[et_pb_section fb_built=”1″ _builder_version=”4.9.4″ _module_preset=”default” background_color=”#e4e4e4″ positioning=”none” custom_padding=”12px||6px|||” sticky_position=”top” border_width_bottom=”2px” border_color_bottom=”#f4f4f4″ box_shadow_style=”preset3″ global_colors_info=”{}”][et_pb_row column_structure=”1_3,1_3,1_3″ use_custom_gutter=”on” gutter_width=”1″ make_equal=”on” _builder_version=”4.9.4″ _module_preset=”default” max_width=”80%” custom_margin=”|auto|8px|auto||” custom_padding=”1px||0px|||” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.9.4″ _module_preset=”default” border_color_all=”#FFFFFF” global_colors_info=”{}”][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.9.4″ _module_preset=”default” background_enable_color=”off” link_option_url=”http:\/\/sai.unizar.es\/solPrestSAI\/” link_option_url_new_window=”on” border_radii=”on|15px|15px|15px|15px” border_width_all=”2px” border_color_all=”#bababa” global_colors_info=”{}” background__hover_enabled=”on|hover” background_color__hover=”#FFFFFF” background_enable_color__hover=”on”][et_pb_text _builder_version=”4.14.2″ _module_preset=”default” text_font=”|||on|||||” text_text_color=”#333333″ text_font_size=”14px” link_text_color=”#333333″ background_enable_color=”off” custom_margin=”||4px|||” custom_padding=”|5px||5px|true|true” hover_enabled=”0″ border_color_all=”RGBA(0,0,0,0)” border_color_right=”#FFFFFF” border_color_left=”#FFFFFF” global_colors_info=”{}” link_text_color__hover_enabled=”on|hover” link_text_color__hover=”#4370b4″ sticky_enabled=”0″]<\/p>\n
Access on demand<\/strong><\/a><\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.9.4″ _module_preset=”default” border_color_all=”#FFFFFF” global_colors_info=”{}”][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.9.4″ _module_preset=”default” custom_padding=”25px|||||” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.9.4″ _module_preset=”default” max_width=”75%” custom_padding=”||6px|||” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.9.4″ _module_preset=”default” text_font_size=”16px” text_line_height=”2em” ul_line_height=”2em” header_2_font=”|700|||||||” header_2_font_size=”23px” global_colors_info=”{}”]<\/p>\n The Aahrus is a combined STM and non-contact AFM head which operates a KolibriTM sensor under Ultra-high-vacuum conditions (P<10-10 mbar). Apart from allowing for imaging of metallic and insulating samples with atomic resolution, its unique feature is a radiative filament which can heat the sample up to 900\u00baC while keeping the tip and scanner protected near room temperature. This accessory, together with the possibility of dosing gases and evaporating materilas in-situ during scanning, makes the Aahrus an excellent instrument to explore the real-time chemical and catalytical activity of a surface by bringing the system to artificial thermodynamic conditions which can be tuned to the particular time resolution required for each experiment.<\/p>\n The microscope is connected under UHV conditions to the JT-STM facility, which offers all kind of sample preparation accessories and allows users to exchange the very same sample between both microscopes. The Aahrus is regularly applied to real-time monitoring of thermally activated processes such as chemical vapour deposition (for instance graphene growth on metallic surfaces), on-surface synthesis, metal epitaxy and self-assembled organic monolayers.