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Magnetic relaxation of Nd1.85Ce0.15CuO4-δ single crystal
Nugroho A.A.b, Sutjahja I.M.b, Tjia M.O.b, Menovsky A.A., De Boer F.R., Frause J.J.M.
a Van der Waals-Zeeman Instituut, Univ. Van Amsterdam, V., Netherlands
b Jurusan Fisika, Inst. Teknologi Bandung, Jl G., 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]The vortex dynamics of a Nd1.85Ce0.15CuO4-δ single crystal was investigated in terms of its magnetic relaxation process. The measurement of time dependent magnetization was carried out in a magnetic field of 750 Oe applied parallel to the c-axis with temperature varying from 5 to 17 K, covering the second peak region and extending below as well as above its temperature range. The normalized relaxation rates S determined from the FC and ZFC data generally exhibit asymmetrical behaviours, and both feature narrow and shallow valleys, interrupting the otherwise monotonic rise of the curve. In particular, the ZFC data for S(T) displays an additional maximum somewhat similar to those found in BSCCO and TBCCO. The data are further analyzed on the basis of collective flux creep model.[/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]Flux creep[/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][/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 thank S. Ramakrishnan for useful discussion. This work was supported by Van der Waals-Zeeman Institute 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(99)00706-6[/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]