Research
1. Areas
of Research Interest:
-
High Tc Superconducting Ceramics
-
Semiconducting glasses
-
Semimagnetic Semiconductors
-
Oxides (Titanium, Vanadium etc.)
-
Magneli Phases
-
Inorganic Complexes
See list of Research Publications, attached.
2.
Development
-
I have experience in designing
3He
cryostats which can be used for carrying out investigations at low
temperatures (0.3 - 100 K). Also in my previous work I have developed a
specific heat system for measuring the specific heat of very small samples
(discussed in papers no. 2 and no. 4 in detail).
At KFUPM Dr. Keith and myself have developed an
Ultra-Low Temperature Lab where we have installed a dilution refrigerator
(SHE Corp. Model DRI-420) capable of achieving millikelvin temperatures. The
millikelvin facility is used for carrying out investigations at ultra-low
temperatures.
Also for investigating high temperature superconductors
Dr. Keith and myself have designed and fabricated resistance-measuring
set-up using the facilities of our Physics Department workshop.
In brief, I have experience in the operation and
maintenance of:
i)
3He refrigerator (cryostat)
ii)
Dilution Refrigerator (using
3He
4He
mixture)
iii)
Sample Vibrating Magnetometer
iv)
Squid Magnetometer
v)
Low Temperature devices in general
vi)
Spectrophotometer (Varian Model DMS-90).
3.
Research Proposals
1) “Specific Heat and magnetic susceptibility
Investigations of Semimagnetic Semiconductors” which was approved for
funding by the KFUPM research committee. (Code # PHY/PHYSPROP/43) and has
been completed. (Please see RESEARCH ABSTRACTS, KFUPM, page 87, April 1990).
2)
X-ray Photoelectron Spectroscopy (XPS)
and Magnetization
Studies of Strontium-Borate Vanadate Glasses(Approved
Project # FT/2002-05),
COMPLETED
3)
X-ray photoelectron spectroscopy (XPS) and magnetization studies of TM-
Tellurite Glasses APPROVED
( SABIC -024) , June 01, 2004 – June 01, 2005.
COMPLETED
4) “Direct
Current (DC) Conductivity Studies of Strontium-Borate-Vanadate Glasses”
Approved (Project # PH/Glasses/346), March 01, 2007 – August 31, 2008.
COMPLETED
5)
Effect of Laser Irradiation on the Structure and Valence States of
Transition Metal Ions in Phosphate, Tellurite and Borate Glasses (Grant
No.
LRG101001) Submitted to the
Research Committee
In addition to
the formally approved projects, I have carried out research on several
projects through the support of the department as evident from my
PUBLICATIONS.
4. Collaborative Research Projects
I have been active in collaborative research both with Scientists abroad as well as within KFUPM.
Abroad:
-
Prof. R.R. Galazka,
-
Prof. P.H. Keesom, Physics
Department,
- Prof. L.E. Wenger, Physics Department, Wayne State University, Detroit, MI 48202, U.S.A.
Within KFUPM
- Dr. M.S. Hussain, Prof. of Chemistry, KFUPM.
- Dr. V. Keith, Associate Prof. of Physics, KFUPM.
- Dr. E.E. Khawaja, Senior Research Scientist, ERL.
- Dr. M.A.Salim , Associate Prof. of Physics, KFUPM
- Dr. N. Tabet, Associate Prof. of Physics, KFUPM
- Dr. A. Mekki, Assistant Prof. of Physics, KFUPM
This collaborative work and the systems investigated are shown in the list of publications.
5. Instrumentation:
Operation and Maintenance of:
(i) Ultra high vacuum technology
(ii) 3He refrigerator (cryostat)
(iii) Dilution Refrigerator (using 3He-4He mixture).
(iv) Sample Vibrating Magnetometer
(v) Squid Magnetometer
(vi) Low Temperature devices in general
vii) Spectrophotometer (Varian Model DMS-90).
List of Research Publications
Research Publications
A. Published in Refereed Journals
-
Publications before joining KFUPM
1.
L.E. Wenger, G.D. Khattak,
and P.H. Keesom, “Calorimetric, resistance and susceptibility investigations of
(V1-x Tix)2 O3 at
low temperature”, Bull. of American Phys. Soc., paper A13,
April 1977 .
2.
G.D. Khattak and P.H. Keesom,
“Low temperature specific heat of niobium doped TiO2”,
Phys. Rev. B17, 2192, 1978.
3.
G.D. Khattak, P.H. Keesom,
and S.P. Faile, “Specific heat of V6O11 between
0.3 and 44 K”, Solid State Comm. 26, 441, 1978.
