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Peak effects and the solid vortex phase of a (formula presented)-phase (formula presented) single crystal
Sutjahja I.M.a, Nugroho A.A.a, Tjia M.O.b, Menovsky A.A.a, Franse J.J.M.a
a Van der Waals–Zeeman Instituut, Universiteit van Amsterdam, Netherlands
b Jurusan Fisika, 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]The isothermal magnetization curves obtained from a superconducting (formula presented)-phase (formula presented) single crystal have demonstrated the existence of distinct peak effect in a large temperature range, persisting up to the vicinity of the superconducting critical temperature (formula presented) K). The magnetization curves also exhibit the remarkable feature of zero-field peaking and its enhancement at lower temperature. Analysis of the associated vortex phase diagram further establishes the role of geometrical barrier in the retardation of vortex penetration at high temperature and that of surface barrier at lower temperature. The temperature dependence of the second peak field is also found to conform with existing models at the appropriate temperature regimes. Additionally, the irreversibility line shows a sign reversal of its slope at a field position around (formula presented) indicating two-dimensional melting at higher field. Nevertheless, the temperature dependent behavior of the second peak onset field is at variance with other published results and defies explanation on the basis of existing theoretical models. © 2001 The American Physical Society.[/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][/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][/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/10.1103/PhysRevB.64.134502[/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]