Magnetic resonance studies of the metalorganic antiferromagnet Mn[C10H6(OH)(COO)]22H2O are carried out over a wide range of frequencies (25–12GHz) and temperatures (1.8–300K). The data on the temperature dependence of the magnetic susceptibility attest to a low-dimensional magnetic structure of this crystal. The results of resonance studies at a temperature of 1.8K are used to construct the frequency–field diagram of the antiferromagnetic resonance spectrum of this compound; it is described by the model of a biaxial rhombic antiferromagnet with the following parameters: ν01=14.1±0.1GHz, ν02=44.2±0.1GHz, Ha1=0.25kOe, Ha2=2.53kOe, Hsf=5.1±0.1kOe, 2He=98±1kOe. Two-magnon and nonresonance three-magnon absorption is observed, and the weakest interchain exchange interaction is estimated as J=6.2×103K.

1.
M. P.
Gupta
and
B. P.
Dutta
,
Cryst. Struct. Commun.
4
,
37
(
1975
).
2.
M. U.
Schmidt
,
G.
Wagner
, and
M.
Bolte
,
Acta Cryst. E
58
,
918
(
2002
).
3.
M. U.
Schmidt
,
E.
Alig
,
L.
Fink
,
M.
Bolte
,
R.
Panish
,
V.
Pashchenko
,
B.
Wolf
, and
M.
Lang
,
Acta Crystallogr., Sect. C: Cryst. Struct. Commun.
61
,
1
(
2005
).
4.
I.
Spremo
,
F.
Schütz
,
P.
Kopietz
,
V.
Pashchenko
,
B.
Wolf
,
M.
Lang
,
J. W.
Bats
,
Chunhua
Hu
, and
M. U.
Schmidt
, cond-mat/0505425 (to be published).
5.
M. E.
Lines
,
J. Phys. Chem. Solids
31
,
101
(
1970
).
6.
M. E.
Fisher
,
Am. J. Phys.
32
,
343
(
1964
);
T.
Smith
and
S. A.
Friedberg
,
Phys. Rev.
176
,
660
(
1968
).
7.
I.
Nagamija
,
K.
Yosida
, and
K.
Kubo
,
Adv. Phys.
4
, No.
13
,
43
(
1955
).
8.
N. K.
Dan’shin
,
A. S.
Zel’tser
, and
V. A.
Popov
,
Fiz. Nizk. Temp.
10
,
1175
(
1984
)
N. K.
Dan’shin
,
A. S.
Zel’tser
, and
V. A.
Popov
,[
Sov. J. Low Temp. Phys.
10
,
613
(
1984
)].
9.
E. A.
Turov
,
Physical Properties of Magnetically Ordered Crystals
,
Academic Press
, New York (
1965
), Izd-vo AN SSSR, Moscow (
1963
).
10.
P. M.
Richards
and
M. B.
Salomon
,
Phys. Rev. B
9
,
32
(
1974
).
11.
A.
Lagendijk
and
D.
Shoemaker
,
Phys. Rev. B
16
,
47
(
1977
).
12.
I.
Okamoto
,
T.
Karasudani
,
K.
Nagano
, and
H.
Mori
,
J. Magn. Magn. Mater.
31–34
,
643
(
1983
).
13.
A. G.
Anders
,
S. V.
Volotskiĭ
, and
Yu. N.
Savvin
,
Fiz. Tverd. Tela (Leningrad)
29
,
1598
(
1987
)
A. G.
Anders
,
S. V.
Volotski
, and
Y. N.
Savvin
,[
Sov. Phys. Solid State
29
,
920
(
1987
).]
14.
Yu. V.
Pereverzev
and
A. A.
Stepanov
,
Fiz. Nizk. Temp.
3
,
502
(
1977
)
Yu. V.
Pereverzev
and
A. A.
Stepanov
,[
Sov. J. Low Temp. Phys.
3
,
243
(
1977
)].
15.
A. G.
Anders
,
A. I.
Zvyagin
, and
A. I.
Petutin
,
Fiz. Nizk. Temp.
6
,
491
(
1980
)
A. G.
Anders
,
A. I.
Zvyagin
, and
A. I.
Petutin
,[
Sov. J. Low Temp. Phys.
,
6
,
234
(
1980
)].
16.
A. G.
Anders
,
S. V.
Volotskii
, and
A. I.
Zvyagin
,
Fiz. Nizk. Temp.
9
,
1239
(
1983
)
A. G.
Anders
,
S. V.
Volotskii
, and
A. I.
Zvyagin
,[
Sov. J. Low Temp. Phys.
9
,
637
(
1983
)].
17.
A. A.
Stepanov
and
Yu. V.
Pereverzev
, FTINT AN UkrSSR Preprint P-124 [in Russian], B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkov (
1978
).
18.
Yu. V.
Pereverzev
and
A. A.
Stepanov
,
Fiz. Nizk. Temp.
3
,
351
(
1977
)
Y. V.
Pereverzev
and
A. A.
Stepanov
,[
Sov. J. Low Temp. Phys.
3
,
168
(
1977
)].
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