This study demonstrates capabilities of a molecular beam epitaxy method for the deposition of ferromagnetic Pd–Fe alloy thin films with variable compositions across film thickness. It is proposed as a technological route to synthesize graded magnetic materials possessing unusual physical properties. A particular approach to realize a concentration profile through temperature control of an effusion cell during deposition is described in detail. Using this technique, graded ferromagnetic films were synthesized and characterized to reveal the possibility of controlling the spectrum of standing spin waves in them. Limitations of creating Pd–Fe films magnetically profiled across the thickness are discussed, associated with the thermal inertia of effusion cells and possible phase separation.
REFERENCES
1.
A. B.
Shvartsburg
, V.
Kuzmiak
, and G.
Petite
, Phys. Rep.
452
, 33
(2007
). 2.
A. B.
Shvartsburg
and A. A.
Maradudin
, Waves in Gradient Metamaterials
(World Scientific Publishing Co.
, Singapore
, 2013
).3.
H. A.
Macleod
, Thin-film Optical Filters (Taylor & Francis, Boca Raton
, 2018
).4.
S.
Fahr
, C.
Ulbrich
, T.
Kirchartz
, U.
Rau
, C.
Rockstuhl
, and F.
Lederer
, Opt. Express
16
, 9332
(2008
). 5.
R.
Jacobsson
, J. Phys.
25
, 46
(1964
). 6.
R. W.
Bertram
, R. V.
Lang
, M. F.
Ouellette
, and K. L.
Yan
, Thin Solid Films
181
, 589
(1989
). 7.
R.
Bertram
, M. F.
Ouellette
, and P. Y.
Tse
, Appl. Opt.
28
, 2935
(1989
). 8.
W. J.
Gunning
, R. L.
Hall
, F. J.
Woodberry
, W. H.
Southwell
, and N. S.
Gluck
, Appl. Opt.
28
, 2945
(1989
). 9.
A. V.
Tikhonravov
, M. K.
Trubetskov
, T. V.
Amotchkina
, M. A.
Kokarev
, N.
Kaiser
, O.
Stenzel
, S.
Wilbrandt
, and D.
Gäbler
, Appl. Opt.
45
, 1515
(2006
). 10.
J.
Domaradzki
, M.
Mazur
, D.
Wojcieszak
, A.
Wiatrowski
, E.
Mańkowska
, and P.
Chodasewicz
, Coatings
13
, 1012
(2023
). 11.
M.
Mazur
, J.
Domaradzki
, D.
Wojcieszak
, and D.
Kaczmarek
, Surf. Coatings Technol.
334
, 150
(2018
). 12.
G.
Boivin
and D.
St.-Germain
, Appl. Opt.
26
, 4209
(1987
). 13.
G.
Boivin
, United States patent US 4579083 (U.S. Patent and Trademark Office
, Washington
, 1986
).14.
S.
Lim
, S.
Shih
, and J. F.
Wager
, Thin Solid Films
277
, 144
(1996
). 15.
D.
Rats
, D.
Poitras
, J. M.
Soro
, L.
Martinu
, and J.
Von Stebut
, Surf. Coatings Technol.
111
, 220
(1999
). 16.
I.
Ohlídal
, J.
Vohánka
, and M.
Čermák
, Coatings
11
, 22
(2021
). 17.
S. A.
Nikitov
et al, Uspekhi Fiz. Nauk
63
, 945
(2020
). 18.
A.
Mahmoud
, F.
Ciubotaru
, F.
Vanderveken
, A. V.
Chumak
, S.
Hamdioui
, C.
Adelmann
, and S.
Cotofana
, J. Appl. Phys.
128
, 161101
(2020
). 19.
Y.
Li
, W.
Zhang
, V.
Tyberkevych
, W. K.
Kwok
, A.
Hoffmann
, and V.
Novosad
, J. Appl. Phys.
128
, 130902
(2020
). 20.
A.
Barman
et al, J. Phys.: Condens. Matter
33
, 413001
(2021
). 21.
H.
Yu
, J.
Xiao
, and H.
Schultheiss
, Phys. Rep.
905
, 1
(2021
). 22.
A. V.
Chumak
et al, IEEE Trans. Magn.
58
, 0800172 (2022
). 23.
V. A.
Ignatchenko
and D. S.
Tsikalov
, J. Appl. Phys.
127
, 123903
(2020
). 24.
V. A.
Ignatchenko
and D. S.
Tsikalov
, J. Magn. Magn. Mater.
510
, 166643
(2020
). 25.
R. A.
Gallardo
, P.
Alvarado-Seguel
, T.
Schneider
, C.
Gonzalez-Fuentes
, A.
Roldán-Molina
, K.
Lenz
, J.
Lindner
, and P.
Landeros
, New J. Phys.
21
, 033026
(2019
). 26.
V. K.
Sakharov
, Y. V.
