INTERPLAY BETWEEN SPIN AND CRYSTAL LATTICES IN ANTIFERROMAGNETIC YBa2Cu3O6.25
2002 ◽
Vol 16
(20n22)
◽
pp. 3208-3211
Keyword(s):
In-plane ρ ab and out-of-plane ρ c resistivity measurements were performed on the same antiferromagnetic YBa 2 Cu 3 O 6.25 single crystal over a wide range of temperatures T. ρ ab (T) exhibits two crossovers with decreasing T: a crossover from metallic to weak localization behavior at 175 K and a second crossover to two-dimensional chiral variable-range hopping VRH behavior at 115 K. The latter reflects the topologic excitations induced in the spin system. ρ c (T) displays an [Formula: see text] dependence at high T and a VRH type dependence below 115 K. The T derivative of ρ c (T) shows a kink at 32.65 K which we attribute to the antiferromagnetic ordering of the Cu(1) spins.
1998 ◽
Vol 80
(18)
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pp. 4020-4023
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1978 ◽
Vol 36
(1)
◽
pp. 68-69
Keyword(s):
2021 ◽
Vol 128
◽
pp. 114632
Keyword(s):
Keyword(s):
2005 ◽
Vol 17
(25)
◽
pp. 3735-3757
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