Magnetic phase diagram and low-dimensional excitations of hexagonal UNi4B

Heat Capacity and Magnetic Phase Diagram of the Low-Dimensional Antiferromagnet Y2BaCuO5

A study by specific heat of a polycrystalline sample of the low-dimensional magnetic system Y2BaCuO5 is presented. Magnetic fields up to 14 T are applied and permit to extract the (T ,H) phase diagram. Below μ0H ∗ ≃ 2 T, the Néel temperature, associated with a three-dimensional antiferromagnetic long-range ordering, is constant and equals TN = 15.6 K. Above H ∗, TN increases linearly with H and...

Phase diagram and excitations of a Shiba molecule

Second Low-Temperature Phase Transition in Frustrated UNi4B

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Magnetic Structure and Phase Diagram of TmB4

Magnetic structure of single crystalline TmB4 has been studied by magnetization, magnetoresistivity, and specific heat measurements. A complex phase diagram with different antiferromagnetic phases was observed below TN1 = 11.7 K. Besides the plateau at half-saturated magnetization (1/2 MS), also plateaus at 1/9, 1/8 and 1/7 of MS were observed as a function of applied magnetic field B ‖ c. From...

Surface Magnetic Phase Diagram of Tetragonal Manganites

To gain insights into the fundamental and characteristic features of the surface of doped manganites, we constructed a general magnetic phase diagram of La1−xSrxMnO3 (001) surfaces in the plane spanned by x and the bulk tetragonal distortion c/a, from the first-principles calculations. We found that the surfaces are quite different from the bulk in the sense that both the (La, Sr)O and MnO2 ter...