Abstract
By pump-probe optical reflectivity measurements, we studied the photoinduced dynamics of MnV2O4, which is a d2 Mott insulator and exhibits a simultaneous spin and orbital ordering accompanied by a structural phase transition at 57 K. We compared the present experimental results with the results of the steady-state optical measurement of the same compound and the steady-state and pump-probe optical measurements of Al-doped MnV2O4, in which the orbital ordering and structural phase transition are absent but the magnetic ordering exists. We found that the photoinduced dynamics of MnV2O4 can be separated into three components: (1) the suppression of the Mott-excitation peak, (2) the melting of the orbital ordering, and (3) the melting of the magnetic ordering. Furthermore, we found that the lattice distortion associated with the photoinduced structural phase transition from tetragonal to cubic induces a strain wave whose propagation velocity is discernibly smaller than that of a conventional shockwave.
| Original language | English |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 88 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2013 Dec 16 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Photoinduced dynamics of spinel MnV 2 O 4. / Takubo, K.; Onishi, Y.; Furuhashi, A.; Nogami, A.; Katsufuji, Takuro.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 88, No. 21, 16.12.2013.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Photoinduced dynamics of spinel MnV 2 O 4
AU - Takubo, K.
AU - Onishi, Y.
AU - Furuhashi, A.
AU - Nogami, A.
AU - Katsufuji, Takuro
PY - 2013/12/16
Y1 - 2013/12/16
N2 - By pump-probe optical reflectivity measurements, we studied the photoinduced dynamics of MnV2O4, which is a d2 Mott insulator and exhibits a simultaneous spin and orbital ordering accompanied by a structural phase transition at 57 K. We compared the present experimental results with the results of the steady-state optical measurement of the same compound and the steady-state and pump-probe optical measurements of Al-doped MnV2O4, in which the orbital ordering and structural phase transition are absent but the magnetic ordering exists. We found that the photoinduced dynamics of MnV2O4 can be separated into three components: (1) the suppression of the Mott-excitation peak, (2) the melting of the orbital ordering, and (3) the melting of the magnetic ordering. Furthermore, we found that the lattice distortion associated with the photoinduced structural phase transition from tetragonal to cubic induces a strain wave whose propagation velocity is discernibly smaller than that of a conventional shockwave.
AB - By pump-probe optical reflectivity measurements, we studied the photoinduced dynamics of MnV2O4, which is a d2 Mott insulator and exhibits a simultaneous spin and orbital ordering accompanied by a structural phase transition at 57 K. We compared the present experimental results with the results of the steady-state optical measurement of the same compound and the steady-state and pump-probe optical measurements of Al-doped MnV2O4, in which the orbital ordering and structural phase transition are absent but the magnetic ordering exists. We found that the photoinduced dynamics of MnV2O4 can be separated into three components: (1) the suppression of the Mott-excitation peak, (2) the melting of the orbital ordering, and (3) the melting of the magnetic ordering. Furthermore, we found that the lattice distortion associated with the photoinduced structural phase transition from tetragonal to cubic induces a strain wave whose propagation velocity is discernibly smaller than that of a conventional shockwave.
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U2 - 10.1103/PhysRevB.88.214416
DO - 10.1103/PhysRevB.88.214416
M3 - Article
VL - 88
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 21
ER -