

Magnetically controlled shape memory alloy (MSMA) is a new functional material which is found in recent years. The material can produce large induced strain by magnetic field, and has fast dynamic response, high efficiency of electromagnetic-mechanical conversion and excellent controllability. High strains of 10-15% for MSMA materials with different structure are achieved [1, 2]. The complete f...

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