Abstract
The anisotropic susceptibility of YBa2Cu3Ox (6.46{slanted equal to or less-than}x{slanted equal to or less-than}6.98) has been measured as a function of oxygen composition. Samples were prepared by a high temperature zirconium-getter annealing technique followed by magnetic orientation in epoxy. The normal state magnetic susceptibility was found to be weakly dependent on temperature. The room temperature values of the susceptibility decrease linearly as the oxygen composition decreases, whereas the difference in susceptibilities for magnetic fields parallel and perpendicular to the c-axis is nearly constant. This suggests that in this range of oxygen composition the susceptibility anisotropy comes mostly from the anisotropic part of the Van Vleck susceptibility and the spin susceptibility remains nearly isotropic. Neutron diffraction results show a significant oxygen occupancy at the O(5) site. Nuclear quadrupolar and magnetic resonance spectra of the plane copper indicate a marked degree of electronic disorder, confirming that there are microscopic structural effects from the high temperature zirconium-getter annealing procedure.
| Original language | English |
|---|---|
| Pages (from-to) | 95-102 |
| Number of pages | 8 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 201 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Oct 10 1992 |
Fingerprint
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Magnetic susceptibility anisotropy of grain-aligned oxygen-deficient Y1Ba2Cu3Ox (6.46{slanted equal to or less-than}x{slanted equal to or less-than}6.98). / Lee, Moohee; Tea, N.; Song, Y. Q.; Halperin, W. P.; Thiel, J.; Kennard, M. A.; Poeppelmeier, Kenneth R; Fang, M. M.; Welp, U.
In: Physica C: Superconductivity and its Applications, Vol. 201, No. 1-2, 10.10.1992, p. 95-102.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Magnetic susceptibility anisotropy of grain-aligned oxygen-deficient Y1Ba2Cu3Ox (6.46{slanted equal to or less-than}x{slanted equal to or less-than}6.98)
AU - Lee, Moohee
AU - Tea, N.
AU - Song, Y. Q.
AU - Halperin, W. P.
AU - Thiel, J.
AU - Kennard, M. A.
AU - Poeppelmeier, Kenneth R
AU - Fang, M. M.
AU - Welp, U.
PY - 1992/10/10
Y1 - 1992/10/10
N2 - The anisotropic susceptibility of YBa2Cu3Ox (6.46{slanted equal to or less-than}x{slanted equal to or less-than}6.98) has been measured as a function of oxygen composition. Samples were prepared by a high temperature zirconium-getter annealing technique followed by magnetic orientation in epoxy. The normal state magnetic susceptibility was found to be weakly dependent on temperature. The room temperature values of the susceptibility decrease linearly as the oxygen composition decreases, whereas the difference in susceptibilities for magnetic fields parallel and perpendicular to the c-axis is nearly constant. This suggests that in this range of oxygen composition the susceptibility anisotropy comes mostly from the anisotropic part of the Van Vleck susceptibility and the spin susceptibility remains nearly isotropic. Neutron diffraction results show a significant oxygen occupancy at the O(5) site. Nuclear quadrupolar and magnetic resonance spectra of the plane copper indicate a marked degree of electronic disorder, confirming that there are microscopic structural effects from the high temperature zirconium-getter annealing procedure.
AB - The anisotropic susceptibility of YBa2Cu3Ox (6.46{slanted equal to or less-than}x{slanted equal to or less-than}6.98) has been measured as a function of oxygen composition. Samples were prepared by a high temperature zirconium-getter annealing technique followed by magnetic orientation in epoxy. The normal state magnetic susceptibility was found to be weakly dependent on temperature. The room temperature values of the susceptibility decrease linearly as the oxygen composition decreases, whereas the difference in susceptibilities for magnetic fields parallel and perpendicular to the c-axis is nearly constant. This suggests that in this range of oxygen composition the susceptibility anisotropy comes mostly from the anisotropic part of the Van Vleck susceptibility and the spin susceptibility remains nearly isotropic. Neutron diffraction results show a significant oxygen occupancy at the O(5) site. Nuclear quadrupolar and magnetic resonance spectra of the plane copper indicate a marked degree of electronic disorder, confirming that there are microscopic structural effects from the high temperature zirconium-getter annealing procedure.
UR - http://www.scopus.com/inward/record.url?scp=0026938389&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026938389&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(92)90109-P
DO - 10.1016/0921-4534(92)90109-P
M3 - Article
VL - 201
SP - 95
EP - 102
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -