Ferromagnetic ordered phase of quantum spin ice system Yb{sub 2}Ti{sub 2}O{sub 7} under [001] magnetic field
- Department of Physics, School of Science and Technology, Meiji University, Kawasaki, 214-8571 (Japan)
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, 277-8581 (Japan)
Measurements of magnetization (M) and specific heat (C) under a [001] magnetic field were carried out on a single crystal of a quantum spin ice system Yb{sub 2}Ti{sub 2}O{sub 7} in order to investigate a feature of the transition occurred at T{sub C} ∼ 0.2 K. As a result of applying the magnetic field μ{sub 0}H < 0.1 T, the C/T − T curve structure and transition temperature barely changed. On the other hand, applying the more than 0.1 T magnetic field, the C/T − T curve structure drastically change from sharp peak structure to broad peak one, and the broad peak temperature of C/T − T curves linearly increases with increasing magnetic field (H). In the magnetic field μ{sub 0}H < 0.1 T, the magnetization drastically increases around T{sub C} ∼ 0.2 K with decreasing T, and a thermal hysteresis loop of the M − T curve is observed. With increasing H, the thermal hysteresis loop of the M − T curves disappears above μ{sub 0}H{sub C} = 0.1 T. We can understand these results, where Yb{sub 2}Ti{sub 2}O{sub 7} exhibits a first-order ferromagnetic transition associated with the latent heat corresponding to the energy of μ{sub 0}H{sub C} = 0.1 T. Basis of the H − T phase diagram along [001] magnetic field, the feature of the transition occurred at T{sub C} ∼ 0.2 K in quantum spin ice system Yb{sub 2}Ti{sub 2}O{sub 7} is discussed.
- OSTI ID:
- 22611730
- Journal Information:
- AIP Advances, Vol. 6, Issue 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
- Country of Publication:
- United States
- Language:
- English
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