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Local magnetometry at high fields and low temperatures using InAs Hall sensors

Pugel, E. and Shung, E. and Rosenbaum, T. F. and Watkins, S. P. (1997) Local magnetometry at high fields and low temperatures using InAs Hall sensors. Applied Physics Letters, 71 (15). pp. 2205-2207. ISSN 0003-6951. https://resolver.caltech.edu/CaltechAUTHORS:20140707-163033104

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Abstract

We characterize the temperature (0.3⩽T⩽300 K), magnetic field(0⩽H⩽80 kOe), and thickness (0.1, 0.5, and 2.5 μm) dependence of the Hall response of high purity InAs epilayers grown using metalorganic chemical vapor deposition. The high sensitivity, linearity, and temperature independence of the response make them attractive for local Hall probe magnetometry, and uniquely qualified for high field applications below liquid helium temperatures. As a stringent test of performance, we use a six element micron-sized array to monitor the internal field gradient during vortex avalanches at milliKelvin temperatures in a single crystal of YBa_2Cu_3O_(7−δ).


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.120443DOIArticle
http://scitation.aip.org/content/aip/journal/apl/71/15/10.1063/1.120443PublisherArticle
Additional Information:© 1997 American Institute of Physics. (Received 13 June 1997; accepted for publication 6 August 1997) The authors are grateful to H. Jaeger for illuminating discussions. The work at the University of Chicago was supported by the National Science Foundation (Contract No. DMR91-20000) through the Science and Technology Center for Superconductivity. EP acknowledges support from Argonne National Laboratory Department of Educational Programs. SPW acknowledges the support of the Natural Sciences and Engineering Research Council of Canada.
Funders:
Funding AgencyGrant Number
NSFDMR91-20000
Argonne National LaboratoryUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Issue or Number:15
Record Number:CaltechAUTHORS:20140707-163033104
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140707-163033104
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46984
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:08 Jul 2014 21:21
Last Modified:03 Oct 2019 06:48

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