Khivintsev
, G. M.
Dudko
, A. S.
Dzhumaliev
, S. L.
Vysotskii
, A. I.
Stognij
, and Yu.A.
Filimonov
, Phys. Solid State
64
, 1247
(2022
). 27.
P.
Borys
, O.
Kolokoltsev
, N.
Qureshi
, M. L.
Plumer
, and T. L.
Monchesky
, Phys. Rev. B
103
, 144411
(2021
). 28.
I. G.
Vazhenina
, L. A.
Chekanova
, and R. S.
Iskhakov
, Bull. Russ. Acad. Sci. Phys.
83
, 713
(2019
). 29.
R. S.
Iskhakov
, S. V.
Stolyar
, L. A.
Chekanova
, and I. G.
Vazhenina
, Phys. Solid State
62
, 1861
(2020
). 30.
A. M.
Zyuzin
, M. A.
Bakulin
, V. V.
Radaikin
, and N. V.
Yantsen
, Phys. Solid State
59
, 268
(2017
). 31.
L.
Fallarino
, B. J.
Kirby
, M.
Pancaldi
, P.
Riego
, A. L.
Balk
, C. W.
Miller
, P.
Vavassori
, and A.
Berger
, Phys. Rev. B
95
, 134445
(2017
). 32.
B. J.
Kirby
, L.
Fallarino
, P.
Riego
, B. B.
Maranville
, C. W.
Miller
, and A.
Berger
, Phys. Rev. B
98
, 064404
(2018
). 33.
L.
Fallarino
, M.
Quintana
, E.
López Rojo
, and A.
Berger
, Phys. Rev. Appl.
16
, 034038
(2021
). 34.
C.
Wilts
and S.
Prasad
, IEEE Trans. Magn.
17
, 2405
(1981
). 35.
A. I.
Gumarov
, I. V.
Yanilkin
, R. V.
Yusupov
, A. G.
Kiiamov
, L. R.
Tagirov
, and R. I.
Khaibullin
, Mater. Lett.
305
, 130783
(2021
). 36.
M. A.
Herman
and H.
Sitter
, Molecular Beam Epitaxy: Fundamentals and Current Status (Springer Series in Materials Science)
(Springer
, Berlin
, 1989
).37.
Eurotherm 3500 Series: User Guide: Process Controllers ENG 3500 Series.
38.
A.
Esmaeili
et al, Thin Solid Films
669
, 338
(2019
). 39.
I.
Yanilkin
, A.
Gumarov
, I.
Golovchanskiy
, B.
Gabbasov
, R.
Yusupov
, and L.
Tagirov
, Nanomaterials
12
, 4361
(2022
). 40.
S.
Iihama
, M.
Khan
, H.
Naganuma
, M.
Oogane
, T.
Miyazaki
, S.
Mizukami
, and Y.
Ando
, J. Magn. Soc. Japan
39
, 57
(2015
). 41.
N. H.
Luong
, T. T.
Trung
, T. T.
Hong
, N. H.
Nam
, M.-H.
Phan
, P.
Jenei
, J. L.
Lábár
, and Jenő
Gubicza
, Appl. Phys. A
128
, 936
(2022
). 42.
I. V.
Yanilkin
, A. I.
Gumarov
, I. A.
Golovchanskiy
, G. F.
Gizzatullina
, A. G.
Kiiamov
, B. F.
Gabbasov
, R. V.
Yusupov
, and L. R.
Tagirov
, Tech. Phys.
68
, 202
(2023
). 43.
T. B.
Massalski
et al, Binary Alloy Phase Diagrams
(American Society for Metals
, OH
, 1986
).44.
J.
Crangle
, Philos. Mag.
5
, 335
(1960
). 45.
A.
Esmaeili
, I. V.
Yanilkin
, A. I.
Gumarov
, I. R.
Vakhitov
, B. F.
Gabbasov
, R. V.
Yusupov
, D. A.
Tatarsky
, and L. R.
Tagirov
, Sci. China Mater.
64
, 1246
(2021
). 46.
C.
Bihler
, W.
Schoch
, W.
Limmer
, S. T. B.
Goennenwein
, and M. S.
Brandt
, Phys. Rev. B: Condens. Mater. Phys.
79
, 045205
(2009
). 47.
I. A.
Golovchanskiy
, I. V.
Yanilkin
, A. I.
Gumarov
, B. F.
Gabbasov
, N. N.
Abramov
, R. V.
Yusupov
, R. I.
Khaibullin
, and L. R.
Tagirov
, Phys. Rev. Mater.
6
, 064406
(2022
). 48.
N.
Miyata
, M.
Hagiwara
, K.
Tomotsune
, H.
Nakada
, H.
Kadomatsu
, and H.
Fujiwara
, J. Phys. Soc. Japan
55
, 946
(1986
). 2024 Published under an exclusive license by the AVS.
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