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PHOIBOS 225 2D-CMOS/-CCD

Ultra High Resolution Hemispherical Energy Analyzer with 2D CMOS/CCD detector for XPS, ARPES, ISS and LEISS with 225 mm Mean Radius

The PHOIBOS 225 hemispherical energy analyzer is high resolution solution for photoelectron spectroscopy. This analyzer can be operated in all relevant analysis modes, such as ARPES, XPS, UPS, as well as AES, ISS and LEISS. Its design and the modular supplementary hardware makes this analyzer the most versatile PES analyzer in the market. Due to ist size and lens system, it shows highest values in energy resolution.

With a 2D CMOS detector is shows outstanding performance in countrate, linearity and a true pule counting mechanism. It combines a state of the art lens system with a proven hemipshere design for highest transmission and resolution. The analyzer can be operated in transmission (XPS/UPS), angular resolved (ARPES) and magnification mode (slab imaging).

The energy analyzer sectionis equipped with 8 customizable entrance and 3 exit slits. For highest energy resolution the entrance slit can be chosen down to 50 µm, providing achievable energy resolution better than 1 meV. The analyzer comes with a highly stable power supply, the HSA 3500 plus, for best performance in a wide kinetic energy range.

A classical CCD camera detection system is available on request.

KEY FEATURES

  • High Performance Analyzer for XPS, ARPES, AES, ISS and LEIS
  • Energy resolution better than 1 meV
  • Angular Resolution better than 0.1°
  • 2D MCP Chevron Detector with CMOS (or CCD)
  • Double µ-Metal Shielding

MADE FOR THESE METHODS

1
ARPES
Angle-Resolved Photoelectron Spectroscopy detects the energy and angle distribution of photoelectrons to determine the electronic structure of solids.

SPECIFICATIONS

PHOIBOS 225 2D-CMOS/-CCD
Performance
Energy Resolution

< 1 meV

Angular Resolution

< 0.1°

k-Resolution

N/A

Acceptance Angle

±15°, ±7°, ±4° and ±3°

Lateral Resolution

< 35 µm

Smallest Acceptance Spot

100 µm

XPS Count Rates UHV

> 0.5 Mcps @ 0.85 eV and > 1.5 Mcps @ 1.00 eV FWHM

Detector Channels

1285x730 (with Channel Binning)

Operation
Kinetic Energy Range

0-3500 eV

Pass Energies

0-550 eV Continously Adjustable

Energy Dispersion

Hemisphere

Lens Modes

Transmission Mode, Angular Resolved Mode, Magnification (Lateral Resolved) Mode

Measurement Modes

Snapshot Mode, Sweeping Mode, Fixed Energy Mode

Detector

2D CMOS Detector

Slits/Apertures

8 entrance and 3 exit slits and iris aperture

Energy Window

9% of Pass Energy

Electronics

HSA 3500 +

Working Pressure

10-11 to 10-7 mbar

Mounting
Working Distance

53.3 mm

Mounting Flange

DN150CF (8" OD)

