High temperature chamber with 4 probe tips (T2)
Temperature: 80 K ~800 K (<300 K with LN2 flow and >300 K with heater, 10 K) Pressure: >1x10-2 torr (a rotary pump) Windows at top and bottom of the sample Model: HFS600E-PB4 Manufactured by Linkam and imported by Visionus (2013.07.16)
Low temperature closed cycle refrigerator with 8 probe wires (T3)
Borrowed from Prof. E. Choi Temperature: 8 K ~ 350 K (8 K(sample) and 7 K(cold finger) within 2 hours) Pressure: <1x10-3 torr (a rotary pump) PC control with Labview (Yong Hyun Kim, 2013-08-30) Model: CCS model 22 (Janis) + Compressor model 8200 (ASM) + Lakeshore 330 Manufactured by Janis and imported by Woosin Cryovac Contact Sungwoo Instruments for refill He gas in the refrigerator Contact ASK corp for other symptoms (before 2012)
MBE (M1): Chalcogenide (Se, Te)
-ebeam evaporator cells (~3000'C, Focus GmbH) -thermal effusion cells (~1000'C) -RHEED (Pascal) (2014.01.16~)
MBE (M2): Chalcogenide (Se, S)
-ebeam evaporator cells (~3000'C, Focus GmbH) -thermal effusion cells (~1000'C) -RHEED (Pascal) (2020.03.01~)
Evaporator (E1): Chalcogenide (Te)
Sample Pressure: >2x10-8 torr E-beam (7 cc, 4 pockets) PC controlled growth Manufactured by Korea vacuum tech (2013.10.24) (modified at 2016.02.05)
ARPES(angle-resolved photoemission spectroscopy), BL10.0.2, ALS, LBNL, Berkeley, USA
user facility (since 2018.07.01)
ARPES(angle-resolved photoemission spectroscopy), BL7.0.2, ALS, LBNL, Berkeley, USA
user facility (since 2015.01.01) Maestro beamline (BL 7.0.2), Advanced Light Source, Berkeley National Lab
XMCD, APS, Argonne National Lab, Chicago, USA
user facility (since 2018.03.20) 4-ID-C beamline, Advance Photon Source
XMCD, PLS, Pohang, Korea
user facility (since 2016.10.18) 2A1 beamline, Pohang Light Source
ARPES, PLS, Pohang, Korea
user facility (since 2013.01.01) 4A1 beamline, Pohang Light Source, POSTECH - Insertion device: Undulator - Beam energy : 25 ~ 1000 eV - Energy resolution : E/ΔE = 10000 ~ 30000 - Photon count : > 10^10 photons/sec·(0.1% bandwidth) - Beam size : 10 μm × 10 μm - Electron analyser: Scienta R4000 - LEED, Sputter gun - Open cycle cryostat - Main chamber-Preparation ch.-Loadlock ch.