Preprint

ESR Spectrometry of High-Temperature Superconductors with Temperature-Modulation-Based Thermoregulation

M. K. AlievInstitute of Applied Physics, Tashkent State University, Tashkent, UzbekistanG. R. AlimovInstitute of Applied Physics, Tashkent State University, Tashkent, UzbekistanI. KholbaevInstitute of Applied Physics, Tashkent State University, Tashkent, UzbekistanТ.М. MuminovInstitute of Applied Physics, Tashkent State University, Tashkent, UzbekistanB. A. OlimovInstitute of Applied Physics, Tashkent State University, Tashkent, UzbekistanB. Yu. SokolovInstitute of Applied Physics, Tashkent State University, Tashkent, UzbekistanR. R. UsmanovInstitute of Applied Physics, Tashkent State University, Tashkent, Uzbekistan

arXiv (Cornell University)repository1998en

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Annotatsiya

A light-beam-assisted temperature-control system operating within a temperature range from 77 to 180 K is developed for investigating the absorption of electromagnetic waves by high-temperature superconductors in the vicinity of superconducting transition with an ESR spectrometer. The advantage of this system is the feasibility of modulating the temperature of a sample with a frequency of 80 Hz and amplitude of 0.01 -0.1 K. The rms temperature instability over a 5-min time interval is within 0.06 K, the temperature gradient in a sample is 0.01 K/mm for T=90 K, and the system relaxation time is 1 - 10 s. The microwave absorption peaks in the vicinity of the superconducting transition of an Y-Ba-Cu-O, single crystal were first measured at (the simultaneous application of magnetic and temperature modulations.

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Mavzular

Physics of Superconductivity and Magnetism Acoustic Wave Resonator Technologies Solid-state spectroscopy and crystallography

Identifikatorlar

DOI: 10.48550/arxiv.cond-mat/9809372

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