We report here the observation of chemomagnetism, generation of a magnetic field by rapid high-temperature solid reactions producing various oxides. The low-level transient magnetic fields were measured with a high-Tc superconducting quantum interference device magnetometer during the synthesis of both nonferromagnetic and ferromagnetic (ferrite) compounds. The magnetic field was most likely produced by chemoionization processes generated by the moving high-temperature reaction zone. The permanent magnetic field formed by the synthesis of ferromagnetic materials depended on the difference between the combustion temperature and the Curie temperature of the product.

1.
A. G. Merzhanov, in Combustion and Plasma Synthesis of High-Temperature Materials, edited by Z. A. Munir and J. B. Holt (VCH, New York, 1990), pp. 1–53.
2.
Z. A.
Munir
and
U.
Anselmi-Tamburini
,
Mater. Sci. Rep.
3
,
277
(
1989
).
Google Scholar
Crossref
Search ADS
 
3.
IMAG system by Conductus, San Diego, CA.
4.
D.
Koelle
,
A. H.
Miklich
,
F.
Ludwig
,
E.
Daulster
,
D. T.
Nemeth
, and
J.
Clarke
,
Appl. Phys. Lett.
63
,
2271
(
1993
).
Google Scholar
Crossref
Search ADS
 
5.
V. A.
Kudryashov
,
A. S.
Mukasyan
, and
I. A.
Filomonov
,
J. Mater. Synth. Process.
4
,
353
(
1996
).
Google Scholar
 
6.
Y. G.
Morozov
,
M. V.
Kuznetsov
,
M. D.
Nersesyan
, and
A. G.
Merzhanov
,
Dokl. Akad. Nauk SSSR
351
,
780
(
1997
).
Google Scholar
 
7.
A. G.
Merzhanov
and
M. D.
Nersesyan
,
J. Vses. Chem. O-va im. Mendeleeva, D. M.
35
,
700
(
1990
) (in Russian).
Google Scholar
 
8.
Q.
Ming
,
M. D.
Nersesyan
,
K.
Ross
,
J. T.
Richardson
, and
D.
Luss
,
Combust. Sci. Technol.
128
,
279
(
1997
).
Google Scholar
Crossref
Search ADS
 
9.
I. I. Volnov, The Peroxides of Alkaline and Earth-Alkaline Metals (Nauka, Moscow, 1988), p. 156.
10.
Handbook of Inorganic Chemistry, edited by R. A. Lidin (Begell House, New York, 1995).
11.
J. Lawton and P. Weinberg, Electrical Aspects of Combustion (Oxford University Press, New York, 1969).
12.
P. B.
Avakyan
,
M. D.
Nersesyan
, and
A. G.
Merzhanov
,
Am. Ceram. Soc. Bull.
75
,
50
(
1996
).
Google Scholar
 
13.
Concise Encyclopedia of Magnetic and Superconducting Materials, edited by J. E. Evtts (Pergamon, New York, 1992), p. 203.
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