Phase Transition Study of Zn (BF_4)_26H_2O by EPR of Diluted Ni^<2+> between 98 and 298K

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概要

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• EPR of Ni" diluted in single crystal of Zn(BF.).6H,0 was recorded between98 and 298 K. The thermal variations of the spin Hamiltonian pararneters g,7, g.and D, and the Iinewidth of tlae spectra showed anomalous be]?avior whencompared with previous work in the isomorphous Ni(BF.).6H,0. TIIIC anomaliesare attributed to a phase transition of second order with 1.:181 K. D variesIinearly with temperature and the linewidth as 4H=a-fbT' simiIa.r to verifiedpreviously in the Ni compound. The phase transition occurs with a change inthe coefficients of these laws. From the Iinewidth, a spin-lattice rel,axation timeT. is determined as 10 ' to 10-" s.

• 社団法人日本物理学会の論文
• 1980-05-15

著者

• Domiciano Joao

  Instituto De Fisica Universidade De Sao Paulo

• Sano Walter

  Instituto De Fisica Universidade De Sao Paulo

• JURAITIS Klemensas

  Instituto de Fisica,Universidade de Sao Paulo

• ISOTANI Sadao

  Instituto de Fisica,Universidade de Sao Paulo

• Isotani Sadao

  Instituto De Fisica Da Universidade De Sao Paulo

• Juraitis Klemensas

  Instituto De Fisica Universidade De Sao Paulo

関連論文

• Phase Transition Study of Zn (BF_4)_26H_2O by EPR of Diluted Ni^ between 98 and 298K
• Hyperfine and Superhyperfine Interactions in the EPR Perpendicular Spectra of Cu^ in NH_4Br (Acidic)
• EPR of Crystals of Na_4[(Fe EDTA)_2O]12H_2O
• EPR Spectra of Ni (BF_4)_26H_2O between 100 and 300 K
• The EPR Spectra of X-Ray Irradiated Gypsum

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