Magnetostriction effects

Moral, A. del; Algarabel, P. A.; Arnaudas, J.I.; Benito, L.; Ciria, M.; Fuente, C. de la; García‐Landa, B.; Ibarra, M. R.; Marquina, C.; Morellón, L.

doi:10.1016/s0304-8853(01)01063-0

Cited by 18 publications

(8 citation statements)

References 24 publications

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“…It is well known that magnetostriction is associated with spontaneous changes in the long-range magnetic ordering of magnetic materials. 70 Therefore, the anomaly at T 1 clearly indicates that the magnetic transition at T 1 does not originate from a spin-glass transition, which corroborates the occurrence of a distinct anomaly in the heatcapacity data ͑see Fig. 9͒.…”

Section: B Low-temperature X-ray Diffraction Studiessupporting

confidence: 76%

Magnetostructural properties ofHo5(Si0.8Ge0.2)
Singh
¹
,
Paudyal
²
,
Mudryk
³

et al. 2010
Phys. Rev. B
19
1
8
0
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The magnetostructural properties of Ho 5 ͑Si 0.8 Ge 0.2 ͒ 4 have been investigated both experimentally and by using first-principles theory. The compound orders ferromagnetically at 50 K, and in the temperature range of 50-100 K it exhibits a Griffiths phaselike behavior. The dc magnetization, heat capacity, and the relaxation and frequency dependence of the ac susceptibility indicate that the long-range magnetic order and a spin-glasslike state may coexist in Ho 5 ͑Si 0.8 Ge 0.2 ͒ 4 over a certain temperature range below T C . Despite adopting the Gd 5 Si 2 Ge 2 -type monoclinic ͑M-type͒ structure at room temperature, the compound does not exhibit a magnetostructural transition at T C , unlike some other members of the R 5 ͑Si 1−x Ge x ͒ 4 series with R = Gd, Tb, and Dy. The tight-binding linear muffin-tin orbital calculations within the local spin-density approximation show that in R 5 ͑Si 1−x Ge x ͒ 4 compounds the gain in the exchange energy brought about by the M-type to Gd 5 Si 4 -type orthorhombic ͑O-I͒ transformation decreases as R is changed from Gd to other heavy lanthanides and the absence of the M to O-I phase transformation in Ho 5 ͑Si 0.8 Ge 0.2 ͒ 4 is a result of low gain in the magnetic contribution to the total energy.

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Section: B Low-temperature X-ray Diffraction Studiessupporting

confidence: 76%

Magnetostructural properties ofHo5(Si0.8Ge0.2)
Singh
¹
,
Paudyal
²
,
Mudryk
³

et al. 2010
Phys. Rev. B
19
1
8
0
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“…[3][4][5][6][7][8][9][10][11][12][13][14] Gd 5 (Si x Ge 1-x ) 4 compounds also exhibit colossal volume magnetostriction due to a structural phase transformation. 13,[15][16] The volume magnetostriction can be induced thermally (spontaneous volume magnetostriction) as well as magnetically (forced volume magnetostriction), and are observed to be comparable as demonstrated by Morellon et al 13 The single crystalline Gd 5 (Si x Ge 1-x ) 4 compounds exhibit magnetostrictive strains up to ~10000 ppm along the crystallographic a axis. These properties make them ideal candidates for replacing materials used in actuators, such as Terfenol-D and PZT, where linear strains are limited to ~2000 ppm and volume strains are close to zero.…”

