Observation of a liquid-gas-type transition in the pyrochlore spin ice compound Dy2Ti2O7 in a magnetic field

Physical Review Letters

Volumn 90, Issue 20, 2003, Pages

  Sakakibara, T ^a   Tayama, T ^a   Hiroi, Z ^a   Matsuhira, K ^b   Takagi, S ^b  

^a UNIVERSITY OF TOKYO   (Japan)

^b KYUSHU INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

MAGNETIC FIELD EFFECTS; MAGNETIC HYSTERESIS; MAGNETIC VARIABLES MEASUREMENT; MAGNETIZATION; NUMERICAL ANALYSIS; PHASE DIAGRAMS; PHASE TRANSITIONS; SPECIFIC HEAT;

DEMAGNETIZING FIELD EFFECTS; LIQUID-GAS-TYPE TRANSITION; PYCHLORE SPIN ICE COMPOUNDS;

DYSPROSIUM COMPOUNDS;

EID: 0037789426     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

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19. cr becomes ∼ 0.18 K.
20. At low temperatures, the magnetization is so large that we further made a demagnetizing field corection using a demagnetizing factor of -0.08 obtained for an oblate ellipsoid with the aspect ratio of 8 [R. M. Bozorth, Ferromagnetism (D. van Nostrand Co., New York, 1951).] The basic features of the present data are, however, free from this correction.
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22. c shown in Fig. 4 is slightly higher than those data in Fig. 3.
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24. Ising ferromagnet is known to show a phase diagram of liquid-gas type, with a line of the first-order transition along the H = 0 line. In that case the analogy is purely on symmetry, and no latent heat is expected across the first-order transition because the phase boundary is parallel to the temperature axis.