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Single crystal growth of T*-phase SmLa0.8Sr0.2CuO4
Sutjahja I.M.b, Nugroho A.A.b, Diantoro M.b, Tjia M.O.b, Gelders H., 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
[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]A single crystal of SmLa0.8Sr0.2CuO4 superconductor has been grown by means of the travelling solvent floating zone method. The growth was performed in a 1:20 mixture of oxygen and argon with a total pressure of 2 bar. The highest bulk superconducting transition temperature of 24 K was achieved after annealing the as grown crystal in 200 bar oxygen at 600°C for 7 days and 300°C for 3 days followed by slow cooling to room temperature. The structural refinement analysis of the XRD pattern for the as-grown and as-annealed crystal reveals an enlargement of the unit cell in all crystallographic directions, with the T-type and T′-type block layers indicating respectively c-direction expansion and shrinkage due to the annealing process. This result further shows an increase in oxygen filling at the apical site of the T-block, which explains the occurrence of bulk superconductivity in our crystal. © 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]Single crystal growth[/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]High-pressure oxygen annealing,Magnetization,Single crystal growth,Structural refinement,T*-phase of SmLa0.8Sr0.2CuO4[/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. We would also like to thank Ton Gortermulder for the help with SEM–EPMA analysis. This work was supported by Van der Waals–Zeeman Institute through KNAW under project no. 95-BTM-33 and Jurusan Fisika ITB through RUT project under contract no. 207/SP/RUT/BPPT/97.[/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)00615-3[/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]