Magnetic Shielding

Double µ-Metal Shielding

Electric Isolation

> 15 keV

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APPLICATION NOTES

Resolving Power of the PHOIBOS Energy Analyzer Series
Resolving Power of the PHOIBOS Energy Analyzer Series
The line width of Xe and other rare gas levels using the SPECS gas cell UGC 10 and the SPECS UV-light source UVS 10/35 has been measured. The special geometry of the cell includes space charge compensation electrodes to demonstrate the ultimate energy resolution of the PHOIBOS analyzers.
download PDF
Quantum Size Effects in uncoupled Al layers on graphitized SiC
Quantum Size Effects in uncoupled Al layers on graphitized SiC
track Quantum well states, measure 2D band structure, parallel component of wave vector, 2D spectrometer use
download PDF
Measurements of the Surface State of Au (111)
Measurements of the Surface State of Au (111)
The band structure of the (111) surface of Au was measured by high-resolution angle-resolved photoelectron spectroscopy. The experiments were performed using a SPECS UV 10/35 source, which has an energy resolution of about 2 meV and a spot size of about 1.5 mm diameter. The photon energy for all measurements was 21.23 eV (He I).
download PDF
Measurements of the Surface State of Cu (111)
Measurements of the Surface State of Cu (111)
The band structure of the (111) surface of Cu was measured by high-resolution angle-resolved photoelectron spectroscopy. The experiments were performed using a VG UV source, which has an energy resolution of about 2 meV and a spot size of about 1.5 mm diameter. The photon energy for all measurements was 21.23 eV (He I).
download PDF
Fermi-edge of a single crystal TiTe2 sample at low temperature
Fermi-edge of a single crystal TiTe2 sample at low temperature
The Fermi-edge of a single crystal TiTe2sample was measured at low temperature. The diode closest to the sample read 12 K. A sample temperature of 17 K was estimated. The data was taken with a PHOIBOS 150 CCD analyzer at 3 eV pass energy and with 0.2 mm slit width.
download PDF
Band Structure of Crystalline Graphite Layers on SiC (0001)
Band Structure of Crystalline Graphite Layers on SiC (0001)
The band structure of crystalline graphite layers on the (0001) surface of SiC was measured by high-resolution angle-resolved photoelectron spectroscopy. The experiments were performed using a SPECS UV source 10-35, which has an energy resolution of about 2 meV and a spot size of about 0.6 mm in diameter. The photon energy for all measurements were 40.81 eV (He II).
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High Angular Resolution Data from the Band Structure of Thin Layers of Indium on Si(111)
High Angular Resolution Data from the Band Structure of Thin Layers of Indium on Si(111)
The band structure of thin layers of indium on Si(111) was measured with ARPES. Due to electron confinement in the direction perpendicular to the surface, quantum well states (QWS) are formed. The experiments were performed at the BESSY II 10 m NIM beamline at the U125/2 undulator, which has an energy resolution of less than 1 meV, and a small spot size.
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Cross Section through the Brillouin Zone of Pb 2D Quantum Well State Bands
Cross Section through the Brillouin Zone of Pb 2D Quantum Well State Bands
Examining unexpected properties of Pb, a free electron metal
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Overlayer Quantum Well States
Overlayer Quantum Well States
Angle-resolved one-photon photoemission was used to investigate angular resolved photoemission from Ag overlayers on Cu(111).
download PDF
Two-Photon-Photoemission
Two-Photon-Photoemission
This Note shows the one- and two-photon photoemission signal of the Cu(111) surface state at 300 K for the different angular resolved lens modes of the PHOIBOS analyzer at different pass energies Ep. The surface has been analyzed using a PHOIBOS 150 analyzer with the 2D CCD Detector.
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Show all

PUBLICATIONS

  1. (2013) Spin-orbit splitting of the Shockley surface state on Cu(111)

    We present angle-resolved photoemission data from Cu(111). Using a focused 6 eV continuous-wave laser for photoexcitation, we achieve a high effective momentum resolution, enabling detection of the Rashba spin splitting in the Shockley surface state on Cu(111). The magnitude of the spin splitting of Δk∼0.006 Å−1 is surprisingly large and exceeds values predicted for the analogous surface state on Ag(111), but is reproduced by first-principles calculations. We further resolve a kink in the dispersion, which we attribute to electron-phonon coupling.



    A. Tamai, W. Meevasana, P. D. C. King, C. W. Nicholson, A. de la Torre, E. Rozbicki, and F. Baumberger
    Phys. Rev. B 87, 075113
    Read more

SPARE PARTS

6
Product image
Product description
Article No.
 
Channelplates Set - 1 pair MCP 40

Spare channelplate set for all 40 mm CCD detectors

2060009045
Phosphor screen

Spare phosphor screen for all 40 mm CCD detectors. Exchange with channelplates is recommended.

2060008804
Cu-wiregasket PHOIBOS 225 DN700COF

PHOIBOS 225 analyzer main flange gasket. Please report SN before ordering

2060002198
Rotary feedthrough for IRIS

Replacement feedthrough for PHOIBOS Release R5 & R6 iris mechanism

2060001175
Spindle with Spur and Bevel Gear for Iris

Replacement spindle for PHOIBOS Release R5 & R6 iris mechanism

2055021656
Tubus 3 with Iris

Replacement iris mechanism for PHOIBOS Release R5 & R6

2079150291

DOWNLOADS

6
2D-CMOS Detector
Brochures
download PDF
PHOIBOS 225
Manuals
PHOIBOS Hemispherical Energy Analyzer Series PHOIBOS 225
Extremely high resolution spectrometer for XPS, UPS and ISS applications with HSA mean radius of 225 mm. Suitable for measurements over a wide energy range and available with several detection options.
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HSA 3500plus
Manuals
HSA 3500plus Power Supply
HSA 3500 family of power supplies including HSA 3500plus, HSA 7000plus and HSA 15000plus. To be used in conjunction with PHOIBOS Hemispherical Energy Analyzers and THEMIS Time-Of-Flight Spectrometers.
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2D-CMOS Detector
Manuals
2D CMOS Detector
2D Detector with high energy resolution, broad dynamic range and very low noise level for angle-resolved or spatially resolved studies. To be used with the hemispherical analyzers PHOIBOS 100/150/225, ASTRAIOS 150 and the KREIOS 150 spectrometer. Features a high speed CMOS camera and parallel true pulse counting.
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2D-CCD Detector
Manuals
2D CCD Detector
2D detector for angle-resolved or spatially resolved studies with PHOIBOS hemispherical analyzers. Features a MCP Chevron/ phosphorous screen assembly and CCD camera sensor.
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Adjustable Camera Support
Manuals
Adjustable Camera Support
Camera support - adjustment of torsion angle, height and x-y-position.
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