Mossbauer observation of the quantum levels of Fe3+ ions doped in 1D Ising ferromagnet Ca3CO2O6

被引:42
作者
Kageyama, H [1 ]
Kawasaki, S [1 ]
Mibu, K [1 ]
Takano, M [1 ]
Yoshimura, K [1 ]
Kosuge, K [1 ]
机构
[1] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN
关键词
D O I
10.1103/PhysRevLett.79.3258
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have measured the Mossbauer effect of Fe-57(3+) (S = 5/2) ions doped in a 1D Ising ferromagnet Ca3Co2O6. The spectra with hyperfine fields corresponding to the exchange polarized Fe electron spins with m(z) = +/-5/2, +/-3/2, +/-1/2 are first observed in the magnetically dense system for T less than or equal to 20 K, suggesting slow magnetic relaxation at the Fe3+ sites. The key lies in the large difference between magnetic characters of the host (Ising) and impurity (Heisenberg) spins, making the impurity spins extremely isolated in the host 1D Ising spin system.
引用
收藏
页码:3258 / 3261
页数:4
相关论文
共 15 条
[11]   HYPERFINE STRUCTURE OF 14.4-KEV GAMMA RAY OF 57FE IN HYDRATED FERRIC AMMONIUM SULFATE AS A FUNCTION OF MAGNETIZATION OF SALT [J].
OBENSHAIN, FE ;
ROBERTS, LD ;
COLEMAN, CF ;
FORESTER, DW ;
THOMSON, JO .
PHYSICAL REVIEW LETTERS, 1965, 14 (10) :365-+
[12]   MOSSBAUER EFFECT IN METALLIC IRON [J].
PRESTON, RS ;
HEBERLE, J ;
HANNA, SS .
PHYSICAL REVIEW, 1962, 128 (05) :2207-&
[13]   MOSSBAUER EFFECT HYPERFINE STRUCTURE OF TRIVALENT FE-57 IN CORUNDUM [J].
WERTHEIM, GK ;
REMEIKA, JP .
PHYSICS LETTERS, 1964, 10 (01) :14-15
[14]   MOSSBAUER HYPERFINE SPECTRA OF FE3+ IN CORUNDUM - MAGNETIC- AND CRYSTAL-FIELD EFFECTS [J].
WICKMAN, HH ;
WERTHEIM, GK .
PHYSICAL REVIEW, 1966, 148 (01) :211-&
[15]   MOSSBAUER LINE BROADENING IN TRIVALENT IRON COMPOUNDS [J].
WIGNALL, JWG .
JOURNAL OF CHEMICAL PHYSICS, 1966, 44 (06) :2462-&