Descrizione
Descrizione
<p>The laboratory is devoted to the experimental investigation of the electronic band structure of surfaces and two-dim ensional (2D) materials by means of high-resolution angle-resolved ultraviolet photoelectron spectroscopy (ARPES). The ARPES apparatus, working at high energy and angle resolutions, operating at low temperatures, is contained into an ultra-high-vacuum (UHV) chamber, UHV-connected to a preparation chamber equipped withseveral other characterisation methods and ancillary facilities for samples preparation and 2D materials growth, and is provided with a small UHV chamber for a fast load-lock introduction chamber.</p>
<p>In the following, the main characteristics of the apparatus:</p>
<p>• ARPES hemispherical electron analyser: Scienta SES-200, 4 meV best energy resolution, <0.1◦ angular resolution, 1-50 eV pass-energy range, multi-channel detector (MCD, ±8◦ angular span and 10% of pass-energy energy span);</p>
<p>• ARPES photon source: Omicron-Scienta VUV-5000 monochromatised MW-excited He source, main lines HeIα at 21.218 eV and HeIIα at 40.814 eV, up to HeIIδ at 52.241 eV;</p>
<p>• ARPES manipulator: 5-degrees of freedom UHV manipulator, with precision rotation of the azimuthal and polar angles, cryostat to liquid nitrogen temperature, electron-bombardment heater up to 1200◦C;</p>
<p>• Low-Energy Electron Diffraction (LEED): Specs retractable ErLEED system, with LEED and Auger modules;</p>
<p>• Ion Gun: Omicron ISE10 0.2-5 keV energy range, Ar ion source;</p>
<p>• Mass Spectrometer: residual gas analyser SRS RGA 300, 1-300 a.m.u. range;</p>
<p>• Gas line, equipped with several ports for small bottles and UHV-connected through a leak-valve to the main chamber; oxygen and C2H4 sources mounted, the latter for graphene preparation on metals via temperature programmed growth;</p>
<p>• Organic-molecular beam epitaxy (O-MBE) cells; high-temperature electron-bombardment based evaporator for transition metals; quartz crystal thickness monitor; cleaver, other ancillary facilities for sample preparation, etc.</p>
<p>Details at:</p>
<p><a href="https://drive.google.com/file/d/1h3-oAaZC7jxvg1d4j3Zhfrrl-A1-n2Hu/view">ARPES_laboratory.pdf - Google Drive</a></p>
<p>In the following, the main characteristics of the apparatus:</p>
<p>• ARPES hemispherical electron analyser: Scienta SES-200, 4 meV best energy resolution, <0.1◦ angular resolution, 1-50 eV pass-energy range, multi-channel detector (MCD, ±8◦ angular span and 10% of pass-energy energy span);</p>
<p>• ARPES photon source: Omicron-Scienta VUV-5000 monochromatised MW-excited He source, main lines HeIα at 21.218 eV and HeIIα at 40.814 eV, up to HeIIδ at 52.241 eV;</p>
<p>• ARPES manipulator: 5-degrees of freedom UHV manipulator, with precision rotation of the azimuthal and polar angles, cryostat to liquid nitrogen temperature, electron-bombardment heater up to 1200◦C;</p>
<p>• Low-Energy Electron Diffraction (LEED): Specs retractable ErLEED system, with LEED and Auger modules;</p>
<p>• Ion Gun: Omicron ISE10 0.2-5 keV energy range, Ar ion source;</p>
<p>• Mass Spectrometer: residual gas analyser SRS RGA 300, 1-300 a.m.u. range;</p>
<p>• Gas line, equipped with several ports for small bottles and UHV-connected through a leak-valve to the main chamber; oxygen and C2H4 sources mounted, the latter for graphene preparation on metals via temperature programmed growth;</p>
<p>• Organic-molecular beam epitaxy (O-MBE) cells; high-temperature electron-bombardment based evaporator for transition metals; quartz crystal thickness monitor; cleaver, other ancillary facilities for sample preparation, etc.</p>
<p>Details at:</p>
<p><a href="https://drive.google.com/file/d/1h3-oAaZC7jxvg1d4j3Zhfrrl-A1-n2Hu/view">ARPES_laboratory.pdf - Google Drive</a></p>
Responsabile
Responsabile
| Nome | Struttura | |
|---|---|---|
| Carlo Mariani | Carlo.Mariani@uniroma1.it | DIPARTIMENTO DI FISICA |
Dipartimento o centro ospitante
Dipartimento o centro ospitante
DIPARTIMENTO DI FISICA
Attività
Attività
- Didattica 30 %
- Ricerca 70 %
- Servizio 0 %
ERC scientific sector
ERC scientific sector
PE3_4
,
PE3_10
,
PE4_4
Keywords
Keywords
2D nanostructures
,
3D porous graphene
KET
KET
Advanced materials
,
Nanotecnologie
Personale docente e di ricerca
Personale docente e di ricerca
| Nome | Struttura | |
|---|---|---|
| Maria Grazia Betti | mariagrazia.betti@uniroma1.it | DIPARTIMENTO DI FISICA |
| Dario Marchiani | dario.marchiani@uniroma1.it | DIPARTIMENTO DI FISICA |
| Sunaina Rafiq | sunaina.rafiq@uniroma1.it | DIPARTIMENTO DI SCIENZE DI BASE ED APPLICATE PER L'INGEGNERIA |
| Sammar Tayyab | tayyab.2025698@studenti.uniroma1.it | DIPARTIMENTO DI SCIENZE DI BASE ED APPLICATE PER L'INGEGNERIA |
| Riccardo Frisenda | riccardo.frisenda@uniroma1.it | DIPARTIMENTO DI FISICA |
Strumenti e attrezzature
Strumenti e attrezzature
| Nome | Descrizione | Servizi offerti |
|---|---|---|
| ARPES | Scienta SES-200 multichannel analyzer; Omicron-Scienta VUV-5000 monochromatised MW-excited He source; manipulator: 5-degrees of freedom UHV manipulator (heatbale and coolable sample holder); Low-Energy Electron Diffraction (LEED), | Study of the band structure of ordered systems. |
| Printer | ||
| Computers |
Ubicazione
Ubicazione
| Nome stanza | Edificio | Piano |
|---|---|---|
| S17 | CU013 | -1 |
