Yinwan Li

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We have carried out first principles, all-electron computations of the magnetic momentum density ␳ mag ͑p͒ and magnetic Compton profiles ͑MCPs͒ for momentum transfer along the ͓100͔, ͓001͔, and ͓110͔ directions in LaSr 2 Mn 2 O 7 and La 1.2 Sr 1.8 Mn 2 O 7 within the local spin density approximation ͑LSDA͒ based band theory framework. Parallel measurements(More)
We have measured temperature-dependent magnetic Compton profiles (MCPs) from a single crystal of La1.2Sr1.8Mn2O7. The MCPs, which involved the scattering of circularly polarized x rays, are in general related to the momentum density of all the unpaired spins in the system. Nevertheless, we show that when the x-ray scattering vector lies along the [110](More)
We consider the shape of the magnetic Compton profile (MCP), J mag (p z), in La 1.2 Sr 1.8 Mn 2 O 7 for momentum transfer p z along the [110] direction and the associated reciprocal form factor B(r) defined by taking the one-dimensional Fourier transform of J mag (p z). B(r) is shown to contain a prominent dip at rz1 A ˚ , where the minimum value B min of(More)
Magnetic Compton profiles have been measured for the colossal magnetoresistance manganites La 1.2 Sr 1.8 Mn 2 O 7 and La 0.7 Sr 0.3 MnO 3 , and for magnetite Fe 3 O 4 , along various crystallographic directions, over a wide range of temperatures and magnetic fields. The experimental results are interpreted via first-principles computations for the double(More)
The Rhyparochromidae, the largest family of Lygaeoidea, encompasses more than 1,850 described species, but no mitochondrial genome has been sequenced to date. Here we describe the first mitochondrial genome for Rhyparochromidae: a complete mitochondrial genome of Panaorus albomaculatus (Scott, 1874). This mitochondrial genome is comprised of 16,345 bp, and(More)
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