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Article
Memory Effects in the Charge Response of Lightly Doped La2−x Sr x CuO4
The in-plane magnetoresistance (MR) of a single crystal La1.97Sr0.03CuO4 has been studied at low temperatures T using several experimental protocols. At T well below the spin-glass transition temperature, the MR ...
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Article
Phase fluctuations and the absence of topological defects in a photo-excited charge-ordered nickelate
The dynamics of an order parameter's amplitude and phase determines the collective behaviour of novel states emerging in complex materials. Time- and momentum-resolved pump-probe spectroscopy, by virtue of mea...
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Article
A momentum-dependent perspective on quasiparticle interference in Bi2Sr2CaCu2O8+δ
Scanning tunnelling spectroscopy and angle-resolved photoemission spectroscopy are complementary probes, and yet the results of recent studies using these techniques on quasiparticle excitations in the copper ...
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Article
Lanthanide Substitution Effects in Electron-Doped High-T c Superconductors Studied by Angle-Resolved Photoemission Spectroscopy
We have performed an angle-resolved photoemission study of the electron-doped high-T c superconductors (HTSCs) Sm1.85Ce0.15CuO4 (SCCO) and Eu1.85Ce0.15
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Article
Abrupt onset of a second energy gap at the superconducting transition of underdoped Bi2212
In underdoped high-TC superconducting copper oxides a pseudogap develops well above TC. Whether the pseudogap is a distinct phenomenon or the incoherent continuation of the superconducting gap above TC is one of ...
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Article
Three-dimensionality of field-induced magnetism in a high-temperature superconductor
Many physical properties of high-temperature superconductors are two-dimensional phenomena derived from their square-planar CuO2 building blocks. This is especially true of the magnetism from the copper ions. As ...
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Article
An unusual isotope effect in a high-transition-temperature superconductor
In conventional superconductors, the electron pairing that allows superconductivity is caused by exchange of virtual phonons, which are quanta of lattice vibration. For high-transition-temperature (high-Tc) super...
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Article
Enhanced immunogenicity of human papillomavirus 16 L1 genetic vaccines fused to an ER-targeting secretory signal peptide and RANTES
To increase the potency of human papillomavirus (HPV) DNA vaccines, we constructed a series of HPV16 L1 vaccines genetically fused with a secretion signal and/or immune cell-recruiting RANTES. The DNA vaccines...
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Article
Uniaxial Pressure Control of Superconductivity via Stripe Instability in La1.64Eu0.2Sr0.16CuO4 Crystals
Uni-axial pressure dependence of the superconducting critical temperature (T c) with a static stripe instability was examined in La1.64Eu0.2Sr0.16CuO4 single crystals. We find anisotropy in the dependence of T c ...
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Article
Universal nodal Fermi velocity
The mechanism that causes high-temperature superconductivity in copper oxide materials (cuprates) is still unknown, more than 15 years after it was discovered1. As the charge carriers (electrons or holes) are int...
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Article
CD8+ T cells from feline immunodeficiency virus (FIV) infected cats suppress exogenous FIV replication of their peripheral blood mononuclear cells in vitro
Feline immunodeficiency virus (FIV) isolates from domestic cats have been classified into five subtypes, designated A, B, C, D and E. Although many FIV-infected cats may have frequent contact with multiple st...
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Article
Antiferromagnetic order induced by an applied magnetic field in a high-temperature superconductor
One view of the high-transition-temperature (high-Tc) copper oxide superconductors is that they are conventional superconductors where the pairing occurs between weakly interacting quasiparticles (corresponding t...
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Article
Direct observations of vortices in a high-Tc superconductor (La1-xSrx)2CuO4 by scanning SQUID microscopy
In order to investigate the behavior of vortices in high-Tc superconductors under low magnetic fields, we have performed scanning SQUID microscopy (SSM) on the ab-surfaces of (La1-xSrx)2CuO4 (LSCO) single crystal...
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Article
Do** Dependence of the Effective Mass Anisotropy and Oxygen-Isotope Effect on the Magnetic Penetration Depth: The Role of Lattice Vibrations in High-Temperature Superconductivity
Studies of the critical behavior of high-temperature superconductors (HTSC) show the importance of the strong do** dependence of the effective mass anisotropy γ for the generic (T, x) phase diagram of these mat...
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Article
Vortex Phase Transition and Vortex State in (La0.954Sr0.046)2CuO4 Single Crystals
The vortex state above and below the first order transition was examined in (La 0.954 Sr 0.046 ) 2
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Article
In-Plane Fourfold Symmetry of the Upper Critical Field Observed in La(Sr)214 Single Crystals
In order to establish the existence of in-plane anisotropy of the upper critical field H c2 (θ), the out-of-plane resistivity ρ c m...
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Article
Production of functional rat liver PSP protein in Escherichia coli
An efficient Escherichia coli expression system for the production of a perchloric acid-soluble protein (PSP) has been constructed. Complementary DNA encoding PSP was inserted into an inducible bacterial express...
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Article
Detection of human papillomavirus (HPV) DNA in archival specimens of benign prostatic hyperplasia and prostatic cancer using a highly sensitive nested PCR method
Human papillomavirus is thought to be an etiological factor for urological tumors such as penile cancer. However, there is much conflicting data surrounding prostatic cancer. We recently established a highly ...
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Article
Magnetization curves of (La1−x Sr x )2CuO4−δ single crystals as functions ofx and δ
The second peak effect in magnetization curves for overdoped (La1−xSrx)CuO4−δ single crystals was examined by means of systematic variations of Sr content x and oxygen deficiency δ. Oxygen defect concentration wa...
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Article
LP-stabilization problem for linear stochastic control systems with multiplicative noise
For the deterministic case, a linear controlled system is alwayspth order stable as long as we use the control obtained as the solution of the so-called LQ-problem. For the stochastic case, however, a linear cont...
