Low-energy and SQUID evidence of magnetism in highly oriented pyrolytic graphite
Source abstract
Abstract
Low-energy muon spin rotation and SQUID magnetization measurements were performed on proton-irradiated and non-irradiated highly oriented pyrolytic graphite samples. The samples were found to be ferromagnetic above and below room temperature and to include a substantial temperature-dependent surface contribution. Assuming uniformity, the thickness of the magnetic surface layer was estimated to be 13(2) nm. The discovered surface magnetism is intrinsic and not due to irradiation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Graphite, nuclear technology, radiation studies · Muon and positron interactions and applications · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (9)
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1. Esquinazi · Phys. Rev. B · 2002 · 66 · 02442910.1103/PhysRevB.66.024429 ↗
2. Barzola-Quiquia · Nucl. Instrum. Meth. Phys. Res. B · 2007 · 256 · 41210.1016/j.nimb.2006.12.036 ↗
3. Ohldag · Phys. Rev. Lett. · 2007 · 98 · 18720410.1103/PhysRevLett.98.187204 ↗
4. Yazyev · Phys. Rev. Lett. · 2008 · 101 · 03720310.1103/PhysRevLett.101.037203 ↗
5. Morenzoni · J. Phys. Condens. Matter · 2004 · 16 · S458310.1088/0953-8984/16/40/010 ↗
6. Morenzoni · Nucl. Instrum. Meth. B · 2002 · 192 · 25410.1016/S0168-583X(01)01166-1 ↗
7. Prokscha · Phys. Rev. Lett. · 2007 · 98 · 22740110.1103/PhysRevLett.98.227401 ↗
8. P. Esquinazi, J. Barzola-Quiquia, D. Spemann, M. Rothermel, H. Ohldag, N. García, A. Setzer, T. Butz, private communication.
9. Reichart · Nucl. Instrum. Meth. B · 2006 · 249 · 28610.1016/j.nimb.2006.04.014 ↗