Journal article
Correlating magnetotransport and diamagnetism of sp(2)-bonded carbon networks through the metal-insulator transition
Physical review. B, Condensed matter and materials physics, v 84(15)
14 Oct 2011
Abstract
Titanium-carbide-derived carbons (TiC-CDCs) are porous sp(2)-bonded networks synthesized by exposing TiC to chlorine gas at an elevated temperature. The latter "chlorination temperature" adjusts the size of the pores and the sp(2)-bonded carbon domains within this material. We perform magnetoresistance, electronic transport, and superconducting quantum interference device magnetization measurements on TiC-CDC samples prepared at different chlorination temperatures. Transport reveals a metal-insulator transition where high (low) chlorination temperature samples are on the metallic (insulating) side of the transition. Magnetoresistance measurements are consistent with transport in the weak and strong localization regimes for metallic and insulating samples, respectively. Changes in diamagnetism, electronic transport, and magnetoresistance data across the metal-insulator transition are coordinated, suggesting that all three properties are controlled by a single parameter, likely the expansion of sp(2)-bonded domains.
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Details
- Title
- Correlating magnetotransport and diamagnetism of sp(2)-bonded carbon networks through the metal-insulator transition
- Creators
- P. M. Vora - Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USAP. Gopu - Univ Penn, Dept Elect & Syst Engn, Philadelphia, PA 19104 USAM. Rosario-Canales - Univ Penn, Dept Elect & Syst Engn, Philadelphia, PA 19104 USAC. R. Perez - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USAY. Gogotsi - Drexel UniversityJ. J. Santiago-Aviles - Univ Penn, Dept Elect & Syst Engn, Philadelphia, PA 19104 USAJ. M. Kikkawa - Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
- Publication Details
- Physical review. B, Condensed matter and materials physics, v 84(15)
- Publisher
- Amer Physical Soc
- Number of pages
- 8
- Grant note
- GK12 fellowship program DMR-0907266; DGE-0654313 / NSF; National Science Foundation (NSF) NSEC DMR08-32802 / Nano/Bio Interface Center through the National Science Foundation DMR-05-20020 / MRSEC; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000295872800005
- Scopus ID
- 2-s2.0-80455145410
- Other Identifier
- 991019167659804721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter