Specific Features of Magnetic Properties of Ferrihydrite Nanoparticles of Bacterial Origin: A Shift of the Hysteresis Loop

被引：10

作者：

Balaev, D. A. ^{[1
,2
]}

Krasikov, A. A. ^{[2
]}

Dubrovskiy, A. A. ^{[1
,3
]}

Semenov, S. V. ^{[1
,2
]}

Popkov, S. I. ^{[1
,2
]}

Stolyar, S. V. ^{[1
,2
]}

Iskhakov, R. S. ^{[1
]}

Ladygina, V. P. ^{[4
]}

Yaroslavtsev, R. N. ^{[2
]}

机构：

[1] Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Akad Gorodok 50-38, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, Svobodny Pr 79, Krasnoyarsk 660041, Russia

[3] Int Lab High Magnet Fields & Low Temp, Ul Gajowicka 95, PL-53421 Wroclaw, Poland

[4] Russian Acad Sci, Presidium Krasnoyarsk Sci Ctr, Int Sci Ctr Organism Extreme States Res, Siberian Branch, Akad Gorodok 50, Krasnoyarsk 660036, Russia

来源：

PHYSICS OF THE SOLID STATE | 2016年 / 58卷 / 02期

关键词：

EXCHANGE BIAS; ANOMALIES;

D O I：

10.1134/S1063783416020050

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The results of the experimental investigation into the magnetic hysteresis of systems of superparamagnetic ferrihydrite nanoparticles of bacterial origin have been presented. The hysteresis properties of these objects are determined by the presence of an uncompensated magnetic moment in antiferromagnetic nanoparticles. It has been revealed that, under the conditions of cooling in an external magnetic field, there is a shift of the hysteresis loop with respect to the origin of the coordinates. These features are associated with the exchange coupling of the uncompensated magnetic moment and the antiferromagnetic "core" of the particles, as well as with processes similar to those responsible for the behavior of minor hysteresis loops due to strong local anisotropy fields of the ferrihydrite nanoparticles.

引用

页码：287 / 292

页数：6

共 23 条

[1]

Balaev A. D., 1985, Prib. Tekh. Eksp., P167

[2] The effect of low-temperature heat treatment on the magnetic properties of biogenic ferrihydrite nanoparticles [J].

Balaev, D. A. ;

Krasikov, A. A. ;

Dubrovskii, A. A. ;

Bayukov, O. A. ;

Stolyar, S. V. ;

Iskhakov, R. S. ;

Ladygina, V. P. ;

Yaroslavtsev, R. N. .

TECHNICAL PHYSICS LETTERS, 2015, 41 (07) :705-709

[3] Magnetic properties and the mechanism of formation of the uncompensated magnetic moment of antiferromagnetic ferrihydrite nanoparticles of a bacterial origin [J].

Balaev, D. A. ;

Krasikov, A. A. ;

Dubrovskii, A. A. ;

Semenov, S. V. ;

Bayukov, O. A. ;

Stolyar, S. V. ;

Iskhakov, R. S. ;

Ladygina, V. P. ;

Ishchenko, L. A. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2014, 119 (03) :479-487

[4] Mechanism of the formation of an uncompensated magnetic moment in bacterial ferrihydrite nanoparticles [J].

Balaev, D. A. ;

Dubrovskii, A. A. ;

Krasikov, A. A. ;

Stolyar, S. V. ;

Iskhakov, R. S. ;

Ladygina, V. P. ;

Khilazheva, E. D. .

JETP LETTERS, 2013, 98 (03) :139-142

[5]

Balasoiu M, 2010, ROM J PHYS, V55, P782

[6] Effects of magnetic interactions in antiferromagnetic ferrihydrite particles [J].

Berquo, Thelma S. ;

Erbs, Jasmine J. ;

Lindquist, Anna ;

Penn, R. Lee ;

Banerjee, Subir K. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (17)

[7] Exchange bias effect in alloys and compounds [J].

Giri, S. ;

Patra, M. ;

Majumdar, S. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (07)

[8] Excess spin and the dynamics of antiferromagnetic ferritin [J].

Harris, JGE ;

Grimaldi, JE ;

Awschalom, DD ;

Chiolero, A ;

Loss, D .

PHYSICAL REVIEW B, 1999, 60 (05) :3453-3456

[9] Atomic-scale magnetic modeling of oxide nanoparticles [J].

Kodama, RH ;

Berkowitz, AE .

PHYSICAL REVIEW B, 1999, 59 (09) :6321-6336

[10] Magnetic anomalies in NiO nanoparticles [J].

Makhlouf, SA ;

Parker, FT ;

Spada, FE ;

Berkowitz, AE .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :5561-5563

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