Anisotropic thermal expansion ofFe1.06TeandFeTe0.5Se0.5single crystals

Anisotropic thermal expansion and magnetostriction of YNi2B2C single crystals

We present results of anisotropic thermal expansion and low temperature magnetostriction measurements on YNi2B2C single crystals grown by high temperature flux and floating zone techniques. Quantum oscillations of magnetostriction were observed at low temperatures for H‖c starting at fields significantly below Hc2 (H < 0.7Hc2). Large irreversible, longitudinal magnetostriction was seen in both,...

Anisotropic lattice expansion of three-dimensional colloidal crystals and its impact on hypersonic phonon band gaps.

We report anisotropic expansion of self-assembled colloidal polystyrene-poly(dimethylsiloxane) crystals and its impact on the phonon band structure at hypersonic frequencies. The structural expansion was achieved by a multistep infiltration-polymerization process. Such a process expands the interplanar lattice distance 17% after 8 cycles whereas the in-plane distance remains unaffected. The var...

Buckling Behavior of Long Anisotropic Plates Subjected to Elastically Restrained Thermal Expansion and Contraction

Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important role. The NASA STI Program Office is operated by Langley Research Center, the lead center for NASA's scientific and technical information. The NASA STI Program Office provides ...

Anisotropic Thermal Expansion and Cooperative Invar/Anti-Invar Effects in MnNi Alloy

T. Yokoyama 2 and K. Eguchi (IMS, The Grad. Univ. for Adv. Stud.) Thermal expansion of a tetragonal Mn88Ni12 alloy, which exhibits significant anisotropy, was investigated by EXAFS and path-integral quantum mechanical simulations. The EXAFS reveals that the Mn local environment is actually tetragonally distorted, while the Ni one retains its inherent cubic-like symmetry. The large thermal expan...

Buckling Behavior of Long Anisotropic Plates Subjected to Fully Restrained Thermal Expansion