4.
G.D. Khattak, and P.H.
Keesom, “Magnetic field dependence of the specific heat and resistivity of
graphite”, Phys. Rev B18, 6178, 1978.
5.
G.D. Khattak, P.H. Keesom,
and S.P. Faile, “Specific heat of the magneli phases (Vn 02n-1,
n=3-8)”, Phys. Rev. B18, 6181, 1978.
6.
S. Nagata, B.F. Griffing, G.D.
Khattak, and P.H. Keesom, “Susceptibility and specific heat of insulating
magneli phases VnO2n-1”,
J. Appl. Phys Vol. 50, 7575, 1979.
-
Publications after joining
KFUPM
7.
S. Nagata, R.R. Galazka, D.P. Mullin, H. Akbarzadeh,
G.D. Khattak, J.K. Furdyna, and P.H.
Keesom, “Magnetic susceptibility, specific heat, and the spin-glass transition
in Hg1-x MnxTe”,
Phys. Rev. B22, 331, 1980.
8.
G.D. Khattak, C.K. Chandra,
S. Nagata and P.H. Keesom, “Specific heat, and the spin-glass transition in Hg1-xMnx
Se”, Phys. Rev. 23B, 3553, 1981.
9.
G.D. Khattak, H. Akbarzadeh,
and P.H. Keesom, “Low temperature study of specific heat of mercury calcogenides
and HgI2, Phys, Rev. B23, 2911, 1981.
10.
S. Nagata, R.R. Galazka, G.D.
Khattak, C.D. Amarasekara, J.K. Furdyna and P.H. Keesom, “Spin glass
transition in a diluted frustrated lattice: Cd1-x Mnx
Te, Hg1-x Mnx Te
and Hg1-x MnxSe”
Physica 107B+C, 311, 1981.
11.
C.D. Amarasekara, G.D. Khattak,
and P.H.Keesom, “Specific heat of sodium vanadium bronzes
NAxV2O5 between
0.3 and 50K”, Phys. Rev. B27, 978, 1983.
12.
G.D. Khattak, “Specific heat
of uranium dioxide between 0.3 and 50k”, Phys. Status Solidi (a) 75, 317, 1983.
13.
G.D. Khattak, M.S. Hussain,
G.W. Hunter, and L.E. Wenger, “Specific heat and magnetic susceptibility studies
on bromobis (1,4-Diazacycloheptane) Copper (II) Perchlorate, (Cu(dach)2Br)
(C104),
at Low Temperature”, Phys. Stat. Sol. (b) 130, 587, 1985.
14.
G .D. Khattak, A. Twardowksi, and
R.R. Galazka, “Magnetization of
Cd1-xMnxTe”,
Phys. Stat. Sol. (a) 87, K57, 1985.
15.
L.E. Wenger, G.W. Hunter,
J.A. Mydosh, and G.D. Khattak,
“Anisotropic magnetic field effects in a dilute YGd alloy“, J. Mag. & Magnetic
Materials, 54-57, 201, 1986.
16.
M.S. Hussain, J. Ahmed, M. Haque and
G.D. Khattak, “The crystal structure
and low temperature magnetic susceptibility of square-planner Bis (1, 4
Diazacycloheptane) Nickel (II) Perchlorate Dihydrate”, J. of Transition Metal
Chem., 11. 155, 1986.
17.
E.E. Khawaja and G.D. Khattak,
“The optical absorption edge in vanadate glasses”, Phys. Stat Sol (a) 93, 621,
1986.
18.
M.S. Hussain, E.E. Khawaja and
G.D. Khattak, “The optical and infrared studies of sodium-ditellurate
glasses containing chromium oxide", Phys Stat Sol (a), 97, 451, 1986.
19.
G.D. Khattak and M.S.
Hussain, “Low temperature magnetization studies of nickel (II) complexes of 1,
4-diazacycloheptane”, Journal of Magnetism and Magnetic Materials, 69, 263,
1987.
20.
G.D. Khattak, M.S. Hussain,
P.H. Keesom and L.E. Wenger, “Low temperature calorimetric and magnetic studies
of copper (II) in 1, 4-diazacycloheptane-copper (II) systeme”, J. Mag. and
Magnetic Materials, 75, 407, 1988.
21.
G.D. Khattak, V. Keith and
Ph. Martin, “Magnetization of semimagnetic semiconductors”, Phys Stat. Sol. (a)
114, 71, 1989.
22.
G.D. Khattak, M.S. Hussain
and V. Keith, “Low temperature specific heat of (Cu(dach)2 Cl2”,
J.Mag. and Magnetic Materials, 82, 1989.
23.
E.E. Khawaja, M. Salim, M.A. Khan, F.F. Al-Adel,
G.D. Khattak and Z. Hussain, “Effect
of Ni doping on vanadium phosphate glasses”, J. Non-Crystalline Solids 110, 33,
1989.
24.
Z. Hussain, E.E. Khawaja, M.A. Salim and
G.D. Khattak, “X-ray photoelectron
spectroscopy investigation of sodium-ditellurate glasses”, AJSE, 15, 337, 1990.
25.
G.D. Khattak, V. Keith, Ph.
Martin and E.E. Khawaja , “Magnetization Studies of Ni doped vanadium-phosphate
glasses”, J. Mag. and Magnetic Materials, 94, 1991.
26.
L. Henry, L.E. Wenger, G.D.
Khattak and A. Tari, “A calorimetric study of the magnetic order in
H0(Co1-xRhx)2",
Phys. Rev.B 43, 689, 1991.
27.
G.D. Khattak, V. Keith and
Ph. Martin, “Magnetization of semimagnetic semiconductor Zn1-xMnxTe",
Phys. Stat. Sol. (a) 130, 169, 1992.
28.
M.S. Hussain, G.D. Khattak
and V. Keith, “Superconducting ceramcis, noval preparation, XRD and SEM studies
of the effect of compositional variations on superconductivity of
La-(Ba-Sr-Ca)-Cu-O ceramics”, J. Materials Science, 28, 2887, 1993.
29.
G.D. Khattak, M.S. Hussain,
“Low-temperature magnetization and spectral studies of cobalt complexes of
alpha-furilglyoxine”, J. Mag. & Magnetic Materials 134, 137, 1994.
30.
M.A. Salim, G.D. Khattak, M.
Sakhawat Hussain and E.E. Khawaja, “X-ray photoelectron spectroscopy, fourier
transform infrared spectroscopy and electrical conductivity studies of copper -
phosphate glasses”, J. Non-Crystalline Solids 185, 101, 1995.
31.
G.D.Khattak, L.E. Wenger, M.A. Salim, and E.E. Khawaja, “Study of
valency states of copper in copper-phosphate glasses”, J. Materials Science 30,
4032, 1995.
32.
G.D. Khattak, E.E. Khawaja,
L.E. Wenger, M.A. Salim, and A.B. Hallak, “Composition dependent loss of
phosphorus in the formation of transition-metal phosphate glasses”, J.
Non-Crystalline Solids 194, 1, 1996.
33.
G.D. Khattak, A.S. Al-Harthi,
M.A. Salim, “Magnetization, RBS, and XPS studies of manganese-phosphate
glasses”, AJSE, 22, 57, 1997.
34. E.E.
Khawaja, S.M. Durrani, J. Shirokoff, G.D. Khattak, M.A. Salim, M.S.
Hussain, “Study of e-beam evaporated Sn-doped indium oxide films”, in Solar
Energy Materials and Solar Cells, 44, 37, 1996.
35.
G.D. Khattak, M.A. Salim, A.S.
Al-Harthi and L.E. Wenger, “X-ray photoelectron spectroscopy (XPS) and
magnetization studies of molybdenum-phosphate glasses”, J. Non-Crystalline
Solids 212, 180, 1997.
36.
G.D.
Khattak, M.A. Salim, L.E. Wenger and A.H. Gilani, “X-ray photoelectron
spectroscopy (XPS) and magnetization studies of iron-sodium borate glasses”, J.
Non-Crystalline Solids, 244 (1999) 128.
37.
A.M.
Al-Shukri, G.D. Khattak and M.A. Salim, “ Electrical conductivity of
Molybdenum phosphate (MoO3:P2O5) glasses,” Journal of
Materials Science, 35 (2000) 123.
.
38. G.D. Khattak, M.A. Salim, L.E. Wenger and
A.H. Gilani, “X-ray photoelectron spectroscopy (XPS) and magnetization studies
of copper-vanadium phosphate glasses”, J. Non-Crystalline Solids, 262 (2000) 66.
39. M.A. Salim, G.D. Khattak, P.S. Fodor and
L.E. Wenger, “X-ray photoelectron spectroscopy (XPS) and magnetization studies
of iron-vanadium phosphate glasses, J. Non-Crystalline Solids, 289 (2001) 185.
40.
G.D.
Khattak and M.A. Salim, “ X-ray photoelectron spectroscopic (XPS)
of Zinc-Tellurite glasses”,
J. Electron Spectroscopy and Related phenomena,
123 (2002) 47.
41.
Manford Chinkhota, P.S. Fodor, G.D. Khattak, and L.E. Wenger, “
Investigation of the Magnetic Properties in strontium-borate vanadate
Glasses, J. Applied Physics 91 (2002) 8269.
42. M.A. Salim, G.D. Khattak,
43.
A. Mekki, G Khattak and LE
Wenger, “Structure and magnetic properties of lead vanadate glasses”,
Journal of Non-Crystalline Solids 330 (2003) 156.
44.
A. Mekki, G. Khattak, D. Holland, F.S.
Fodor and L.E. Wenger, “Structure and magnetic properties of vanadium silicate
glasses”, Journal of Non-Cryst. Solids 318 (2003) 193.
45.
G.D. Khattak, N.Tabet, M.A. Salim,
“X-ray photoelectron spectroscopic studies of vanadium-strontium-borate [(V2O5)x
(SrO)0.2 (B2O3)0.8-x] oxide
glasses”, J. Electron Spectroscopy and related Phenomena 133 (2003) 103-111.
46.
G.D. Khattak, A. Mekki, “ X-ray
photoelectron spectroscopic studies of copper tellurite glasses” Physica Scripta
70 (2004) 187.
47.
G.
Khattak, A. Mekki and L.E. Wenger, “Local structure and redox state of
copper in tellurite glasses” Journal of Non-Crystalline Solids 337
(2004) 174.
48.
G.D. Khattak, N. Tabet, “ Local
Structure and
49.
G.D. Khattak, N. Tabet, L.E. Wenger,
“Local Structure and
50.
A. Mekki, G.D. Khattak, “ An XPS Study
of iron – sodium-tellurite Glasses” Physics & Chemistry of Glasses
46 (2005) 161.
51.
A. Mekki, G Khattak and L.E.
Wenger, “Structure and magnetic properties of MoO3-TeO2
glasses”, J. Non-Cryst. Solids 351 (2005) 2493.
52.
G.D. Khattak, N. Tabet, L.E. Wenger,
"Structural properties of glasses in the series (SrO)x(V2O5)1-x,
(SrO)0.5-y(B2O3)y(V2O5)0.5, and (SrO)0.2(B2O3)z(V2O5)0.8-z
" Physical Review B 72 (2005) 104203.
53.
A. Mekkki, G Khattak and L.E. Wenger,
“Structural and Magnetic investigation of Fe2O3-TeO3 glasses”, J.
Non-Cryst. Solids 352 (2006) 3326.
54.
A. Mekki, G.D. Khattak and L.E.
Wenger, "XPS and Magnetic
Studies of Vanadium Tellurite Glassses", J. Electron Spect. & Relat.
Phenom. 175 (2009) 21
55.
G.D.
Khattak and A. Mekki, “Structure
and Electrical Properties of SrO-borovanadate 0.5(V2O5)-(0.5-y)(SrO)-y(B2O3)
Glassses”, J. of
Phys. and Chem. of Solids 70 (2009) 1330.
56.
G.D. Khattak, A. Mekki and L.E.
Wenger, "X-ray Photoelectron Spectroscopy and Magnetic Susceptibility Studies of
Vanadium-Phosphate Glasses", J. Non-Cryst. Solids 355(2009) 2148.
57.
A. Mekki, G. Khattak
and
58.
A. Mekki and G.D. Khattak,
"X-ray Photoelectron Spectroscopy Study of Sodium - Copper - Germanate
Glasses", Physica Status Solidi-A 1 ( 2010)
73
59.
G.D.
Khattak, A. Mekki
and M. Gonndal, "Effect of laser irradiation on the structure and valence
states of copper in Cu-Phosphate Glass by XPS studies" Applied Surface
Science 256 (2010) 3630
60.
G.D. Khattak, A. Mekki and
66.
M. A. Gondal,
A.M. Ilyas, T. A. Fasasi , M.A. Dastageer, Z. S. Seddigi, T.F. Qahtan, M.
Faiz, G. D. Khattak (2015), Synthesis
of Green TiO2/ZnO/CdS
Hybrid Nano-catalyst for Efficient Light Harvesting using an Elegant Pulsed
Laser Ablation in Liquids Method, Applied Surface Science 357 (2015) 2217–2222)
B.
Conference Papers:
1.
L.E. Wenger, G.D. Khattak and
P.H. Keesom “Calorimetric, resistance and susceptibility investigations of
at Low Temperature”,
Bulletin of the American Phys. Soc., April 1977.
2.
G.D. Khattak, “Specific heat
of
between 0.3 and 50K”
International Conference on Solid State Physics",
3.
G.W.
Hunter, L.E. Wenger, J.A. Mydosh, and
G.D. Khattak, "Anisotropic
magnetic field effects in a dilute YGd alloy”. International Conference on
Magnetism, 1985.
4. L.Henry, L.E. Wenger,
G.D. Khattak, and A. Tari,
“Calorimetric study of the magnetic ordering in
alloys”, Bulletin of
the American Physical Society 34, 566, 1989.
Society 34, 566, 1989.
6.
M.S. Hussain,
G.D. Khattak and V. Keith, “Effects
of compositional variations on the superconductivity of La-(Ba-Sr-Ca)-Cu-O
ceramic systems”, presented in the Conference entitled "The Third National
Meeting of Chemists at KFUPM, 1989".
7.
Manford Chinkhota, P.S. Fodor, G.D. Khattak, and
L.E. wenger, “ Investigation of the Magnetic properties in Transition Metal
Oxide Glasses” Proceedings of 46th Annual conference on Magnetism &
Magnetic Materials, Nov. 11-15, 2001.
6.
G.D. Khattak and M.A. Salim, “ X-ray
photoelectron spectroscopy (XPS) studies of Iron – vanadium phosphate glasses”
Proceedings of The First Saudi Science Conference, p. 103 (2001).
7.
G.D.
Khattak, A. Mekki, M.A. Al-Shukri, “XPS studies of copper tellurite
glasses”, Presented at the First International Conference APHYS2003,
8.
G.D.
Khattak and A. Mekki, “ XPS studies of copper-tellurite glasses” The
Second Saudi Science Conference, KAAU, Jeddah, 15-17 March 2004.
9.
A. Mekki and G.D. Khattak, “An XPS Study
of iron – sodium-tellurite Glasses” Presented in 7th ESG conference
on Glass Science and Technology, Athens, Greece, April 25 -29, 2004
10.
G.D. Khattak, N. Tabet, A. Mekki “Local
structure and redox state of vanadium in Vanadium-Strontium-Borate
[(V2O5)0.5(SrO)0.5-y(B2O3)y] Oxide Glasses” Presented at the 7th ESG
Conference on Glass Science Technology,
11.
G.D. Khattak, A. Mekki, M. Al-Shukri, “ XPS
studies of copper tellurite glasses”, Conference in
14.
G.D. Khattak, N. Tabet, A. Mekki, “ X-ray
photoelectron spectroscopic (XPS) studies of (SrO)x(V2O5)1-x
oxide glasses” The Second Saudi Science Conference, Jeddha. (2004).
15.
A. Mekki, G.D. Khattak, “ XPS studies of
copper-tellurite glasses” The Second Saudi Science Conference, Jeddha. (2004).
16.
G.D. Khattak. N. Tabet, A. Mekki, ““Local
Structure and
17.
A. Mekki, G.D. Khattak, “ An XPS Study of iron –
sodium-tellurite Glasses” Presented in 7th ESG conference on Glass
Science and Technology,
18.
A. Mekki, G.D. Khattak “ XPS study of MoO3-TeO2
Glasses” presented in ISG/ICG 2005 secretariate, Shanghai, China (April 05 – 14,
2005).
19.
G.D. Khattak and A. Mekki “ XPS studies of
Vanadium-phosphate glasses” Third
Meeting of Saudi Physical Society,
20.
G.D. Khattak and A. Mekki “ XPS studies of
vanadium-tellurite glasses” The Third Saudi Science Conference,
21.
A. Mekki and G.D. Khattak “ DC conductivity
studies of some vanadate glasses” The Third Saudi Science Conference, Riyadh,
March 11-13 (2007).
22.
G.D.
Khattak and A. Mekki “XPS studies of vanadium phosphate glasses” ICG Conference
on Glasses,
23.
A. Mekki
and G.D. Khattak “DC electrical conductivity studies of vanadium Phosphate
glasses” ICG Conference on Glasses, Strasbourg, France, July 1-6, 2007.
24.
G.D.
Khattak “DC conductivity studies of some vanadate glasses” March Meeting
of American Physical Society (APS),
C.
Manuals Written:
PHYS 102 Lab Manual by Drs. M.S. El-Kateb,
G.D. Khattak and R.F. Lynch (As
mentioned, modified version of the same Lab Manual is being used)