Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session V23: Low Temperature Instrumentation
2:30 PM–4:18 PM,
Thursday, March 7, 2019
BCEC
Room: 158
Sponsoring
Unit:
GIMS
Abstract: V23.00004 : Scanning probe microscopy at ultra-high magnetic fields*
3:06 PM–3:18 PM
Presenter:
Benjamin Bryant
(High Field Magnet Laboratory (HFML-EMFL), Radboud University)
Authors:
Lisa Rossi
(High Field Magnet Laboratory (HFML-EMFL), Radboud University)
Jan W. Gerritsen
(Institute for Molecules and Materials, Radboud University)
Lijnis Nelemans
(High Field Magnet Laboratory (HFML-EMFL), Radboud University)
Alexander A. Khajetoorians
(High Field Magnet Laboratory (HFML-EMFL), Radboud University)
Benjamin Bryant
(High Field Magnet Laboratory (HFML-EMFL), Radboud University)
We present a novel cryogenic scanning tunnelling microscope (STM) designed to operate inside a 38 T water-cooled Bitter magnet. The performance of the STM is demonstrated through Landau level tunnelling spectroscopy of graphite, at 4.2 K in magnetic fields up to 34 T. Additionally we show the design of a highly compact atomic force microscope (AFM) for operation at cryogenic temperatures in an extremely high magnetic field. We show preliminary imaging data on the frustrated spinel CdCr2O4 at up to 30 T.
*HFML-RU/FOM
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