Interfaces: Hetero- and Collegial A Tribute to Herb Kroemer Evelyn L. Hu Harvard School of...
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Transcript of Interfaces: Hetero- and Collegial A Tribute to Herb Kroemer Evelyn L. Hu Harvard School of...
![Page 1: Interfaces: Hetero- and Collegial A Tribute to Herb Kroemer Evelyn L. Hu Harvard School of Engineering & Applied Sciences.](https://reader036.fdocuments.us/reader036/viewer/2022062806/5697bfb81a28abf838c9f401/html5/thumbnails/1.jpg)
Interfaces: Hetero- and CollegialA Tribute to Herb Kroemer
Evelyn L. HuHarvard School of Engineering & Applied Sciences
![Page 2: Interfaces: Hetero- and Collegial A Tribute to Herb Kroemer Evelyn L. Hu Harvard School of Engineering & Applied Sciences.](https://reader036.fdocuments.us/reader036/viewer/2022062806/5697bfb81a28abf838c9f401/html5/thumbnails/2.jpg)
Circa 1980’s . . . ‘come join UCSB’
Jim Merz
‘ We have Herb Kroemer!’
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Hetero-interfaces: powerful concept, unifying theme
INTERFACES (at ‘home’)• Hetero-interfaces
− scientifically rich− broad applications
• Collegial interfaces– collaborative environment– broadened impact
Herb:• generated the fundamental ideas• delineated the band structure• brought in MBE to give form to idea
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Opportunities at Interfaces
Bandgaps and offsets
6.1 angstrom materials
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‘Quantized Conductance’
Quantized Conductance in InAs wires:The exceptional mobility of electrons, and the smooth interfaces ofInAs ‘wires’
with Steve Koester,Colombo Bolognesi,Mason Thomas(~ 1992)
at the interfaces of the ‘6.1’ materials
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Transport between superconductors and semiconductors
Exceptional Conductance at low T, zero voltage:Andreev Reflections
with Chanh Nguyen,Mason Thomas(~ 1992)
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A healthy skepticism, critical judgment, with an openess to new ideas
The vision to embrace‘blue sky’ and follow it toapplications.
Sharing ideas to promote new collaborations
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Interfaces Produce Opportunities
Center for Quantized Electronic Structures
1989 - 2000
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Interfaces that generate ideas, guidance, collaborations
Where is the Fermi level?
Type I? Type II?
The interface is key !
Innovator, standard bearer, teacher, mentor, collaborator…Thank you, Herb!