Phase diagram of the random-field Ising system Fe{sub 0.60}Zn{sub 0.40}F{sub 2} at intense fields

Conference · Wed Oct 01 04:00:00 EDT 1997

OSTI ID:537344

Montenegro, F C; Lima, K A ^[1]; Torikachvili, M S ^[2]; Lacerda, A H ^[3]

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1. UFPE, Recife, Pernambuco (Brazil). Dept. de Fisica
2. San Diego State Univ., CA (United States). Dept. of Physics
3. Los Alamos National Lab., NM (United States). National High Magnetic Field Lab.

The critical and irreversibility phase boundaries of the d = 3 diluted uniaxial antiferromagnet Fe{sub 0.60}Zn{sub 0.40}F{sub 2} have been determined under strong external magnetic fields by means of magnetization measurements. The data reveal that the random-field-induced glassy phase, previously observed in the upper part of the (H,T) phase diagram for highly diluted samples (x {approx_equal} 0.3), is extended to higher values of x.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Fundacao Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) (Brazil); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Sao Paulo, SP (Brazil); Financiadora de Estudos e Projectos (FINEP) (Brazil)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 537344
• Report Number(s): LA-UR--97-1956; CONF-970713--1; ON: DE97008343
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
HYSTERESIS
IRON FLUORIDES
MAGNETIC PROPERTIES
NEEL TEMPERATURE
PARAMAGNETISM
PHASE DIAGRAMS
ZINC FLUORIDES