Magnetotransport properties of antiferromagnetic YBa{sub 2}Cu{sub 3}O{sub 6.25} single crystals.
In-plane {Delta}{rho}{sub ab}/{rho}{sub ab} and out-of-plane {Delta}{rho}{sub c}/{rho}{sub c} magnetoresistivities of antiferromagnetic YBa{sub 2}Cu{sub 3}O{sub 6.25} single crystals were measured in magnetic fields H applied along the ab-plane. {Delta}{rho}{sub ab}/{rho}{sub ab} is a superposition of two components: The first component is strongly in-plane anisotropic, changing sign from negative when H{sup {parallel}}/ to positive when H{sup {perpendicular}}/. The second component is positive, quadratic in H, and isotropic in the ab-plane. {Delta}{rho}{sub c}/{rho}{sub c} displays a fourfold symmetry upon in-plane rotation of the magnetic field, with maxima along the easy axes of antiferromagnetic spin ordering and minima along unfavorable directions of spin orientation (45{sup o} from the Cu-O-Cu bonds).
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- USDOE; NSF
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 961127
- Report Number(s):
- ANL/MSD/JA-44809
- Journal Information:
- Physica C, Journal Name: Physica C Journal Issue: 2001 Vol. 364-365; ISSN 0921-4534; ISSN PHYCE6
- Country of Publication:
- United States
- Language:
- ENGLISH
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