<\/p>\n [\/et_pb_text][et_pb_text disabled_on=”on|on|on” _builder_version=”4.9.4″ _module_preset=”default” text_font=”|700||on|||||” text_text_color=”#FFFFFF” background_color=”#4370b4″ custom_padding=”15px||15px||true|false” link_option_url=”\/wp-content\/uploads\/2021\/09\/Nova_SPA.pdf” border_radii=”on|15px|15px|15px|15px” disabled=”on” global_colors_info=”{}”]<\/p>\n Download PDF<\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/lma.unizar.es\/wp-content\/uploads\/2021\/10\/aahrus-1.jpg” title_text=”aahrus-1″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.9.4″ _module_preset=”default” custom_padding=”21px||16px|||” global_colors_info=”{}”][et_pb_row use_custom_gutter=”on” make_equal=”on” _builder_version=”4.9.4″ _module_preset=”default” max_width=”75%” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_tabs active_tab_background_color=”#2ea3f2″ inactive_tab_background_color=”#4370b4″ active_tab_text_color=”#FFFFFF” _builder_version=”4.9.4″ _module_preset=”default” tab_text_color=”#FFFFFF” tab_font=”|700||on|||||” tab_font_size=”15px” tab_line_height=”3em” custom_margin=”||||false|false” custom_padding=”||||false|false” border_radii=”on|15px|15px|15px|15px” global_colors_info=”{}”][et_pb_tab title=”What can be done with it?” _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n Scanning Probe Microscopy and spectroscopy:<\/b><\/p>\n Real-time physical-chemical characterization of 2D materials:<\/b><\/p>\n [\/et_pb_tab][et_pb_tab title=”Technical specifications” _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n Temperature range: 100 (LN2 flow cryostat) to 1200 K (radiative heater)<\/span><\/p>\n<\/li>\n <\/span>LN2 hold time: 24 hours<\/span><\/p>\n<\/li>\n <\/span>Z topographic noise: 5 pm peak-peak; <2000 fm\/\u00d6Hz<\/span><\/p>\n<\/li>\n <\/span>Thermal drift at low temperatures: Standard STM grade images can be obtained with scan time <5 min at temperatures <250 K.<\/span><\/p>\n<\/li>\n <\/span>Thermal drift at high temperatures: For T<600 \u00baC standard STM grade images can be obtained after thermal relaxation of about 15 min. For 600 \u00baC < T < 900 \u00baC scan time is limited to 5-10 minutes.<\/span><\/p>\n<\/li>\n <\/span>Minimum stable oscillation amplitude of Kolibri sensor for nc-AFM: 90 pm<\/span><\/p>\n<\/li>\n <\/span>Force resolution: <1 pN<\/span><\/p>\n<\/li>\n <\/span>Maximum operating pressure: 1\u00b410<\/span>-5<\/span> mbar.<\/span><\/p>\n<\/li>\n <\/span>In-situ tip conditioning<\/span><\/p>\n<\/li>\n<\/ul>\n [\/et_pb_tab][et_pb_tab title=”Sample preparation” _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n (shared with SPECS JT-STM) 3 ion-guns, 3 e-beam heaters (100-1300\u00baC). 1 flash heater (>2000 \u00baC in 25 seconds), low energy electron diffraction and Auger spectroscopy (SPECS ErLEED 150), quadrupole mass spectrometer for residual gas analysis, 7 leak-valves for controlled gas injection, 1 SPECS EBE4 and 1 SPECS EBE1 e-beam evaporators, 2 parking stations for mini-UHV transportable organic evaporators, 1 high temperature effusion cell (CreaTec)<\/span><\/p>\n <\/p>\n [\/et_pb_tab][\/et_pb_tabs][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.9.4″ _module_preset=”default” custom_padding=”14px||40px|||” global_colors_info=”{}”][et_pb_row _builder_version=”4.9.4″ _module_preset=”default” max_width=”75%” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/lma.unizar.es\/wp-content\/uploads\/2021\/10\/Fig2-Aahrus-Web_elecmi-05_2020.png” title_text=”Fig2-Aahrus-Web_elecmi-05_2020″ _builder_version=”4.9.4″ _module_preset=”default” custom_margin=”||22px|||” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.9.4″ _module_preset=”default” text_font=”||on||||||” text_font_size=”14px” text_line_height=”2em” global_colors_info=”{}”]<\/p>\n Atomically resolved Ag(111) surface in nc-AFM mode. Kolibri PLL parameters nres~1 MHz, Q~25000, oscillation amplitude 200 pm, DnSP=0.2 Hz (positive feedback range), 2 lines\/second.