scholarly journals Quantitative imaging of flux vortices in the type-II superconductor MgB2using cryo-Lorentz transmission electron microscopy

2013 ◽  
Vol 88 (1) ◽  
Author(s):  
M. J. G. Cottet ◽  
M. Cantoni ◽  
B. Mansart ◽  
D. T. L. Alexander ◽  
C. Hébert ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Quantitative Imaging ◽  
Type Ii ◽  
Transmission Electron ◽  
Type Ii Superconductor ◽  
Flux Vortices ◽  
Lorentz Transmission Electron Microscopy

scholarly journals Determination of the 3-D Magnetic Vector Potential using Lorentz Transmission Electron Microscopy

2009 ◽  
Vol 15 (S2) ◽  
pp. 134-135 ◽  
Author(s):  
C Phatak ◽  
E Humphrey ◽  
M DeGraef ◽  
A Petford-Long
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Vector Potential ◽  
Magnetic Vector Potential ◽  
Magnetic Vector ◽  
Transmission Electron ◽  
Lorentz Transmission Electron Microscopy

Extended abstract of a paper presented at Microscopy and Microanalysis 2009 in Richmond, Virginia, USA, July 26 – July 30, 2009

Lorentz transmission electron microscopy for magnetic skyrmions imaging

2019 ◽  
Vol 28 (8) ◽  
pp. 087503 ◽  
Author(s):  
Jin Tang ◽  
Lingyao Kong ◽  
Weiwei Wang ◽  
Haifeng Du ◽  
Mingliang Tian
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Lorentz Transmission Electron Microscopy ◽  
Magnetic Skyrmions

scholarly journals Intrinsic stability of magnetic anti-skyrmions in the tetragonal inverse Heusler compound Mn1.4Pt0.9Pd0.1Sn

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Rana Saha ◽  
Abhay K. Srivastava ◽  
Tianping Ma ◽  
Jagannath Jena ◽  
Peter Werner ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Current Interest ◽  
Heusler Compound ◽  
Micromagnetic Simulations ◽  
Intrinsic Stability ◽  
Transmission Electron ◽  
Wide Range ◽  
Topological Characteristics ◽  
Lorentz Transmission Electron Microscopy

AbstractMagnetic anti-skyrmions are one of several chiral spin textures that are of great current interest both for their topological characteristics and potential spintronic applications. Anti-skyrmions were recently observed in the inverse tetragonal Heusler material Mn1.4Pt0.9Pd0.1Sn. Here we show, using Lorentz transmission electron microscopy, that anti-skyrmions are found over a wide range of temperature and magnetic fields in wedged lamellae formed from single crystals of Mn1.4Pt0.9Pd0.1Sn for thicknesses ranging up to ~250 nm. The temperature-field stability window of the anti-skyrmions varies little with thickness. Using micromagnetic simulations we show that this intrinsic stability of anti-skyrmions can be accounted for by the symmetry of the crystal lattice which is imposed on that of the Dzyaloshinskii-Moriya exchange interaction. These distinctive behaviors of anti-skyrmions makes them particularly attractive for spintronic applications.

Magnetic and Crystallographic Microstructure of SrRuO3 Studied by Lorentz Transmission Electron Microscopy

1997 ◽  
Vol 3 (S2) ◽  
pp. 521-522
Author(s):  
A.F. Marshall ◽  
L. Klein ◽  
J.S. Dodge ◽  
C.H. Ahn ◽  
J.W. Reiner ◽  
...  
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Temperature Superconductors ◽  
Uniaxial Anisotropy ◽  
Practical Interest ◽  
Transmission Electron ◽  
Easy Direction ◽  
Cu Substrates ◽  
Lorentz Transmission Electron Microscopy

SrRuO3 is a low temperature ferromagnet (Tc ≌ 150K) which has recently been investigated in thin film form due to its structural compatibility with other thin film perovskites materials of practical interest, including high-temperature superconductors. Magnetization studies of thin films of SrRuO3 deposited on cubic SrTiO3 indicate strong uniaxial anisotropy with the easy direction approximately along either the a or b axis, which are difficult to distinguish. The orthorhombic structure of SrRuO3 (a = 5.53, b = 5.57, c = 7.84 Å) has six symmetry-related orientations on the cubic substrate (a = 3.9Å). Using Lorentz transmission electron microscopy both the magnetic and the crystallographic domain microstructure are characterized.For TEM imaging the films are readily removed from the substrate by chemical etching, using a HF:HNO3:H2O etch of approximately 1:1:1 dilution. Free-floating SrRuO3 films of 300-1000Å in thickness are then supported on standard carbon/formvar films on Cu substrates.

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