Section: Introductionsupporting

confidence: 55%

Forced volume magnetostriction in composite Gd 5 Si 2 Ge 2

Nersessian

Carman

et al. 2004

SPIE Proceedings

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a nersesse@ucla.edu; phone 1 310 825-9564; fax 1 310 206-2302; b swor@seas.ucla.edu; phone 1 310 825-9564; fax 1 310 206-2302; c carman@seas.ucla.edu; phone 1 310 825-6030; fax 1 310 206-2302; d mcall10@llnl.gov; phone 1 925 422-1499; fax 1 925 422-4665; e choe1@llnl.gov; phone 1 925 422-8717; fax 1 925 423-0238; f radousky1@llnl.gov; phone 1 925 422-4478; fax 1 925 423-0238; g vitkp@ameslab.gov; phone 1 515 294-8220; fax 1 515 294-9579; h pecharsky@ameslab.gov; phone 1 515 294-2728; fax 1 515 294-9579 ABSTRACTA -1200 ppm forced volume magnetostriction has been obtained in a [0-3], resin-bonded, Gd 5 Si 2 Ge 2 particulate composite. The strain is a result of a magnetically induced phase transformation from a high volume (high temperature, low magnetic field) monoclinic phase to a low volume (low temperature, high magnetic field) orthorhombic phase. The particles used in the composite were ball-milled from a bulk sample and sieved to obtain a size distribution of 600 m. Bulk Gd 5 Si 2 Ge 2 was manufactured via arc melting and subsequently annealed at 1300 o C for 1 hour to produce a homogenous, polycrystalline sample. The transformation temperatures of the bulk sample, as measured using a Differential Scanning Calorimeter (DSC), were M s = -9.3 o C, M f = -14.6 o C, A s = -4.4 o C, and A f = -1.2 o C. The composite and the bulk samples were magnetically characterized using a SQUID magnetometer, and found to undergo a paramagnetic to ferromagnetic transition during the phase transformation, consistent with published results. The bulk sample was also found to possess a maximum linear magnetostriction of -2500 ppm.

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“…The observed behavior could be associated to “spontaneous magnetostriction” resulting from a magnetically ordered state, in contrast to the “common magnetostriction” effect that results from the application of a magnetic field 24. In Sr 2 MnTeO 6, this effect can be viewed as the result of the nature of the magnetic order (see Figure 9), where moments perpendicular to the [001] direction attract one another, leading to a reduction of the c parameter with the increase in b parameter being the result of the repulsion between ferromagnetically aligned moments in the ab plane.…”

Section: Resultsmentioning

confidence: 99%

Magnetic Properties of the Ordered Double Perovskite Sr₂MnTeO₆

et al. 2006

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The ordered double perovskite Sr 2 MnTeO 6 was prepared by the freeze-drying method. The nuclear and magnetic structures were determined by both X-ray and neutron (D2B and D1B) powder diffraction. A distorted, double perovskite structure type described by the monoclinic P12 1 /n1 space group is observed at room temperature and down to 4 K. The room temperature EPR spectrum shows an isotropic signal centered at a g value of 1.998 indicating that manganese ions are in the +2 oxidation state. At low temperature the EPR signal broadens as the exchange and dipolar interactions between Mn 2+ cations increase. Below 25 K no signal is observed, indicating that the sample is magnetically ordered. The dc magnetic susceptibility shows the existence of antiferromagnetic interactions with an ordering temperature

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Magnetostriction effects

Cited by 18 publications

References 24 publications

Magnetostructural properties ofHo5(Si0.8Ge0.2)
Singh
¹
,
Paudyal
²
,
Mudryk
³

et al. 2010
Phys. Rev. B
19
1
8
0
View full text Add to dashboard Cite

Magnetostructural properties ofHo5(Si0.8Ge0.2)
Singh
¹
,
Paudyal
²
,
Mudryk
³

et al. 2010
Phys. Rev. B
19
1
8
0
View full text Add to dashboard Cite

Forced volume magnetostriction in composite Gd 5 Si 2 Ge 2

Magnetic Properties of the Ordered Double Perovskite Sr₂MnTeO₆

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Magnetostriction effects

Cited by 18 publications

References 24 publications

Magnetostructural properties ofHo5(Si0.8Ge0.2)Singh1, Paudyal2, Mudryk3 et al. 2010Phys. Rev. B19180View full textAdd to dashboardCite

Magnetostructural properties ofHo5(Si0.8Ge0.2)Singh1, Paudyal2, Mudryk3 et al. 2010Phys. Rev. B19180View full textAdd to dashboardCite

Forced volume magnetostriction in composite Gd 5 Si 2 Ge 2

Magnetic Properties of the Ordered Double Perovskite Sr2MnTeO6

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Product

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Magnetostructural properties ofHo5(Si0.8Ge0.2)
Singh
¹
,
Paudyal
²
,
Mudryk
³

et al. 2010
Phys. Rev. B
19
1
8
0
View full text Add to dashboard Cite

Magnetostructural properties ofHo5(Si0.8Ge0.2)
Singh
¹
,
Paudyal
²
,
Mudryk
³

et al. 2010
Phys. Rev. B
19
1
8
0
View full text Add to dashboard Cite

Magnetic Properties of the Ordered Double Perovskite Sr₂MnTeO₆