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” make_equal=”on” _builder_version=”4.9.4″ _module_preset=”default” max_width=”75%” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/lma.unizar.es\/wp-content\/uploads\/2021\/10\/Fig1-Aahrus-Web_elecmi-05_2020.png” title_text=”Fig1-Aahrus-Web_elecmi-05_2020″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.9.4″ _module_preset=”default” text_font=”||on||||||” text_font_size=”14px” text_line_height=”2em” global_colors_info=”{}”]<\/p>\n Fig 2. Sequential set of images of Tm\/W(110) while increasing the temperature. At RT an amorphous deposit is obtained. At 400\u00baC the Tm atoms arrange epitaxially over the W(110) forming a Moir\u00e9e patter. At 750-800 \u00baC WC are segregated from where the Tm is expelled. At 900\u00baC the Tm desorbs and the bare W(110) surface remains.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.9.4″ _module_preset=”default” max_width=”75%” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/lma.unizar.es\/wp-content\/uploads\/2021\/10\/Fig3-Aahrus-Web_elecmi-05_2020.jpg” title_text=”Fig3-Aahrus-Web_elecmi-05_2020″ _builder_version=”4.9.4″ _module_preset=”default” custom_margin=”||23px|||” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.9.4″ _module_preset=”default” text_font=”||on||||||” text_font_size=”14px” text_line_height=”2em” global_colors_info=”{}”]<\/p>\n ig 3. Time evolution of CVD of propene on Ni(111) at 550 \u00baC. After taking the left-most frame showing a clean Ni surface with fuzzy step edges due to the atoms mobility at this temperature, a partial pressure of propene of 1\uf0b410-6 mbar is dosed into the chamber. The second panel shows the formation front of a Ni2C monolayer. After a few minutes the whole scan area is covered by Ni2C (as confirmed by the atomically resolved images in the right panel), where the atomic steps have been wiped out due to microscale mass transport of Ni to accommodate the lower density phase of the product.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.9.4″ _module_preset=”default” min_height=”179px” custom_margin=”9px||-9px|||” custom_padding=”0px||4px|||” global_colors_info=”{}”][et_pb_row use_custom_gutter=”on” gutter_width=”4″ _builder_version=”4.9.4″ _module_preset=”default” max_width=”75%” custom_margin=”0px|auto||auto||” custom_padding=”55px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_gallery gallery_ids=”2911,2910,2909″ posts_number=”3″ show_title_and_caption=”off” show_pagination=”off” module_class=”ilogos” _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_gallery][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.9.4″ _module_preset=”default” use_background_color_gradient=”on” background_color_gradient_start=”#000000″ background_color_gradient_end=”rgba(0,0,0,0.48)” background_color_gradient_overlays_image=”on” background_image=”https:\/\/lma.unizar.es\/wp-content\/uploads\/2021\/10\/render-lma-1.jpg” custom_margin=”9px|||||” custom_padding=”||42px|||” saved_tabs=”all” global_colors_info=”{}”][et_pb_row column_structure=”1_3,1_3,1_3″ use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.9.4″ _module_preset=”default” max_width=”75%” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.9.4″ _module_preset=”default” text_text_color=”#FFFFFF” text_line_height=”2em” global_colors_info=”{}”]<\/p>\n Laboratorio de Microscop\u00edas Avanzadas\n<\/p>\n We are a unique initiative at national and international levels. We provide the scientific and industrial community with the most advanced infrastructures in Nanofabrication, Local Probe and Electron Microscopies for the observation, characterization, nanopatterning and handling of materials at atomic and molecular scale.[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.9.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.9.4″ _module_preset=”default” text_text_color=”#FFFFFF” link_text_color=”#FFFFFF” global_colors_info=”{}”]<\/p>\n Contact information<\/p>\n Campus R\u00edo Ebro, Edificio Edificio I+D+i<\/p>\n Tel.:(+34) 976 762 980 <\/strong><\/a><\/span>\n
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