Photo-induced effect in the layered perovskite manganite La1.2Sr1.8Mn1.8Co0.2O7

We have measured the magnetization as a function of temperature and magnetic field in layered perovskite manganites of La2-2xSr1+2xMn2O7 single crystals (x=0.313, 0.315, 0.320, 0.350) in order to know their magnetic structures. All the present manganites exhibit magnetic transitions from ferromagnetic to paramagnetic at 76K, 107K, 120K and 125K for x=0.313, 0.315, 0.320 and 0.350, respectively. For x=0.350 and 0.320, the magnetic structure is a planar ferromagnetism whose easy axis is in the ab-plane at all temperatures below the Curie temperature. On the other hand, for x=0.315 and 0.313, the magnetic structure is an uniaxial ferromagnetism whose easy axis is along the c-axis below 85K and 66K, respectively, and a planar ferromagnetism above the temperature. From the results described above, we made the detailed magnetic phase diagram of layered perovskite manganite La2-2xSr1+2xMn2O7 (0.313≤x≤0.350).

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Anomalous Lattice Distortion in Pr-Substituted Double-Layered Perovskite Manganite La1.2Sr1.8Mn2O7Single Crystals

Journal of the Physical Society of Japan ◽

10.1143/jpsj.69.1274 ◽

2000 ◽

Vol 69 (5) ◽

pp. 1274-1277 ◽

Cited By ~ 20

Author(s):

Hiromitsu Ogasawara ◽

Michiaki Matsukawa ◽

Sigeru Hatakeyama ◽

Masahito Yoshizawa ◽

M. Apostu ◽

...

Keyword(s):

Lattice Distortion ◽

Layered Perovskite ◽

Perovskite Manganite

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Room temperature magnetocaloric effect in Pr1.75Sr1.25Mn2O7 double-layered perovskite manganite system

The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics ◽

10.1080/14786435.2017.1279363 ◽

2017 ◽

Vol 97 (9) ◽

pp. 671-682 ◽

Cited By ~ 4

Author(s):

Ali Osman Ayaş ◽

Mustafa Akyol ◽

Selda Kılıç Çetin ◽

Melike Kaya ◽

İlker Dinçer ◽

...

Keyword(s):

Magnetocaloric Effect ◽

Room Temperature ◽

Layered Perovskite ◽

Perovskite Manganite

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eg-level splitting in a layered perovskite manganite as revealed by charge modulation spectroscopy

Physical Review B ◽

10.1103/physrevb.86.125127 ◽

2012 ◽

Vol 86 (12) ◽

Cited By ~ 1

Author(s):

Masao Nakamura ◽

Masashi Kawasaki ◽

Yoshinori Tokura

Keyword(s):

Layered Perovskite ◽

Perovskite Manganite ◽

Modulation Spectroscopy ◽

Level Splitting ◽

Charge Modulation

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Neutron Diffraction Study on Magnetic Structure in Layered Manganite La2-2xSr1+2xMn2O7 (x=0.307)

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.172-174.1301 ◽

2011 ◽

Vol 172-174 ◽

pp. 1301-1306 ◽

Cited By ~ 2

Author(s):

Hirosuke Sonomura ◽

Tomoyuki Terai ◽

Tomoyuki Kakeshita ◽

Toyotaka Osakabe ◽

Kazuhisa Kakurai ◽

...

Keyword(s):

Neutron Diffraction ◽

Diffraction Study ◽

Magnetic Structure ◽

Magnetic Moment ◽

Ground State ◽

Neutron Diffraction Study ◽

Layered Perovskite ◽

Perovskite Manganite ◽

Structure Changes ◽

Ferromagnetic Structure

Magnetic structure in a layered perovskite manganite, La2-2xSr1+2xMn2O7 (x = 0.307) has been investigated by neutron diffraction measurements. We found that the ground state (at 4 K) has a ferromagnetic structure with magnetic moment of Mn ions being aligned in a direction inclined by 10 degree from the c-axis. The magnetic structure changes to a canted antiferromagnetic one (CAFM-I) at about 20 K and then to another canted antiferromagnetic one (CAFM-II) at about 80 K. Here the magnetic moment lies in the ab-plane in CAFM-II but not in CAFM-I. The magnetic structure then changes to an antiferromagnetic one with magnetic moment lies in the ab-plane at about 90 K, and then to a paramagnetic one at about 100 K.

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