# Browse by Subject "Physics, Condensed Matter"

• (1992)
The high temperature superconductors have been examined by the technique of Raman scattering in several limits: the insulating phase, the normal and superconducting state of the superconducting phase, and an optically ...

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• (1994)
A linearity improvement technique using a combination of passive resistors and current-steering MOS transistors as a variable resistance element is applied in the implementation of low-distortion continuous-time filters ...

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• (1995)
The length of the jumps executed by atoms during diffusion is important for understanding atomic transport in crystal growth. Molecular dynamics simulations suggest that atomic jumps longer than a nearest-neighbor spacing ...

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• (1996)
The low frequency dynamics of the charge-density waves in NbSe$\sb3$ and TaS$\sb3$ were investigated using low frequency conductance fluctuations. Simultaneous measurements of the fluctuations in the voltage and the ...

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• (1989)
Sintered powders of La$\sb{1.85}$Ba$\sb{0.15}$CuO$\sb4$, La$\sb{1.8}$Sr$\sb{0.2}$CuO$\sb4$, YBa$\sb2$Cu$\sb3$O$\sb{\rm7-x}$, and GdBa$\sb2$Cu$\sb3$O$\sb{\rm 7-x}$ were prepared by solid state reaction. The samples were ...

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• (1989)
Microwave techniques are used to measure the dielectric response of M$\sp+$ beta alumina at 16 GHz for temperatures between 0.3 and 20K. (M$\sp+$ refers to the monovalent cations Na, K, Ag, or Li.) These measurements include ...

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• (1974)

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• (1992)
The low-temperature specific heat of high quality, well characterized sintered polycrystalline samples of superconducting Ba$\sb{0.6}$K$\sb{0.4}$BiO$\sb3,$ YBa$\sb2$Cu$\sb3$O$\sb{6.7},$ and Bi$\sb2$Sr$\sb2$CaCu$\sb2$O$\sb{\rm ... application/pdf PDF (5Mb) • (1994) We develop a field theoretical formalism for the description of a system of planar electrons moving under the influence of a strong magnetic field, with emphasis on its relevance to the physics of the fractional quantum ... application/pdf PDF (5Mb) • (1972) application/pdf PDF (6Mb) • (1974) application/pdf PDF (8Mb) • (1994) The author reports on a study of the magnetic properties of the cuprate superconductors in both the normal and superconducting states. The magnetic properties are studied by making comparison to the results of nuclear ... application/pdf PDF (3Mb) • (1989) The effects of a random component of the magnetocrystalline anisotropy on the magnetic properties and critical behavior of DyAl$\sb2$have been investigated using bulk magnetic measurements. Randomness in the magnetic ... application/pdf PDF (7Mb) • (1995) We have studied a series of Nd/Y films and superlattices, grown by molecular beam epitaxy (MBE), using neutron, x-ray, and bulk magnetization techniques. These epitaxial Nd/Y systems are the first to be grown and studied ... application/pdf PDF (6Mb) • (1995) This thesis consists of two parts, in which I consider two very different examples of magnetism in strongly correlated electron systems, the high-T$\sb{c}$materials and heavy fermions. application/pdf PDF (4Mb) • (1994) To understand the cause of the giant magnetoresistance effect, we have systematically investigated magnetothermopower, magneto-thermal conductivity and magnetoresistivity in both ferromagnetic/non-magnetic multilayers and ... application/pdf PDF (4Mb) • (1992) A new approach to the problem of X-ray edge singularities and peaks of many-body origin observed in the optical spectra is presented. We first establish the analogy between a system of one hole interacting with many electrons ... application/pdf PDF (4Mb) • (1995) The material and device characterization of furnace and rapid thermally annealed (RTA) GaAs/AlGaAs multiple quantum well (MQW) infrared (IR) photodetectors (QWIPs) epitaxially grown on GaAs and Si substrates is presented. ... application/pdf PDF (3Mb) • (1989) High-precision measurements of third sound velocities in atomically thin$\sp4$He films on Ar, Ne, CO$\sb2$, and H$\sb2\$ substrates in the T = OK limit reveal a periodic structure not corresponding to whole layers. We ...

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• (1991)
Two experiments related to 1/f resistance noise will be described in this thesis. The first is measurements of the anelastic piezoresistance in thin films of bismuth, niobium and iron to demonstrate a connection between ...

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