2 SUCCESSIVE SPIN-GLASS TRANSITIONS IN NONDILUTED HEISENBERG-LIKE SPIN-GLASS NI0.42MN0.58TIO3

Authors
KAWANO H YOSHIZAWA H ITO A MOTOYA K
Citation
H. Kawano et al., 2 SUCCESSIVE SPIN-GLASS TRANSITIONS IN NONDILUTED HEISENBERG-LIKE SPIN-GLASS NI0.42MN0.58TIO3, Journal of the Physical Society of Japan, 62(8), 1993, pp. 2575-2578
Citations number
17
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
62
Issue
8
Year of publication
1993
Pages
2575 - 2578
Database
ISI
SICI code
0031-9015(1993)62:8<2575:2SSTIN>2.0.ZU;2-W
Abstract
Two successive spin glass (SG) transitions were observed in a nondilut ed Heisenberg-like SG system with a weak planar single-ion anisotropy, Ni0.42Mn0.58TiO3. The moment lying in the easy plane freezes at T(SG) parallel-to=9.5+/-1.0 K, while the remaining component perpendicular t o the easy plane freezes at a lower temperature T(SG)perpendicular-to= 6.0+/-0.5 K, being consistent with theory on the Heisenberg-like SG sy stem having a weak single-ion anisotropy. The diffuse scattering profi le is well described by a Lorentzian in an intermediate phase T(SG)par allel-to greater-than-or-equal-to T > T(SG)perpendicular-to as well as in a paramagnetic phase T > T(SG)parallel-to, whereas it strongly dev iates from the Lorentzian below T(SG)perpendicular-to.