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Title: De Hass-van Alphen effect in YBCO

Abstract

Measurement of the de Haas-van Alphen effect in YBa{sub 2}Cu{sub 3}O{sub 6.97} in pulsed, magnetic fields peaking at 100 T in powdered material with the field applied along the c-axis reveal two pieces of the Fermi surface. Their cross sections are 0.56 kT (0.054 {angstrom}{sup {minus}2}) and 0.78 kT (0.075 {angstrom}{sup {minus}2}) with effective masses of 2.8 and 4.4 respectively.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (USA)
Sponsoring Org.:
DOE/ER; National Science Foundation (NSF)
OSTI Identifier:
6474606
Report Number(s):
LA-UR-90-3781; CONF-901169-3
ON: DE91004828; CNN: DMR 90-16241
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 3. international symposium on superconductivity, Sendai (Japan), 6-9 Nov 1990
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HIGH-TC SUPERCONDUCTORS; DE HAAS-VAN ALPHEN EFFECT; BARIUM COMPOUNDS; COPPER OXIDES; FERMI LEVEL; MAGNETIC FIELDS; YTTRIUM COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ENERGY LEVELS; OXIDES; OXYGEN COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; 656100* - Condensed Matter Physics- Superconductivity

Citation Formats

Smith, J.L., Fowler, C.M., Freeman, B.L., Hults, W.L., King, J.C., and Mueller, F.M. De Hass-van Alphen effect in YBCO. United States: N. p., 1990. Web.
Smith, J.L., Fowler, C.M., Freeman, B.L., Hults, W.L., King, J.C., & Mueller, F.M. De Hass-van Alphen effect in YBCO. United States.
Smith, J.L., Fowler, C.M., Freeman, B.L., Hults, W.L., King, J.C., and Mueller, F.M. Mon . "De Hass-van Alphen effect in YBCO". United States. doi:. https://www.osti.gov/servlets/purl/6474606.
@article{osti_6474606,
title = {De Hass-van Alphen effect in YBCO},
author = {Smith, J.L. and Fowler, C.M. and Freeman, B.L. and Hults, W.L. and King, J.C. and Mueller, F.M.},
abstractNote = {Measurement of the de Haas-van Alphen effect in YBa{sub 2}Cu{sub 3}O{sub 6.97} in pulsed, magnetic fields peaking at 100 T in powdered material with the field applied along the c-axis reveal two pieces of the Fermi surface. Their cross sections are 0.56 kT (0.054 {angstrom}{sup {minus}2}) and 0.78 kT (0.075 {angstrom}{sup {minus}2}) with effective masses of 2.8 and 4.4 respectively.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}

Conference:
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  • The de Haas--van Alphen effect has been measured in the intermetallic compound AuPb/sub 2/ (body-centered tetragonal structure) by the modulation method in fields up to 100 kG. Thirtytwo frequency branches have been observed in the (100), (110), and (001) planes, and several cyclotron effective masses have been determined. The nearly-free-electron model has been used to construct a Fermi surface, which explains the large frequency branches and is compatible with the high-field magnetoresistance results of Bass, Edwards, and Schroeder. lt has been possible to determine the shape of some sheets by inversion of the de Haas- van Alphen data. The latticemore » parameters have been determined at room temperature and at liquid helium temperature. (auth)« less
  • The results of the experiment carried out by pulsed magnetic field techniques are presented. Four p-type PbTe samples were studied and over 30 oscillations observed. Three of the samples were cut from a single boule and yielded a hole density of 3x10/sup 1//sup 8//cm/sup 3/. The founth yielded a hohe density of about 1 x 10/sup 1//sup 8//cm/sup 3/. The samples were circular cylinders with the cylinder axis parallel to one of the 3 principal symmetry directions. The successive maxima and minima are plotted vs. B/sup -//sup 1/ for two different orientations, and the periods measured in the 3 symmetrymore » directions are listed. The only limitation for sensitivity of this method is that the materials must have E/sub F/> k (T/sub b/+ T/sub b/), where E/sub F/ is the Fermi energy measured relative to the edge of the band in question. Additional requirements are that the sample be degenerate (E/sub F/ > kT) and uniform carrier densities and long collision times (E/sub F/> kT) are needed. The requirements of a long cohlision time (E/sub F/> h/tau) is expressed in terms of density and mobility of the carrier as n/sup 2//sup ///sup 3/ mu > 10/sup 1// sup 5/ volt s ec for the case of a single spherical energy band. (P.C.H.)« less