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7 papers · 2 filters
Discovery of a binary icosahedral quasicrystal in ScZn
P. C. Canfield, M. L. Caudle, C. -S. Ho +8
We report the discovery of a new binary icosahedral phase in a Sc-Zn alloy obtained through solution-growth, producing millimeter-sized, facetted, single grain, quasicrystals that…
Anisotropic thermal expansion of AEFe2As2 (AE = Ba, Sr, Ca) single crystals
Sergey L. Bud'ko, Ni Ni, Paul C. Canfield
We report anisotropic thermal expansion of the parent, AEFe2As2 (AE = Ba, Sr, and Ca), compounds. Above the structural/antiferromagnetic phase transition anisotropy of the thermal…
Repulsive Casimir Force in Chiral Metamaterials
R. Zhao, J. Zhou, Th. Koschny +2
We demonstrate theoretically that one can obtain repulsive Casimir forces and stable nanolevitations by using chiral metamaterials. By extending the Lifshitz theory to treat chiral…
Lattice dynamics in magnetic superelastic Ni-Mn-In alloys. Neutron scattering and ultrasonic experiments
Xavier Moya, David Gonzalez-Alonso, Lluis Manosa +7
Neutron scattering and ultrasonic methods have been used to study the lattice dynamics of two single crystals of Ni-Mn-In Heusler alloys close to NiMnIn magnet…
Anomalous spin-waves and the commensurate-incommensurate magnetic phase transition in LiNiPO4
T. B. S. Jensen, N. B. Christensen, M. Kenzelmann +9
Detailed spin-wave spectra of magneto-electric LiNiPO4 have been measured by neutron scattering at low temperatures in the commensurate (C) antiferromagnetic (AF) phase with orderi…
Probing fractal magnetic domains on multiple length scales in Nd2Fe14B
A. Kreyssig, R. Prozorov, C. D. Dewhurst +3
Using small-angle neutron scattering, we demonstrate that the complex magnetic domain patterns at the surface of Nd2Fe14B, revealed by quantitative Kerr and Faraday microscopy, pro…