[vc_empty_space][vc_empty_space]
Thermodynamic fluctuations in T(*)-phase SmLa0.8Sr0.2CuO4-δ single crystal
Sutjahja I.M.b, Darminto D.b,c, Sutarto R.b, Nugroho A.A.b, Tjia M.O.b, Menovsky A.A., Franse J.J.M.
a Van der Waals-Zeeman Instituut, Universiteit Van Amsterdam, Netherlands
b Department of Physics, Institut Teknologi Bandung, Indonesia
c Department of Physics, Institut Teknologi Sepuluh Nopember, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]Series of M-T measurements have been conducted on the T(*)-phase SmLa0.8Sr0.2CuO4-δ single crystal (Tcon≈24 K) in a broad range of magnetic field (1000 Oe-10 kOe) applied along the crystal c-axis. The result clearly establishes the existence of a crossing point (M*, T *), signifying an intrinsic thermal fluctuations effect in this system. The effective CuO2 interlayer distance deduced from this analysis is s≈15.50 Å, in a good agreement with the XRD refinement result. The effective dimensionality of fluctuations associated with the thermodynamic scaling properties of magnetization is analyzed on the basis of Ginzburg-Landau (GL) theory with the order parameter restricted to the lowest Landau level (GL-LLL) as well as the XY fluctuations model. It is shown that the data for the field above or equal to 8000 Oe exhibit distinct scaling behavior characteristic of the 2D GL-LLL fluctuation model. It also shows a clear departure from this and the corresponding 3D model in the lower field regime considered in this work. © 2001 Elsevier Science B.V. All rights reserved.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Thermodynamic fluctuations[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Crossing point,GL-LLL theory,Magnetization,SmLa0.8Sr0.2CuO4-δ single crystal,Thermodynamic scaling[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]We are grateful to FOM-ALMOS for the use of sample preparation and characterization facilities. This work was carried out under the cooperation of Van der Waals–Zeeman Institute and Jurusan Fisika ITB supported by KNAW under project no. 95-BTM-33. One of us (IMS) would like to acknowledge the European Science Foundation (ESF) program VORTEX for the full board accommodation during the conference.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/S0921-4534(01)01261-8[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]